diff --git a/data/construction/us_constructions.xml b/data/construction/us_constructions.xml
index b7a2ab51..2d4a27f8 100644
--- a/data/construction/us_constructions.xml
+++ b/data/construction/us_constructions.xml
@@ -39,7 +39,7 @@
 		</window>
 	</windows>
 	<materials>
-		<material id="1" name="MAT-CC05 8 HW CONCRETE">
+		<material id="1" name="MAT-CC05 8 HW CONCRETE" lca_id="7">
 			<conductivity units="W/m K">1.311</conductivity>
 			<density units="kg/m3">2240</density>
 			<specific_heat units="J/kg K">836.8</specific_heat>
@@ -47,14 +47,14 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="2" name="CP02 CARPET PAD">
+		<material id="2" name="CP02 CARPET PAD" lca_id="7">
 			<no_mass>true</no_mass>
 			<thermal_resistance units="m2 K/W">0.21648</thermal_resistance>
 			<thermal_absorptance units="-">0.9</thermal_absorptance>
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.8</visible_absorptance>
 		</material>
-		<material id="3" name="Floor Insulation [4]">
+		<material id="3" name="Floor Insulation [4]" lca_id="7">
 			<conductivity units="W/m K">0.045</conductivity>
 			<density units="kg/m3">265</density>
 			<specific_heat units="J/kg K">836.8</specific_heat>
@@ -62,7 +62,7 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="4" name="1IN Stucco">
+		<material id="4" name="1IN Stucco" lca_id="7">
 			<conductivity units="W/m K">0.6918</conductivity>
 			<density units="kg/m3">1858</density>
 			<specific_heat units="J/kg K">837</specific_heat>
@@ -70,7 +70,7 @@
 			<solar_absorptance units="-">0.92</solar_absorptance>
 			<visible_absorptance units="-">0.92</visible_absorptance>
 		</material>
-		<material id="5" name="8IN Concrete HW">
+		<material id="5" name="8IN Concrete HW" lca_id="7">
 			<conductivity units="W/m K">1.7296</conductivity>
 			<density units="kg/m3">2243</density>
 			<specific_heat units="J/kg K">837</specific_heat>
@@ -78,7 +78,7 @@
 			<solar_absorptance units="-">0.65</solar_absorptance>
 			<visible_absorptance units="-">0.65</visible_absorptance>
 		</material>
-		<material id="6" name="Wall Insulation [37]">
+		<material id="6" name="Wall Insulation [37]" lca_id="7">
 			<conductivity units="W/m K">0.0432</conductivity>
 			<density units="kg/m3">91</density>
 			<specific_heat units="J/kg K">837</specific_heat>
@@ -86,7 +86,7 @@
 			<solar_absorptance units="-">0.5</solar_absorptance>
 			<visible_absorptance units="-">0.5</visible_absorptance>
 		</material>
-		<material id="7" name="1/2IN Gypsum">
+		<material id="7" name="1/2IN Gypsum" lca_id="7">
 			<conductivity units="W/m K">0.16</conductivity>
 			<density units="kg/m3">784.9</density>
 			<specific_heat units="J/kg K">830</specific_heat>
@@ -94,7 +94,7 @@
 			<solar_absorptance units="-">0.92</solar_absorptance>
 			<visible_absorptance units="-">0.92</visible_absorptance>
 		</material>
-		<material id="8" name="Wood Siding">
+		<material id="8" name="Wood Siding" lca_id="7">
 			<conductivity units="W/m K">0.11</conductivity>
 			<density units="kg/m3">544.62</density>
 			<specific_heat units="J/kg K">1210</specific_heat>
@@ -102,7 +102,7 @@
 			<solar_absorptance units="-">0.78</solar_absorptance>
 			<visible_absorptance units="-">0.78</visible_absorptance>
 		</material>
-		<material id="9" name="Wood Shingles">
+		<material id="9" name="Wood Shingles" lca_id="7">
 			<conductivity units="W/m K">0.115</conductivity>
 			<density units="kg/m3">513</density>
 			<specific_heat units="J/kg K">1255</specific_heat>
@@ -110,7 +110,7 @@
 			<solar_absorptance units="-">0.78</solar_absorptance>
 			<visible_absorptance units="-">0.78</visible_absorptance>
 		</material>
-		<material id="10" name="1IN Wood Decking">
+		<material id="10" name="1IN Wood Decking" lca_id="7">
 			<conductivity units="W/m K">0.1211</conductivity>
 			<density units="kg/m3">593</density>
 			<specific_heat units="J/kg K">2510</specific_heat>
@@ -118,7 +118,7 @@
 			<solar_absorptance units="-">0.78</solar_absorptance>
 			<visible_absorptance units="-">0.78</visible_absorptance>
 		</material>
-		<material id="11" name="Roof Insulation [23]">
+		<material id="11" name="Roof Insulation [23]" lca_id="7">
 			<conductivity units="W/m K">0.049</conductivity>
 			<density units="kg/m3">265</density>
 			<specific_heat units="J/kg K">836.8</specific_heat>
@@ -126,14 +126,14 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="12" name="MAT-SHEATH">
+		<material id="12" name="MAT-SHEATH" lca_id="7">
 			<no_mass>true</no_mass>
 			<thermal_resistance units="m2 K/W">0.36256</thermal_resistance>
 			<thermal_absorptance units="-">0.9</thermal_absorptance>
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="14" name="Metal Decking">
+		<material id="14" name="Metal Decking" lca_id="7">
 			<conductivity units="W/m K">45.006</conductivity>
 			<density units="kg/m3">7680</density>
 			<specific_heat units="J/kg K">418.4</specific_heat>
@@ -141,7 +141,7 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.3</visible_absorptance>
 		</material>
-		<material id="15" name="Roof Membrane">
+		<material id="15" name="Roof Membrane" lca_id="7">
 			<conductivity units="W/m K">0.16</conductivity>
 			<density units="kg/m3">1121.29</density>
 			<specific_heat units="J/kg K">1460</specific_heat>
@@ -149,28 +149,28 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="16" name="CP02 CARPET PAD">
+		<material id="16" name="CP02 CARPET PAD" lca_id="7">
 			<no_mass>true</no_mass>
 			<thermal_resistance units="m2 K/W">0.21648</thermal_resistance>
 			<thermal_absorptance units="-">0.9</thermal_absorptance>
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.8</visible_absorptance>
 		</material>
-		<material id="18" name="CP02 CARPET PAD">
+		<material id="18" name="CP02 CARPET PAD" lca_id="7">
 			<no_mass>true</no_mass>
 			<thermal_resistance units="m2 K/W">0.21648</thermal_resistance>
 			<thermal_absorptance units="-">0.9</thermal_absorptance>
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.8</visible_absorptance>
 		</material>
-		<material id="20" name="CP02 CARPET PAD">
+		<material id="20" name="CP02 CARPET PAD" lca_id="7">
 			<no_mass>true</no_mass>
 			<thermal_resistance units="m2 K/W">0.21648</thermal_resistance>
 			<thermal_absorptance units="-">0.9</thermal_absorptance>
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.8</visible_absorptance>
 		</material>
-		<material id="21" name="Wall Insulation [38]">
+		<material id="21" name="Wall Insulation [38]" lca_id="7">
 			<conductivity units="W/m K">0.045</conductivity>
 			<density units="kg/m3">265</density>
 			<specific_heat units="J/kg K">836.8</specific_heat>
@@ -178,7 +178,7 @@
 			<solar_absorptance units="-">0.7</solar_absorptance>
 			<visible_absorptance units="-">0.7</visible_absorptance>
 		</material>
-		<material id="22" name="metal siding">
+		<material id="22" name="metal siding" lca_id="7">
 			<conductivity units="W/m K">44.96</conductivity>
 			<density units="kg/m3">7688.86</density>
 			<specific_heat units="J/kg K">410</specific_heat>
diff --git a/data/life_cycle_assessment/lca_data.xml b/data/life_cycle_assessment/lca_data.xml
index 29bb356d..6e231b60 100644
--- a/data/life_cycle_assessment/lca_data.xml
+++ b/data/life_cycle_assessment/lca_data.xml
@@ -1,5 +1,394 @@
 <?xml version="1.0" encoding="utf-8"?>
 <library name="LCA">
+    <building_materials>
+        <material type = "brick" id="1"  name= "clay brick">
+            <density unit= "ton/m3"> 1.8 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 560 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0.7 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "brick" id="2"  name= "light clay brick">
+            <density unit= "ton/m3"> 1.2 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 310 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0.7 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "brick" id="3"  name= "refractory">
+            <density unit= "ton/m3"> 2 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0.7 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "brick" id="4"  name= "sand-lime brick">
+            <density unit= "ton/m3"> 1.4 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 300 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0.7 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="5"  name= "light weight expanded clay">
+            <density unit= "ton/m3"> 1.6 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 900 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="6"  name= "lightweight Expanded perlite">
+            <density unit= "ton/m3"> 1.6 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2340 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="7"  name= "lightweight expanded vermiculite">
+            <density unit= "ton/m3"> 1.6 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1570 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="8"  name= "lightweight polystyrene">
+            <density unit= "ton/m3"> 1.4 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1840 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="9"  name= "lightweight pumice">
+            <density unit= "ton/m3"> 1.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 410 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="10"  name= "concrete 20 MPa">
+            <density unit= "ton/m3"> 2.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 160 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="11"  name= "concrete 25 MPa">
+            <density unit= "ton/m3"> 2.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="12"  name= "concrete 30-32 MPa">
+            <density unit= "ton/m3"> 2.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 230 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="13"  name= "concrete 35 MPae">
+            <density unit= "ton/m3"> 2.4 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="14"  name= "concrete 50 MPa">
+            <density unit= "ton/m3"> 2.4 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 280 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="15"  name= "concrete block">
+            <density unit= "ton/m3"> 2.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "concrete" id="16"  name= "concrete roof tile">
+            <density unit= "ton/m3"> 1.2 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "glass" id="17"  name= "flat glass, coated">
+            <density unit= "ton/m3"> 2.58 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2660 </embodied_carbon>
+            <recycling_ratio> 0.95 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.05 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "glass" id="18"  name= "glass fibre">
+            <density unit= "ton/m3"> 2.58 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 5260 </embodied_carbon>
+            <recycling_ratio> 0.95 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.05 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="19"  name= "cellulose fibre">
+            <density unit= "ton/m3"> 0.06 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1760 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="20"  name= "cork slab">
+            <density unit= "ton/m3"> 0.122 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="21"  name= "polystyren foam">
+            <density unit= "ton/m3"> 0.028 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3180 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="22"  name= "polystyrene 10% recycled">
+            <density unit= "ton/m3"> 0.024 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 5140 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="23"  name= "stone wool">
+            <density unit= "ton/m3"> 0.1 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 6040 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="24"  name= "foam glass">
+            <density unit= "ton/m3"> 0.3 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 5380 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "insulation" id="25"  name= "glass wool mat">
+            <density unit= "ton/m3"> 0.032 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2150 </embodied_carbon>
+            <recycling_ratio> 0.9 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "wood" id="26"  name= "fiberboard, hard">
+            <density unit= "ton/m3"> 0.9 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3420 </embodied_carbon>
+            <recycling_ratio> 0.6 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.4 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "wood" id="27"  name= "three layerd laminated board">
+            <density unit= "ton/m3"> 0.7 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1430 </embodied_carbon>
+            <recycling_ratio> 0.6 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.4 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "wood" id="28"  name= "fibreboard, soft">
+            <density unit= "ton/m3"> 0.65 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2780 </embodied_carbon>
+            <recycling_ratio> 0.6 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.4 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "wood" id="29"  name= "plywood">
+            <density unit= "ton/m3"> 0.72 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2190 </embodied_carbon>
+            <recycling_ratio> 0.6 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.4 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="30"  name= "acrylic filler">
+            <density unit= "ton/m3"> 1.43 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1070 </embodied_carbon>
+            <recycling_ratio> 0 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0 </company_recycling_ratio>
+            <landfilling_ratio> 1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="31"  name= "anhydrite floor">
+            <density unit= "ton/m3"> 1.43 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
+            <recycling_ratio> 0 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0 </company_recycling_ratio>
+            <landfilling_ratio> 1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="32"  name= "base plaster">
+            <density unit= "ton/m3"> 1.43 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 430 </embodied_carbon>
+            <recycling_ratio> 0 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0 </company_recycling_ratio>
+            <landfilling_ratio> 1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="33"  name= "cement cast plaster floor">
+            <density unit= "ton/m3"> 1.43 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 340 </embodied_carbon>
+            <recycling_ratio> 0 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0 </company_recycling_ratio>
+            <landfilling_ratio> 1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="34"  name= "cement tile">
+            <density unit= "ton/m3"> 1.2 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="35"  name= "ceramic tile">
+            <density unit= "ton/m3"> 2.1 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1410 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="36"  name= "clay plaster">
+            <density unit= "ton/m3"> 1.43 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 250 </embodied_carbon>
+            <recycling_ratio> 0 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 0 </company_recycling_ratio>
+            <landfilling_ratio> 1 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="37"  name= "fiber cement corrugated slab">
+            <density unit= "ton/m3"> 1.44 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 1480 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="38"  name= "fiber cement facing tile">
+            <density unit= "ton/m3"> 1.44 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 2220 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "wood" id="39"  name= "gypsum fibreboard">
+            <density unit= "ton/m3"> 1.27 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3960 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "covering" id="40"  name= "gypsum plaster board">
+            <density unit= "ton/m3"> 1.15 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 760 </embodied_carbon>
+            <recycling_ratio> 0.8 </recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.2 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "metal" id="41"  name= "steel">
+            <density unit= "ton/m3"> 8 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3160 </embodied_carbon>
+            <recycling_ratio>  0.98</recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.02 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "metal" id="42"  name= "aluminium">
+            <density unit= "ton/m3"> 2.7 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 5370 </embodied_carbon>
+            <recycling_ratio>  0.98</recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.02 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+        <material type = "metal" id="43"  name= "reinforcing steel">
+            <density unit= "ton/m3"> 7.85 </density>
+            <embodied_carbon unit= "kgCO2/ton"> 3910 </embodied_carbon>
+            <recycling_ratio>  0.98</recycling_ratio>
+            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
+            <company_recycling_ratio> 1 </company_recycling_ratio>
+            <landfilling_ratio> 0.02 </landfilling_ratio>
+            <cost unit= "...."> .... </cost>
+        </material>
+    </building_materials>
     <fuels>
         <fuel id="1" name= "Black_coal">
             <carbon_emission_factor unit= "kgCO2/ kWh" > 0.32 </carbon_emission_factor>
@@ -167,393 +556,4 @@
             <carbon_emission_factor unit= "kgCO2/kWh"> 1.00000 </carbon_emission_factor>
         </vehicle>
     </vehicles>
-    <building_materials>
-        <material type = "brick" id="1"  name= "clay brick">
-            <density unit= "ton/m3"> 1.8 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 560 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0.7 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "brick" id="2"  name= "light clay brick">
-            <density unit= "ton/m3"> 1.2 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 310 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0.7 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "brick" id="3"  name= "refractory">
-            <density unit= "ton/m3"> 2 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0.7 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "brick" id="4"  name= "sand-lime brick">
-            <density unit= "ton/m3"> 1.4 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 300 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0.3 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0.7 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="1"  name= "light weight expanded clay">
-            <density unit= "ton/m3"> 1.6 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 900 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="2"  name= "lightweight Expanded perlite">
-            <density unit= "ton/m3"> 1.6 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2340 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="3"  name= "lightweight expanded vermiculite">
-            <density unit= "ton/m3"> 1.6 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1570 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="4"  name= "lightweight polystyrene">
-            <density unit= "ton/m3"> 1.4 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1840 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="5"  name= "lightweight pumice">
-            <density unit= "ton/m3"> 1.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 410 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="6"  name= "concrete 20 MPa">
-            <density unit= "ton/m3"> 2.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 160 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="7"  name= "concrete 25 MPa">
-            <density unit= "ton/m3"> 2.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="8"  name= "concrete 30-32 MPa">
-            <density unit= "ton/m3"> 2.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 230 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="9"  name= "concrete 35 MPae">
-            <density unit= "ton/m3"> 2.4 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="10"  name= "concrete 50 MPa">
-            <density unit= "ton/m3"> 2.4 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 280 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="11"  name= "concrete block">
-            <density unit= "ton/m3"> 2.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 170 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "concrete" id="12"  name= "concrete roof tile">
-            <density unit= "ton/m3"> 1.2 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "glass" id="1"  name= "flat glass, coated">
-            <density unit= "ton/m3"> 2.58 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2660 </embodied_carbon>
-            <recycling_ratio> 0.95 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.05 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "glass" id="2"  name= "glass fibre">
-            <density unit= "ton/m3"> 2.58 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 5260 </embodied_carbon>
-            <recycling_ratio> 0.95 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.05 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="1"  name= "cellulose fibre">
-            <density unit= "ton/m3"> 0.06 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1760 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="2"  name= "cork slab">
-            <density unit= "ton/m3"> 0.122 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3080 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="3"  name= "polystyren foam">
-            <density unit= "ton/m3"> 0.028 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3180 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="4"  name= "polystyrene 10% recycled">
-            <density unit= "ton/m3"> 0.024 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 5140 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="5"  name= "stone wool">
-            <density unit= "ton/m3"> 0.1 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 6040 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="6"  name= "foam glass">
-            <density unit= "ton/m3"> 0.3 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 5380 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "insulation" id="7"  name= "glass wool mat">
-            <density unit= "ton/m3"> 0.032 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2150 </embodied_carbon>
-            <recycling_ratio> 0.9 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "wood" id="1"  name= "fiberboard, hard">
-            <density unit= "ton/m3"> 0.9 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3420 </embodied_carbon>
-            <recycling_ratio> 0.6 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.4 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "wood" id="2"  name= "three layerd laminated board">
-            <density unit= "ton/m3"> 0.7 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1430 </embodied_carbon>
-            <recycling_ratio> 0.6 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.4 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "wood" id="3"  name= "fibreboard, soft">
-            <density unit= "ton/m3"> 0.65 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2780 </embodied_carbon>
-            <recycling_ratio> 0.6 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.4 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "wood" id="4"  name= "plywood">
-            <density unit= "ton/m3"> 0.72 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2190 </embodied_carbon>
-            <recycling_ratio> 0.6 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.4 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="1"  name= "acrylic filler">
-            <density unit= "ton/m3"> 1.43 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1070 </embodied_carbon>
-            <recycling_ratio> 0 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0 </company_recycling_ratio>
-            <landfilling_ratio> 1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="2"  name= "anhydrite floor">
-            <density unit= "ton/m3"> 1.43 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 240 </embodied_carbon>
-            <recycling_ratio> 0 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0 </company_recycling_ratio>
-            <landfilling_ratio> 1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="3"  name= "base plaster">
-            <density unit= "ton/m3"> 1.43 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 430 </embodied_carbon>
-            <recycling_ratio> 0 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0 </company_recycling_ratio>
-            <landfilling_ratio> 1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="4"  name= "cement cast plaster floor">
-            <density unit= "ton/m3"> 1.43 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 340 </embodied_carbon>
-            <recycling_ratio> 0 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0 </company_recycling_ratio>
-            <landfilling_ratio> 1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="5"  name= "cement tile">
-            <density unit= "ton/m3"> 1.2 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 440 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="6"  name= "ceramic tile">
-            <density unit= "ton/m3"> 2.1 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1410 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="7"  name= "clay plaster">
-            <density unit= "ton/m3"> 1.43 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 250 </embodied_carbon>
-            <recycling_ratio> 0 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 0 </company_recycling_ratio>
-            <landfilling_ratio> 1 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="8"  name= "fiber cement corrugated slab">
-            <density unit= "ton/m3"> 1.44 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 1480 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="9"  name= "fiber cement facing tile">
-            <density unit= "ton/m3"> 1.44 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 2220 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "wood" id="10"  name= "gypsum fibreboard">
-            <density unit= "ton/m3"> 1.27 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3960 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "covering" id="11"  name= "gypsum plaster board">
-            <density unit= "ton/m3"> 1.15 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 760 </embodied_carbon>
-            <recycling_ratio> 0.8 </recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.2 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "metal" id="1"  name= "steel">
-            <density unit= "ton/m3"> 8 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3160 </embodied_carbon>
-            <recycling_ratio>  0.98</recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.02 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "metal" id="2"  name= "aluminium">
-            <density unit= "ton/m3"> 2.7 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 5370 </embodied_carbon>
-            <recycling_ratio>  0.98</recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.02 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-        <material type = "metal" id="3"  name= "reinforcing steel">
-            <density unit= "ton/m3"> 7.85 </density>
-            <embodied_carbon unit= "kgCO2/ton"> 3910 </embodied_carbon>
-            <recycling_ratio>  0.98</recycling_ratio>
-            <onsite_recycling_ratio> 0 </onsite_recycling_ratio>
-            <company_recycling_ratio> 1 </company_recycling_ratio>
-            <landfilling_ratio> 0.02 </landfilling_ratio>
-            <cost unit= "...."> .... </cost>
-        </material>
-</building_materials>
 </library>
\ No newline at end of file