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Eco friendly
building materials
Conference on Green Homes
Member SecretaryLaurie Baker Centre
for Habitat Studies (LBC)
Green Building Congress,
1st November , 2012
Ar. PB SajanJt. Director
COSTFORD&
Residence of
Ar. P B Sajan & Ar. Shailaja Nair
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SITE PLAN
• Sloping site on
top of a hill
• 8.5 cents
(345 sqm)
Mud (without stabilisers)
Coconut tree
Kattadi (Casuarina) Poles
Bamboo
Country burnt Brick
Reused Wood
Reused Roof Tiles
Mango tree Wood
Random Rubble
MATERIALS USED
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TREATMENT OF MATERIALS
Bamboo
Kattadi (Casuarina) Poles
Coconut Tree
Mango tree wood
LOCAL BAMBOO
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Treatment tank
Preservative preparation
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Holes in nodes for proper preservative
penetration
Smoothening of nodes
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KATTADI (CASUARINA) POLES
Preparation of Kattadi poles
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Treated Kattadi pole
COCONUT TREE
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Clearing of outer layer of coconut trunk
Coconut trunks are immersed in
preservative
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Treated Coconut Trunks
In Construction
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R.R. masonry in mud mortar
FOUNDATION
WALL
Mud :Cob construction
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MUD WALL
MUD WALL -Interior
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BAMBOO
Bamboo Beam & Floor
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Finishing of bamboo floor
Bamboo Beam & Floor
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Bamboo in Openings
Bamboo in Openings
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COCONUT TREE TRUNKS
Smoothened coconut trunk
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Coconut Trunk Pillar
Coconut Trunk Pillar
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Coconut Beam
KATTADI (Casuarina) POLE
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Kattadi Poles - Roof
Kattadi Poles - Roof
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Kattadi Poles - Roof
REUSED WOOD
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Reused Windows
Reused ceiling planks as floor finish
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Floor
Reused wood - Beam
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Reused Wood
Reused Doors
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Mango wood - stair planks
Mango wood - stair planks
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Comparison of Material Consumption
Material Source KM
Diesel/
Trip
(Ltr)
QuantityMaterial
Saved
Qty of
Diesel
Saved
(Ltr)
Brick Tamilnadu 174 34.8 5000 24317 169.25
Sand Tamilnadu 174 34.8 6 90 522
20mm and 40mm
broken stoneVarkala 80 16 6 55 146.67
Steel Coimbatore 920 184 16000 3866 44.459
Cement Thirunalveli 320 64 200 1099 351.68
Total 1234
Diesel saving
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Energy Saving
ITEMEnergy saved
per no.Total Nos.
TOTAL ENERGY
SAVED (MJ)
BRICK 3.75 (MJ/NOS) 24317.00 91188.75
CEMENT 5.85 (MJ/KG) 54950.00 321457.50
STEEL42 (MJ/KG)
3866.00 162372.00
TOTAL 575018.25 MJ
Walking the Talk… Ar. PB SajanCOSTFORD & LBC
Thank you