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ASTM International
(www.astm.org) |
|
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CSC – Construction Specification Canada
(www.csc-dcc.ca) |
|
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OBEC – Ontario Building Envelope Coucil
(www.obec.on.ca) |
|
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PGI – PVC Geomembrane Institute
(http://pgi-tp.cee.uiuc.edu) |
|
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RCI – Roof Consultants Institute
(www.rci-online.org) |
|
 |
SPRI – Single Ply Roofing Industry
(www.spri.org) |
|
 |
SWRI – Sealant, Waterproofing & Restoration Institute
(www.swrionline.org) |
|
 |
USGBC – U.S. Green Building Council
(www.usgbc.org) |
|
 |
Green Roofs for Healthy Cities
(www.greenroofs.org) |
|
 |
CRCA – Canadian Roofing Contractors’ Association
(www.roofingcanada.com) |
|
 |
NRCA – National Roofing Contractors Association
(www.nrca.net) |
|
 |
OIRCA – Ontario Industrial Roofing Contractors Association (www.ontarioroofing.com) |
