What is the difference between Damp proofing and waterproofing?
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The thing they have in common is that the wall has earth against it on one side and enclosed space on the other.
Waterproofing is required where there is a high water table or reason to believe that wet soil conditions will exist.
We tried to waterproof even where damproof was called for. You never know what the future holds.
irc 09 dampproof
1. Bituminous coating.
2. Three pounds per square yard (1.63 kg/m2) of acrylic modified cement.
3. One-eighth inch (3.2 mm) coat of surface-bonding cement complying with ASTM C 887.
4. Any material permitted for waterproofing in Section R406.2.
5. Other approved methods or materials.
irc 09 waterproof
1. Two-ply hot-mopped felts.
2. Fifty five pound (25 kg) roll roofing.
3. Six-mil (0.15 mm) polyvinyl chloride.
4. Six-mil (0.15 mm) polyethylene.
5. Forty-mil (1 mm) polymer-modified asphalt.
6. Sixty-mil (1.5 mm) flexible polymer cement.
7. One-eighth inch (3 mm) cement-based, fiber-reinforced, waterproof coating.
8. Sixty-mil (0.22 mm) solvent-free liquid-applied synthetic rubber.
We still never refered to a wall or foundation as waterproof even if we followed waterproofing protocol