|
|
|
|
|
|
|
|
|
Damp course. dampproofing 1. a treatment of concrete or mortar to retard the passage or absorption of water, or water vapor, either by applying a suitable dalan 296 dais dampproofing, 3 damper, 1 butterfly damper, 1 coating to exposed surfaces or by using
|
|
|
|
|
|