Minimize ground moisture vapor and soil gas with a durable, effective vapor retarder
Specifications
| Specification | Objective |
|---|---|
|
Remove all debris that can cause injury or puncture ground vapor retarder (e.g., nails, glass, sheet metal screws, etc.) |
Minimize punctures |
| Specification | Objective |
|---|---|
|
Cover all exposed soil Extend ground vapor retarder a minimum of 6" up all foundation walls and piers, but do not install in contact with non-treated structural wood |
Create a continuous ground vapor retarder layer that does not compromise wooden foundation materials |
| Specification | Objective |
|---|---|
|
Select a 6-mil minimum ground vapor retarder of 0.1 perm or less |
Durable material selected |
| Specification | Objective |
|---|---|
|
Overlap seams a minimum of 12" with reverse or upslope lapping technique For wall to floor connection, install the wall vapor retarder under the ground vapor retarder |
Keep bulk moisture under ground cover |
| Specification | Objective |
|---|---|
|
Fasten ground vapor retarder to ground with durable fasteners |
Prevent movement of the ground moisture barrier |