Detail ID
2.0401.3
Topic
Radon
Subtopic
Radon Precautionary Measures
Desired Outcome
Reduce potential for radon to enter the living space through foundation drain penetrations.
Single Family Site-Built Housing
Manufactured Housing
Multifamily Housing
Specifications
| Specification | Objective |
|---|---|
|
Seal around the perimeter of all drain fittings that penetrate a concrete slab using urethane caulk or equivalent sealing material Sealant must not affect the ability of the drain to function and be compatible with the surfaces it contacts |
Durable, airtight seals around functional drain fittings |
| Specification | Objective |
|---|---|
|
Install a one way valve in all untrapped, below grade drain fittings that does not interfere with appropriate drain function |
Prevent air infiltration from below grade drains without affecting drain function |