Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2020 | 08/14/2020 - 14:24 | 4.0302.5e | Installation | Install rigid insulation continuously over entire accessible area to prescribed R-value in full contact with the floor joists without gaps, voids, or misalignments If installing multiple layers, offset seams at least 12" and seal the seams of each layer before applying the next Where rigid foam plastics are used, in no case will the final thickness exceed the manufacturer's tested thickness used to determine the maximum 75 flame spread and 450 smoke-development index when tested to ASTM E84 or UL 723 |
Continuous and contiguous thermal boundary that prevents excessive vapor intrusion |
Black Line | ||
| Version 2020 | 08/14/2020 - 14:24 | 4.0302.5e | Installation | Install rigid insulation continuously over entire accessible area to prescribed R-value in full contact with the floor joists without gaps, voids, or misalignments If installing multiple layers, offset seams at least 12" and seal the seams of each layer before applying the next Where rigid foam plastics are used, in no case will the final thickness exceed the manufacturer's tested thickness used to determine the maximum 75 flame spread and 450 smoke-development index when tested to ASTM E84 or UL 723 |
Continuous and contiguous thermal boundary that prevents excessive vapor intrusion |
Black Line |