Specification History
| SWS Version | Created | Specification ID | Title | Specification | Objective | Supporting Materials | Rationale | Status |
|---|---|---|---|---|---|---|---|---|
| Version 2025 | 03/02/2021 - 11:22 | 2.0401.1g | Foundation Connections | Extend soil-gas retarder a minimum of 6" up all non air-permeable foundation walls and piers. (i.e., solid core block, brick, or poured concrete) Seal it to all foundation walls and piers with a compatible material that creates an airtight, durable seal Use mechanical foundation connections where feasible Do not install in contact with non-treated structural wood Extend soil-gas retarder over all air-permeable foundation walls or piers (i.e., hollow core block, brick, or rubble) except for required termite inspection gap Do not install in contact with non-treated structural wood |
Cover all potential entry points of radon with soil-gas retarder without compromising wooden foundation material |
Black Line | ||
| Version 2025 | 03/02/2021 - 11:22 | 2.0401.1g | Foundation Connections | Extend soil-gas retarder a minimum of 6" up all non air-permeable foundation walls and piers. (i.e., solid core block, brick, or poured concrete) Seal it to all foundation walls and piers with a compatible material that creates an airtight, durable seal Use mechanical foundation connections where feasible Do not install in contact with non-treated structural wood Extend soil-gas retarder over all air-permeable foundation walls or piers (i.e., hollow core block, brick, or rubble) except for required termite inspection gap Do not install in contact with non-treated structural wood |
Cover all potential entry points of radon with soil-gas retarder without compromising wooden foundation material |
Black Line | ||
| Version 2025 | 03/02/2021 - 11:22 | 2.0401.1g | Foundation Connections | Extend soil-gas retarder a minimum of 6" up all non air-permeable foundation walls and piers. (i.e., solid core block, brick, or poured concrete) Seal it to all foundation walls and piers with a compatible material that creates an airtight, durable seal Use mechanical foundation connections where feasible Do not install in contact with non-treated structural wood Extend soil-gas retarder over all air-permeable foundation walls or piers (i.e., hollow core block, brick, or rubble) except for required termite inspection gap Do not install in contact with non-treated structural wood |
Cover all potential entry points of radon with soil-gas retarder without compromising wooden foundation material |
Black Line |