- ThermaRim Insulated Rim Board and its joining member must have continuous structural support
- A 6" minimum width sill plate is required
- See APA data file for design properties, span lengths and further installation details
- ThermRim Insulated Rim Board is made with APA Rated Rim Board per standard PRR-401 and is ideal for difficult to insulate areas (prime heat loss areas)
- ThermaRim is designed for rim board and starter joist applications only. Not recommended for use as a structural joist, rafter, header or ledger
- Caulk or seal all connections and joints to minimize heat loss
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