Exterior Below Grade Foundation Insulation at Exterior

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Exterior Below Grade Foundation Insulation. It is installed on the interior, exterior, or is. I’m curious what the group thinks about exterior below grade spray foam.

Example of exterior insulation belowgrade transition
Example of exterior insulation belowgrade transition from www.researchgate.net

Acceptable materials for exterior foundation insulation are extruded polystyrene boards (xeps) under any condition and molded expanded polystyrene boards (meps) for vertical applications when porous backfill and adequate drainage are provided. Foam applied to the edge of the slab. Comfortboard® 80 rigid mineral wool continuous insulation sheathing board.

Example of exterior insulation belowgrade transition

On building foundations, the insulation (whether eps or xps) is installed over the damp/waterproofing, after that layer has adequately cured. Finally, adding insulation when you’re already excavating your foundation to do waterproofing is a small incremental cost compared to doing the insulating on it own. However, it is important to condition the membrane at a temperature of at least 10 °c (50 °f) before installation. If this product could be used as the exterior insulation, that would be ideal.