Is pour foam a practical solution for this issue?
There is a niche above my covered entry way. I guess you could think of it as a small flat roof or a cold floor (with drywall on the conditioned slide and sheathing on the exterior) . Because of a miscommunication, the insulation contractor did not foam this area while treating other areas of the house.
My energy rater suggests drilling a series of 2 inch holes in the drywall and using a kit to spray foam the entry way from above. I am fine with this idea but am wondering if pourable foam would do a better job of filling the void. (Someone on GBA asks a similar question but received no comments.) Online sources offer a variety of open and close cell formulations. I image you have to be careful about mixing the two parts correctly and completing your pour before the reaction gets too far along.
Is this a bad idea? Should I stick a more traditional solutions such as a Touch and Seal kit?
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