Matt has rigged up a test to see if Closed Cell Spray Foam will indeed add strength to a wall cavity!
We used https://accellapolyurethane.com/ for the SPF in this test.

Matt has rigged up a test to see if Closed Cell Spray Foam will indeed add strength to a wall cavity!
We used https://accellapolyurethane.com/ for the SPF in this test.