This guide breaks down why calcium silicate board seams frequently bulge or crack, and shares a permanent repair solution using epoxy AB adhesive and crack-resistant mesh to eliminate recurring ceiling damage for good. This guide breaks down why calcium silicate board seams frequently bulge or crack, and shares a permanent repair solution using epoxy AB adhesive and crack-resistant mesh to eliminate recurring ceiling damage for good. This guide breaks down why calcium silicate board seams frequently bulge or crack, and shares a permanent repair solution using epoxy AB adhesive and crack-resistant mesh to eliminate recurring ceiling damage for good. This guide breaks down why calcium silicate board seams frequently bulge or crack, and shares a permanent repair solution using epoxy