Steven from Atlanta, Ga writes
1940s timber framed home on brick piers. Cavities were drilled through top side of main (center) 6"x6" house beam to accommodate plumbing, leading to rot and cracking via combination of weakened structure and leaking moisture. Beam is now supported beneath with two 4"x4" posts and bracing timbers. Large cavity with rotted wood remains extending from drilled area, about 2-3" deep, 8"-12" long. Leaks are fixed. Need to prevent rot/mold, harden remaining beam and fill cavity. Accessible from below via crawlspace.
We would recommend using Boracare with Moldcare for the wood in the area. This will kill and prevent mold and rot in raw wood. Not only does Bora-Care with Mold-Care treat mold, but it also acts as a surface protectant, killing all forms of fungi, sanitizing and disinfecting the treated area. In addition, wood treated with Bora-Care with Mold-Care will render wood impervious to termites, powderpost beetles and othe wood-destroying insects. This one gallon container treats approximately 3600 lineal feet of 2x4 dimensional lumber or 1250 square feet of a crawl space or attic when mixed at the labeled rate of 1 gallon of bora-care with mold care and 5 gallons of water. We would also recommend replacing any rotted wood and using a sealant or paint on the wood after application. This product will last for the life of the wood as well.
Answer last updated on: 12/27/2016
