Repair Wood Siding Dry Rot

The steps involve cutting away the rotten siding clearing out the old nails cutting the new siding to the appropriate length and fastening the siding as well as caulking it to make the siding watertight.

Repair wood siding dry rot.

The name can be misleading as dry rot occurs in moist conditions. Dry rot is a wood fungus that causes structural damage to timber. To learn how to repair wood siding remove rotted boards with a flat pry bar. If it goes in easily or feels spongy you likely have dry rot.

Boric acid is a powerful fungicide and can eradicate the rot causing fungi as long as they haven t penetrated more than 1 4 inch 0 64 cm into the wood. A minnesota contractor estimates that one out of eight homes will have dry rot under the existing siding and that repairs needed before new siding can be installed might cost 50 2 000 or more but average 200 500. The price increases for structurally significant areas such as floor joists which could cost 4 000 to 12 000 to replace. In some cases you may be able to repair the wood and other times it will require replacing the entire piece.

After you remove the rotted courses use a small hacksaw to cut any protruding nail shanks or if you have a very strong grip use a good pair of wire cutters. Pry off the rotted boards. Using 2 inch siding nails attach the new wood piece. Handyman outlines both techniques below to help you make the best decision.

The process of replacing rotten wood siding isn t difficult. Sprinkle boric acid across wood that shows signs of dry rot. If your home has wood siding examine the siding around and beneath the windows for signs of swelling or discoloration. Test for dry rot by poking the wood with a screwdriver.

Protect sound siding with a scrap piece of 1 4 in. If you suspect rot contact them immediately so they can perform a detailed inspection of your house and provide you with different options in repairing wood siding rot to prevent further moisture penetration wood rot or termite damage. The nails should be placed into each of the individual wall studs. If you ve caught an instance of dry rot early enough it can be stopped with boric acid.

Position the groove along the bottom part of the new wood piece onto the upper edge of the wood piece. If the damaged area is structural or the dry rot infestation is advanced the rotted wood must be removed and replaced. Place the new wood piece under the lower edge of the blank in the upper plank.