How To Keep Wood Siding From Cracing

Install exhaust fans in bathrooms.

How to keep wood siding from cracing.

Line up the ends and using the old piece as a guide mark the new clapboard with a utility knife. Scoring prevents the wood from chipping when you cut it. Use a putty knife to gouge out any rotten wood or loose debris in the crack. This article discusses the causes and cure of wood siding failures including when siding is installed over rigid foam insulation how to prevent siding cupping siding nail pops siding splitting siding separation or misalignment at butt joints and other wood clapboard and hardboard siding failures.

This will prevent the wood from breathing the natural process by which the wood absorbs or releases moisture to match environmental conditions. Place a full length piece of the damaged siding on the face of the replacement. When wood siding is completely covered with paint water has a difficult time getting into the fibers. Use a good dehumidifier in the basement or in any room of the house subject to high humidity.

Sand 3 inches past the end of the crack. The paint job on the replacement piece of siding will last a very long time if the painter can paint both the back and cut edges of the wood before it is installed. If you keep wood completely dry using this method it becomes dimensionally stable. If the siding is unpainted stick with epoxy filler it s.

Score the cut line with the utility knife guided by a square. Prolonged exposure to dry air is a major source of cracking in cedar. Sand the surface of the siding at the area of the crack with a sanding block. Make sure to remove any loose debris and sanding residue before applying the filler.

For cedar used indoors you can apply an impermeable coating of varnish or polyurethane to the wood. Use long horizontal strokes with the block instead of short vertical strokes. Wood siding failure diagnosis for siding installed over foam insulation. If the crack leaves deep crevices in the wall then it is best to fill the crack with epoxy or wood filler before painting.