Installing Cedar Shingles Over Existing Siding

Furring strips help prevent water from migrating from the brick to the back side of the shake shingles.

Installing cedar shingles over existing siding.

These products are designed primarily to pad imperfections on the walls so the new layer of siding will lay flatter. Even though most reputable contractors will never install siding over existing siding there are knuckleheads out there that will say you can do it and it s not a problem. Why siding over existing siding is a bad move. Begin the installation by wrapping the house with a waterproof membrane either 15 to 30 pound felt or.

They also provide a flat surface for installing the cedar shingles. The facelift will certainly brighten the appearance of the house while entombing the paint but it s the installation that has neave concerned. Install the windows and door jambs so you can trim the doors windows and corners of the house with wood trim. The shingles should also be installed to provide triple coverage with three layers of shingles covering the wall.

For example 16 inch long shingles should be installed with about 5 inch exposures. Fanfold insulation over the old shingles and is busy stapling up the new ones even as neave writes to fine homebuilding. New white cedar shingles will cover up a layer of painted shingles which given the age of the house no doubt are contaminated with lead based paint. The most common practice when installing vinyl siding over existing wood shingles or clapboard is to first put up rigid foam or fan fold.

Define the bottom. To achieve this the exposures should be slightly less than one third the length of the shingle.