Installing Cedar Shingles Over Existing Siding

For example 16 inch long shingles should be installed with about 5 inch exposures.

Installing cedar shingles over existing siding.

Furring strips help prevent water from migrating from the brick to the back side of the shake shingles. How to install cedar shingle siding step 1. Fanfold insulation over the old shingles and is busy stapling up the new ones even as neave writes to fine homebuilding. They also provide a flat surface for installing the cedar shingles.

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. Why siding over existing siding is a bad move. The most common practice when installing vinyl siding over existing wood shingles or clapboard is to first put up rigid foam or fan fold. Begin the installation by wrapping the house with a waterproof membrane either 15 to 30 pound felt or.

The shingles should also be installed to provide triple coverage with three layers of shingles covering the wall. These products are designed primarily to pad imperfections on the walls so the new layer of siding will lay flatter. To achieve this the exposures should be slightly less than one third the length of the shingle. First install wood furring strips to nail the cedar shingles onto.

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. Define the bottom.