Installing Cedar Shingles Over Existing Siding

The shingles should also be installed to provide triple coverage with three layers of shingles covering the wall.

Installing cedar shingles over existing siding.

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. 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. 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 contractor who successfully bid for the job has installed a layer of 1 4 in. Fanfold insulation over the old shingles and is busy stapling up the new ones even as neave writes to fine homebuilding. For example 16 inch long shingles should be installed with about 5 inch exposures.

How to install cedar shingle siding step 1. Install the windows and door jambs so you can trim the doors windows and corners of the house with wood trim. 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. Define the bottom.

Furring strips help prevent water from migrating from the brick to the back side of the shake shingles. They also provide a flat surface for installing the cedar shingles.