Cement Board Siding Over T111

If you want to try to match your t 111 to a brand of fiber cement siding you ll have to measure the width of the pattern and do some research.

Cement board siding over t111.

Inspect the t1 11 siding carefully. You can put tyvek over the the existing t111 siding and then add your hardieplank over that. Weatherside fiber cement siding is the one and weatherside fiber cement siding is the one and only solution for replacing or repairing old asbestos siding shingles. In addition there are many instances of osb materials being used in ways clearly not recommended such as on roofs and exterior decking.

Just follow the manufacturer s installation instructions. Different manufacturers make different configurations of t 111. I will be installing hardie plank siding over the t 111 using it as sheeting. Make sure that the entire surface is clean and dry.

15 felt is a poor wrb at best so my gut instinct is that it is a good idea to throw a layer of 30 felt on before siding it. It is available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. Replace any sections that show rot or decay with either new t1 11 or plywood of the same thickness. Now the kicker is whether or not to run 30 felt over the t 111 before siding.