Charlie: Michael in Pearland writes to us. He wants to know about, can Hardie planks, Tom, be installed over T-111 siding if the rotten part is removed as long as the Tyvek is placed between them?
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Tom: Yes. It’s a perfect application for it because T-111 is nothing more than a textured plywood, and a plywood makes a great sheathing. Get rid of the rot. Get some regular CDX plywood, the same thickness as your T-111, fill in the gaps, put the Tyvek on there, put the Hardie on there. You got a good solid backing. It’s really a great way to go.