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Duane Mackey

Latest from Duane Mackey

This is a simple plan graphically showing one of the best way to save energy in a house. Read more »

I design home additions. Knowing the pitch of a roof is a critical step in designing an addition or estimating roof areas for shingles, insulation and ventilation requirements. Figuring the roof area is a lot easier and safer with this tool. Read more »


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