09 Apr '13, 4am

Options for handling a porch beam penetration into a wall cavity #green

Looking for options as to how best handle a front porch beam penetration into the exterior wall cavity to rest on two 2x4's for support. The basic wall construction is 1.5" of Huber's Zip R6.6 sheathing, 2x4 studs & R15 blown insulation. Location is zone 5 (central OH). The porch beam was installed through the wall cavity and is now resting at the end of the 2x4's it's supported by ... essentially no room for insulation at present at the end of it as it extends into the wall of a Study. There is a similar condition on the opposite side of the porch, but that beam terminates within a 2' soffit that runs the perimeter of a dining room. The builder's expressed some concern that reducing the amount of beam on the 2x4's could weaken it's ability to support the porch roof properly and would require re-engineering to pass City review. He suggested hitting the area surrounding the...

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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