Venting Low Pitch Roof

Reshingling a low slope roof and a few things not to do this article covers reshingling a low sloped roof and a few things you should avoid when shingling such a roof.

Venting low pitch roof. Visiting my sister marlene in thunder bay this summer 2012 there was as usual a project like every other time. The top of the roof meets the wall of the house and the 2 sides also meet walls. For this design to work well on a low sloped not dead flat roof an outside air inlet is provided by a soffit or roof overhang built at the low end of the roof and a roof cavity air vent outlet is provided along the high or up slope end of the roof using a built up half ridge vent. In a cold climate the primary purpose of ventilation is to maintain a cold roof temperature to avoid ice dams created by melting snow and to vent any moisture that moves from the conditioned.

So it is essentially boxed in on 3 sides. The intent of roof venting varies depending on climate but it is the same if you re venting the entire attic or if you re venting only the roof deck. I m trying to vent a 1 12 roof that has not been vented. About 12 x 18.

Smartvent low slope application smartvent can be modified to provide intake ventilation for new roofs or re roofs through the fascia board for low slope roof with less than a 4 12 pitch. Although surprisingly there was only one leak in the old roof. November 19 2014 9 08pm 1.