Flat Roof Soffit Overhang

The goal is to balance the amount of solar heat gain and amount of shading.

Flat roof soffit overhang.

Most homes these days have boxed soffits but i find that a bit of creativity at the roof edge goes a long way toward style. Even if most people don t register what it is that makes a home seem special using a sloped soffit is an easy way to make a home look old or built with more craftsmanship than typical new homes. When you do use a flat soffit make sure to include a raised heel on the truss. Soffits are commonly constructed from fiber cement panels metal panels stucco vinyl panels or wood sheathing.

The default in eave design is a flat soffit. Proceed with extreme caution when using a flat soffit. The length of the overhang depends primarily on the climate. This video will.

Closed eaves with flat soffit and no raised heel. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. And once water has seeped in the rot spreads quickly because the wood stays soggy inside the dark dank space. These guidelines are useful in the construction of any gable or any cantilevered or flat roof.

Soffits a soffit encloses the underside of sloped or flat roof overhangs. See below i need to acknowledge there are some good reasons in some places to not have a large overhang. Soffited eaves and gable overhangs are susceptible to water damage caused by ice dams improper flashing torn shingles and faulty gutters. Overhangs are common in most house designs providing protection against both wind and rain.

While flat soffits work well in some situations in most they result in pork chop eave returns. Metal panels untreated wood panels and vinyl attic vents figure 1. The exposed timber rafters and decking are susceptible to ignition and. Damage is also caused by birds and squirrels nesting inside eaves.

Closed eaves with flat soffit and raised heel. To determine the number of squares of soffit required measure the under eave areas and multiply the length by the width for each overhang. Add up the total of all overhangs and divide the total by 100 to determine the number of squares.