Flat Roof Into Pitched Roof Detail

A pitched roof is more expensive.

Flat roof into pitched roof detail.

A selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. A roof is considered to be flat when it is of a slope of 1 5o to the horizontal. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span. While that s the easiest route it s certainly not your only option.

Instead the roof must be done with a modified bituminous membrane e g. For instance where flat roofs are converted into pitched roofs during refurbishment projects because the latter allegedly exhibit better insulation characteristics or where flat roofs are not. Flat roofs also don t last as long. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.

For slopes less than 9 5 we cannot install roof shingles. To discuss your project in more detail please contact your local area manager. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Armourvalley or other materials like epdm pvc or tpo covering.

According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof. Some will choose to keep their pre existing flat roof on their structure underneath the new pitched roof to save removal costs but others might not be able to consider that option as their building couldn t support the weight of two roofs. A flat roof usually consists of the following. Flat roof construction manual materials design applications.

Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. A 900 square foot flat roof in the san francisco area made of concrete tiles costs. Warm roof to pitched roof junction mansard. Waterproof membrane to prevent water penetrating the structure and interior of the building.

It has a slope of 2 3. Flat roof connected to pitch roof. The process for converting a flat roof into a pitched roof depends on your individual structure and your individual needs there is no one size fits all option. It is a significant renovation if you are converting from flat to pitched.