Flat Roof Into Pitched Roof Detail

Flat roof construction manual materials design applications.

Flat roof into pitched roof detail.

It has a slope of 2 3. A pitched roof is more expensive. A flat roof isn t actually flat. For slopes less than 9 5 we cannot install roof shingles.

It is a significant renovation if you are converting from flat to pitched. Warm roof to pitched roof junction mansard. Flat roof connected to pitch roof. It appears to be flat but it needs a slope to allow the water to drain from the roof.

A selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. 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. To discuss your project in more detail please contact your local area manager. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained.

Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. Flat roofs also don t last as long. 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. Although flat roofs are cheaper to build than pitched roofs they have a shorter life span.

Instead the roof must be done with a modified bituminous membrane e g. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Waterproof membrane to prevent water penetrating the structure and interior of the building. According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof.

While that s the easiest route it s certainly not your only option. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. 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. Armourvalley or other materials like epdm pvc or tpo covering.