Flat Roof Into Pitched Roof Detail

Warm roof to pitched roof junction mansard.

Flat roof into pitched roof detail.

According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained. Waterproof membrane to prevent water penetrating the structure and interior of the building. 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.

A pitched roof is more expensive. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. A roof is considered to be flat when it is of a slope of 1 5o to the horizontal. Armourvalley or other materials like epdm pvc or tpo covering.

For slopes less than 9 5 we cannot install roof shingles. It appears to be flat but it needs a slope to allow the water to drain from the roof. A flat roof isn t actually flat. It is a significant renovation if you are converting from flat to pitched.

A 900 square foot flat roof in the san francisco area made of concrete tiles costs. A selection of roof detail drawings including flat roof details pitched roof details mansard roof detail parapet verge ridge and eaves details. It has a slope of 2 3. 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.

A flat roof usually consists of the following. Flat roof connected to pitch roof. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. 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. Flat roof construction manual materials design applications. Flat roofs also don t last as long. Instead the roof must be done with a modified bituminous membrane e g.