Flat Roof Into Pitched Roof Detail

It is a significant renovation if you are converting from flat to pitched.

Flat roof into pitched roof detail.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Additional valleys angles and gables can be built into converted roofs as well but adding these elements may affect your project. While that s the easiest route it s certainly not your only option. One of the first things you need to consider before converting your flat roof into a pitched roof is the reasoning behind the transformation.

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. A 900 square foot flat roof in the san francisco area made of concrete tiles costs. 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. This green roof details post includes excerpts and details from our book understanding architectural details residential.

Most homeowners choose to convert a flat roof to a pitched one using a simple trussed roof with two angled planes. Of course you don t need to live in a modern house to deal with a flat roof. However flat roofs require much more aggressive and consistent maintenance than a pitched roof. Introduction to green roof details a green or living roof is a flat or low pitched roof with a layer of planting over the waterproofing.

Flat roofs also don t last as long. Flat roofs can be prone to leakages so if excess moisture is your main concern you may be better off looking for a more durable long lasting epdm roofing membrane. 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. According to improve net s online roofing calculator a flat roof is significantly cheaper than a pitched roof.

A pitched roof is more expensive. Depending on the climate your flat roof will only last between 15 and 30 years if well maintained. A very important detail is where the flat roof is connecting the pitch roof.