Flat Roof Description

Today s variety of flat or low slope commercial roofing options roof pitches ranging from 12 to 3 12 is no longer simple and has grown considerably in the last 50 years.

Flat roof description.

Original design had a tar and white gravel roof with soffit vents in the. A flat roof is a roof that is completely or almost level. Of course you don t need to live in a modern house to deal with a flat roof. I didn t see my roof style in the article s descriptions.

Roof shapes differ greatly from region to region. Pros and cons for flat roof materials all three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof. 14 install repair or replace single ply roofing systems using waterproof sheet. 12 install partially overlapping layers of material over roof insulation surfaces determining distance of roofing material overlap using chalk lines gauges on shingling hatchets or lines on shingles.

I have a mid century modern home in southern california with a 4 12 pitch and no attic space. Usages vary slightly from region to region or from one builder or architect to another. A flat roof is a roof which is almost level in contrast to the many types of sloped roofs the slope of a roof is properly known as its pitch and flat roofs have up to approximately 10. The main factors which influence the shape of roofs are the climate and the materials available for roof structure and the outer covering.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. Flat roof designing buildings wiki share your construction industry knowledge. Flat roofs are easier to construct than pitched roofs and require fewer building materials keeping costs down.

However whilst they are described as flat almost all flat roofs are actually laid to a fall to ensure that rainwater can run off to the lower side. As the name implies a truly flat roof would have no pitch which could lead to the obvious problem of rainwater pooling up and creating a stagnant spa area for mosquitoes bacteria mold etc. The earliest roofs constructed by man were probably thatched roofs that were made of straw leaves. Roof terminology is also not rigidly defined.

The goal of this article is to help building owners architects and contractors decide which commercial roofing options are right for each unique project. 13 install vapor barriers and or layers of insulation on the roof decks of flat roofs and seal the seams. Roof covering of the top of a building serving to protect against rain snow sunlight wind and extremes of temperature roofs have been constructed in a wide variety of forms flat pitched vaulted domed or in combinations as dictated by technical economic or aesthetic considerations. Typically they are designed to have a minimum fall of 1 40 which given on site inaccuracies should.