Typical Residential Flat Roof Detail

From there the flat roof system you choose will determine the materials you apply.

Typical residential flat roof detail.

The insulation is placed below the waterproof covering and is either mechanically fixed or bitumen bonded on to the top of the deck. And their horizontal lines abound in the west and in urban areas. The parapet roof by far the most common type of flat roof isn t actually flat at all. This will help you create a flat roof framing plan.

However over the last few decades new and advanced materials have been developed. When framing a flat roof you will need to create a slight incline. The sandwich warm deck roof is the most common type of flat roof. Andrew t boyne architect.

But flat roofs take a pounding from harsh weather which is why they rarely last as long as a good sloped roof. A classic flat roof is either almost completely level or has a very slight pitch of 3 in 12 inches or less. Of all these membrane types epdm synthetic rubber is the most common single ply membrane roof material in both residential and commercial use. A parapet roof involves a typical sloped roof that is concealed behind a parapet wall so that it gives the impression of being flat.

Just enough slope to drain water but also flat enough to be a problem if not constructed properly. Cold roof insulation between rafters wnapor barrier on warm side below orw sheatiiing roofing roofing 2 x 8 sleepers notched for vent aligned wi rafters flashing over rooang fascia sheatiiing 2 x 4 sleepers aligned w rafters provide. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Some roofs actually slope in several directions ensuring optimal water runoff.

You can do this with a foam layer that exactly fits your roof. Of course flat roofs are not flat but have a very slight roof pitch of between 1 4 to 1 2 per foot. Most flat roofs are typically not as long lasting or durable as sloped ones because the latter shed snow and rain a lot quicker. Flat roofs are always built at a slight incline at least 1 8 inch per foot.

Other roof protrustions sothat notiiing obstructs tiieflow ofair from eave to ridge. This flat roof system is still used in some residential applications because of its affordability and fire resistance. Underneath the basics flat roofs are usually constructed with a ceiling nailed to joists which support a deck usually wood in residential construction a vapor barrier insulation and a roof board.