Flat Roof With Overhangdetails

The siding underneath the overhang is known as the soffit.

Flat roof with overhangdetails. To these roofs and adjacent wood construc tion. The membrane proper must be kept in an unbroached condition with all edge conditions either above scupper or drain height until water runoff is complete. Metal roofs also require particular attention especially the length of flat metal roofs. The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope.

Soffits are commonly constructed from fiber cement panels metal panels stucco vinyl panels or wood sheathing. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. Chapter 9 2 wood. If the wind is.

The exposed timber rafters and decking are susceptible to ignition and embers and hot gases can enter the attic through. With composite siding such as boral s truexterior siding over a ventilated rain screen and with properly executed flashing at the windows and doors the walls on the fhb house will be able to handle rain just fine. The national roofing contractors association recommends structural panels for flat or low slope roofs but corrugated panels are used in some areas with no heavy snow. For homes built in the northern hemisphere i e.

Figures 9 7 and 9 8 show some conditions commonly encountered. Roof overhangs at the eaves and rakes protect the walls below from rain and sun. Roof overhangs are the amount that the roof hangs over the top of the siding in residential home construction. You will also incur additional costs because.

America and canada the most important windows and doors to keep in mind for any roof strategy are the south windows. 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. For example 4 12 pitch means 4 inches of rise in 12 inches of run. The tradeoff between solar heat gain and shading.

But are they really necessary. Corrugated panels are more prone to bend under heavy snow loads. Other roof protrustions sothat notiiing obstructs tiieflow ofair from eave to ridge.