Flat Roof Framing Nz

Of course you don t need to live in a modern house to deal with a flat roof.

Flat roof framing nz.

Roof framing hip and gable roofs the roof structure was typically a nailed timber roof frame constructed on site in either a hipped or gabled configuration. Today flat roofs are used by architects for the same reasons that they became a cornerstone of modernist architecture. Off site roof framing consisted of prefabricated timber trusses while on site roof framing consisted of a framework of rafters ridgeboard or a ridge beam underpurlins and underpurlin struts and collar ties and cleats. See more ideas about flat roof roof roof construction.

This is a completion video of a flat roof framing. This will help you create a flat roof framing plan. The rafters of a hipped roof which span between the ridge board hip rafter or valley rafter and the wall framing top plate may be common hip valley and jack rafters. 3 inch rise per 12 run is a 3 12 pitch roof.

Vertical rise over horizontal run. In the u s it is defined by the rise in inches to a 12 run. Skillion or exposed rafter roofs were framed up on site. Flat roofs are always built at a slight incline at least 1 8 inch per foot.

Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. Enclosed flat roof framing and associated roof members h1 2 radiata pine douglas fir enclosed skillion roof framing and associated roof members h1 2 radiata pine douglas fir valley boards and boards supporting flashings for box gutters roof penetrations and upstands to roof decks h1 2 radiata pine douglas fir. When framing a flat roof you will need to create a slight incline. Some roofs actually slope in several directions ensuring optimal water runoff.

Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Contemporary designers frequently aim to produce the same clear and simplified forms that appeared at the beginning of the 20th century but are now free to use a wide range of new materials and construction techniques that reflect present day technology. 4 12 through 9 12 are the most common pitches. 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.