Roof Hip And Valley Of Butterfly Roof

Hip and valley roof the hip and valley roof is similar to the gable and valley except the roof ends slope inward.

Roof hip and valley of butterfly roof.

It is so called because its shape resembles a butterfly s wings. The butterfly roof lends itself to an environmentally friendly home design as pv solar panels water collection systems and natural light can all be easily incorporated. Although a hip roof is not gabled it may have dormers or connecting wings with gables. A butterfly roof is a form of roof characterised by an inversion of a standard roof form with two roof surfaces sloping down from opposing edges to a valley near the middle of the roof.

They were also commonly used in georgian and victorian terraced house architecture of british cities where they are alternatively termed london. For any roof slope expressed as x in 12 rise in run the hip and valley factor is determined by finding the square root of rise run 2. The roof type in question has a number of different names including inverted pitch roof butterfly roof and even london roof. The complexity of the design makes the butterfly roof more expensive.

Divide the rise by the run the run is 12. Valley gutters are often lined with felt or even. Find the square root of the result. Butterfly roofs are commonly associated in the us with 20th century mid century modern architecture.

The hip and valley factor varies according to the slope of the roof as shown in the table below. When the building is square the hip roof is pointed at the top like a pyramid. A hip or hipped roof slopes down to the eaves on all four sides forming a horizontal ridge a roofer will usually put a vent along the top of this ridge.