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.
Roof hip and valley of butterfly roof.
The hip and valley factor varies according to the slope of the roof as shown in the table below.
You can combine gable and hip designs with a cross footprint home as well.
It is as one of its names suggests a pitched roof but it generally cannot be seen from ground level as it is concealed behind a parapet wall.
Valley gutters are often lined with felt or even.
The complexity of the design makes the butterfly roof more expensive.
They were also commonly used in georgian and victorian terraced house architecture of british cities where they are alternatively termed london.
Find the square root of the result.
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.
Butterfly roofs are commonly associated in the us with 20th century mid century modern architecture.
When the building is square the hip roof is pointed at the top like a pyramid.
Not only are the upfront costs higher than with conventional roofs but the maintenance will also.
Divide the rise by the run the run is 12.
The roof type in question has a number of different names including inverted pitch roof butterfly roof and even london roof.
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.