Hip Roof With Two Different Pitches

Mansard roof a type of hip roof where each side includes two different sloping angles with the lower angle much steeper than the upper angle.

Hip roof with two different pitches. First we should establish the pitch of both roof planes. Explore framing complexities that result when roofs of two different pitches intersect. Whilst it may sound ridiculous today they are used quite a lot these days to make a home look a bit more unique than others on the market. A sketchup model helps clarify how various rafters and framing components are assembled in an off angle hip and valley configuration.

It is up to the home owner to decide how big that transitoon will be. Managing a hip roof with two different pitches one thing that has become far more popular in recent years is the usage of hip roofs that have an alternative pitch at one side to the other. Any time you have two different pitches that come together weither on a hip or ridge or anywhere you need to manufacture a transition. Select the following information by using the drop downs to enter values in feet and inches.

Tented roof a multi sided polygonal hip roof with steeply pitched slopes that rise to a peak similar to what you d see on a church steeple. The hip roof framing calculator returns the value of the main rafter the side rafter the length of the hip the height of the knee wall and the lengths of the jack rafters. Everything else it does is solely for ascetics. Modern residential hip roof construction uses common pitch ratios in general.

The most common hip roof pitch ratios fall between 4 12 and 6 12 although variations occur based on factors such as snow rain and wind conditions which is because steeper hip roof pitch ratios allow for less accumulations of snow and rain on the roof and lower ratios provide less wind resistance. Blind valleys simplify framing to keep the porch roof framing as simple as possible we installed a structural ridge supported by posts at each end with the common rafters landing on top of the ridge. Your roof is there to keep moisture out of your house. One is getting the two differently pitched planes to meet at the hip or valley rafter.

We ll start with the knowledge that the main roof has an 8 12 pitch. Learn more about off angle roof framing.