How To Frame A Hip And Valley Roof

Tommy silva gives the apprentices a lesson in hip roof framing.

How to frame a hip and valley roof.

Http bit ly subscribethisoldhouse he explains the difference b. First of all you need to design the layout of building. Next once you know the lengths of the rafters cut some wooden planks to size and make birdsmouth cuts in each one so. Now draw the centerlines for all rectangles that are formed inside.

Broken hip and valley roof are formed on an l shaped building when the two sides ar. I ll start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully i ll make it really clear and easy to understand exactly how to set out measure cut and install hip and valley roof rafters. Here roofs are constructed with an angle of 90 degrees. To build a hip roof start by measuring the width and height of the building you re putting the roof on.

Hipped roof construction can seem quite complicated to grasp at first but i m going to break it down and explain each area in detail. This video shows the erection procedure for a broken hip and valley roof. But it doesn t have to be. The hip and valley factor is a number that is multiplied by the actual run horizontal distance of a common rafter to determine the length of a hip or valley rafter.

Then enter those measurements into an online roofing calculator to determine how long each common rafter will need to be. Subscribe to this old house. Framing a complex roof is one of the trickiest parts of home building. Now outline the biggest rectangle inside the building layout.

If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot. For regular hips and valleys where the roof sections have the same slope and meet to form a 90 degree angle. Repeat the run not the length of a common rafter for precision the thickness of the ridge board and any eave.