After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.
Hip roof measure.
Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet.
How to measure for hip roofing step 1.
Hip backing angle 10 5.
For parallelogram shaped faces measure the length.
Use a ladder to carefully climb onto the roof.
Climb up to the roof and measure each face of the hip roof.
1 pyramid hip roof roof base is a square roof sides are identical isosceles triangles 2 hip roof roof base is a rectangle two sides are identical isosceles triangles and two sides are identical trapeziums.
If the roof has a triangular shape stretch your tape measure along.
The roof area for a hip end is the same as for a gable end the intersection is equivalent to a hip slightly conservative so there is usually no need to consider triangles when measuring a roof.
Outside top plate edge to ridge top edge common 3108.
Hip backing angle 15 4 for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length.
Measuring an existing roof 1.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
Set up your ladder beneath one of the roof s hips or sloped faces.
How to calculate your roof square footage first measure the length and width of each surface on the roof then multiply these values to get the square footage of that surface.
The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials.
Purlin lip cut angle 7 6.
If you are trying to undertake this all yourself then you should really be looking for the most effective way of working out things like the hip roof square.
Find the dimensions of each of the roof s faces.
With a square roof the ridge becomes a square centre piece kingpost with side lengths equal to common rafter thickness.
The only difference in this calculation to the one for a gable roof area is the amount of the ridge.
Set up a ladder to allow access to the roof making sure that the feet of the ladder are resting on firm ground.
Hip roof square footage calculator calculate the square footage area of a hip roof the square footage of a hip roof area is identical to the square footage of a gable roof of the same size.
X expert source david bitan.
Hip roof framing center join diagram with options for square roof 1.