How To Measure A Roof With Valleys

When measuring a roof some measurements need to be more accurate than others.

How to measure a roof with valleys.

After you measure the length of the roof you will need to measure the valleys and hips. The three methods to shingle a roof valley. Find the square footage of the roof. You will need to get these measurements so that you know how much ridge cap hip covering and valley metal.

Valley roof the valley roof option is used to calculate valleys for 90 degree intersecting roofs with equal slopes and wall plates at the same height. The blind valley roof can be used to calculate valleys for roofs with unequal slopes. Repeat the run not the length of a common rafter for precision the thickness of the ridge board and any eave. Measure any additional structures separately.

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. When deciding how to shingle a roof valley you will need to consider your materials the climate and the desired look of the roof. For example you could be a little off with the measurement of the. This recommendation includes iko s premium shingles.

The roof area is simply 114x18x2 plus 30x18x2 giving 5184 square feet which is perfectly adequate for estimating materials. Measure the length and width of each portion of the roof multiply length by width for each plane and then add the planes together for the total square footage. 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. For regular hips and valleys where the roof sections have the same slope and meet to form a 90 degree angle.

The heel height overhang and ridge and fascia boards for both roofs will be the same. Iko recommends that you install architectural shingles with the open valley method for the best roof performance.