Howto Determine Where Roof Ridge Lies

Enter square footage calculate or enter the square footage of the attic or area to be vented.

Howto determine where roof ridge lies.

Using the end common rafter length i calculated the ridge at 6 3 8 by taking the length of the bldg of 112 minus both end common rafters of 105 5 8. That way you ll end up with a watertight ridge. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. In this video i will look at how to calculate the length of the ridges on a broken hip and valley roof.

Explore a number of housing related calculators as well as hundreds of other calculators covering topics such as finance math health fitness and more. Using the run of 4 i calculate the ridge at 16 length of bldg of 112 minus run on each end. I also assume you ll be using a 2x material for the ridge board. When you reach the top of the roof run your last row long photo 6 and drape the paper over the peak top ridge onto the other side.

This will be the third of a series of three videos if. As a reminder please don t forget to add height of rafter thickness of roofing material and ridge vent to the number that you ll get using our calculator. If you ever wondered how to figure your overall building height or roof height here we have a calculator to make life a little easier for you. The first step in a free roofing estimate is measuring the roof dimensions.

When you reach the top on the other side of the roof run that paper up and over as well. Which if either of these calculations is correct. Subtract the shorter wall length from the longer wall length and add 1 5 inches for the length of the ridge beam or board. You will need to express this size in terms of square feet.