How To Measure A Roof From Blueprints

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.

How to measure a roof from blueprints.

Open the app and select measure your roof select sketch my roof retrieve your blueprint image by tapping load then selecting the source of the file i e your email dropbox etc. Make light lines on the plan with a pencil. If the roof is a very simple dormer or hip roof with no valleys then you d take width x pitch factor x length squares. Looking at the triangle that the roof plane looks like on the plans you multiply the base the long part of the triangle by the height of the triangle the peak of the triangle down to the base then divide that in half.

The first thing to check is what scale the roof is drawn in. Write this number down. To measure the roof start off by squaring every section of the roof off. How to measure residential roof plans.

I guess square feet x pitch factor would also work the same. As was said before. 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. If the roof is not a very simple roof you have to measure each roof section individually and do the geometry for each roof section.

The next thing to determine is the roof pitch see how to determine roof pitch the easiest and most accurate method to measuring a roof plan is to square everything off. Select the blueprint you wish to measure. In this drawing a 1 8 scale ruler is being used. The roof below is drawn in 1 8 scale this means that if using a regular tape measure that 1 inch would equal 8 feet.