How To Measure My Roof

1 roof square 100 square feet.

How to measure my roof.

To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. 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. On a simple house for instance you would only click on the corners of the roof and not on any points along the peak as that would cause an error. The run always remains.

The metal roof length calculator calculates the distance from peak to trim so add the length you want the roof metal to extend beyond the eave trim. Calculate the pitch of the roof. To find the pitch of your roof you ll first. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy.

You will need to express this size in terms of square feet. Keep in mind that the average size of a roof is 1 700 square feet so your total will likely be 10 higher or lower than this figure. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. L 30 feet h 12 feet 30 12 2 180 square feet.

Outline the roof at the points that are on the same level or elevation to ensure that you re getting an accurate calculation of your roofing measurements. The first step in a free roofing estimate is measuring the roof dimensions. Find the length and width of the building s exterior walls. It is often compared to slope but is not exactly the same.

Measuring your roof from the ground 1. After measuring the area of the footprint you can estimate the actual roof area based on the angle of the roof. Use a pitch. The length l times the height h of a triangle is twice its area a2.

For instance a 38 panel will have an effective coverage width of 36. Roof pitch is measured by rise run rise the distance from the top of a stud wall to the peak of the roof. Thus in a simple style house you ll only have to click on the corners. The pitch is the steepness of the roof.

First measure 12 inches from one end of the level and make a mark. Outside of the u s a degree angle is typically used. Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.

Stretch your tape measure along the walls from end to end. So if you divide your answer of a product of length times height by two you will get the area of a triangle. For this reason it is best to outline the roof at points which are all at the same elevation. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.