How Do I Measure For My Roof

Find the length and width of the building s exterior walls.

How do i measure for my roof.

Determine the length of the metal panels needed for one side of your roof by measuring from the fascia board the board attached to your roof joists to the ridge the peak of the roof. L h 2 area calculating an area of a triangle when estimating a roof. 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 length l times the height h of a triangle is twice its area a2.

Once the area of the roof s footprint is known the overall roof area can be found by accounting for the pitch of the roof. Measuring your roof from the ground 1. Remember that the length and width need to be found for the roof not the house so take into account that the roof overhangs the building. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy.

This number will tell you the total length of metal panels needed. For example your roof could measure 12 feet to its peak. Then determine the area of the roof as if it were flat. Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.

To find the pitch of your roof you ll first. This can be done by multiplying the length in feet by the width in feet to get the area measurement. Outside of the u s a degree angle is typically used. We have examples of two of the most common roof styles below.

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 hip style roof is in blue and the gable style roof is in red. Remember it doesn. Roughly draw out your roof on a piece of paper.

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. Thus in a simple style house you ll only have to click on the corners. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. The pitch is the steepness of the roof.

Stretch your tape measure along the walls from end to end. Use a pitch. For instance a 38 panel will have an effective coverage width of 36. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. Calculate the pitch of the roof. Finding the total roof area. 1 roof square 100 square feet.