How To Meaure Roof

For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

How to meaure roof.

To find the pitch of your roof you ll first. 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. Remember it doesn t have to be to scale or look pretty. Thus in a simple style house you ll only have to click on the corners.

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches. Calculate the pitch of the roof. You will need to express this size in terms of square feet. Measuring the length and width of each plane by hand 1.

Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements. Draw an overhead view of your roof. The pitch is the steepness of the roof. The most precise way to find the roof s slope is by measuring it from the underside.

L h 2 area calculating an area of a triangle when estimating a roof. It does have to contain all the straight lines of your roof and an accurate measurement of those lines. If you were to click on the peaks it wouldn t give you an accurate reading of your measurement. 1 roof square 100 square feet.

This can be done by multiplying the length in feet by the width in feet to get the area measurement. Climb a ladder with a notepad a pencil and a measuring tape. Each area on the roof is a single plane which just means it s a surface with a. Access one of the rafters then take the measurement this way.

Use a level against the underside of the rafter you re measuring to get the most accurate value. The length l times the height h of a triangle is twice its area a2. 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. Locate the level s 12 inch mark.

So if you divide your answer of a product of length times height by two you will get the area of a triangle. Outside of the u s a degree angle is typically used. Finding the total roof area. For example what we need on the picture of the roofs below are measurements of all the blue or red lines.

Find the length and width of the building s exterior walls. Measuring your roof from the ground 1. 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. Then determine the area of the roof as if it were flat.

Stretch your tape measure along the walls from end to end. Roughly draw out your roof on a piece of paper. Stow these items in a shoulder or hip pack while. 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.