Stretch your tape measure along the walls from end to end.
How to meaure 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.
Climb a ladder with a notepad a pencil and a measuring tape.
Outside of the u s a degree angle is typically used.
Each area on the roof is a single plane which just means it s a surface with a.
Measuring the length and width of each plane by hand 1.
Find the length and width of the building s exterior walls.
To find the pitch of your roof you ll first.
The length l times the height h of a triangle is twice its area a2.
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 most precise way to find the roof s slope is by measuring it from the underside.
Draw an overhead view of your roof.
Calculate the pitch of the roof.
So if you divide your answer of a product of length times height by two you will get the area of a triangle.
Finding the total roof area.
Stow these items in a shoulder or hip pack while.
Remember it doesn t have to be to scale or look pretty.
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.
Measuring your roof from the ground 1.
The pitch is the steepness of the roof.
You will need to express this size in terms of square feet.
For example what we need on the picture of the roofs below are measurements of all the blue or red lines.
The first step in a free roofing estimate is measuring the roof dimensions.
It does have to contain all the straight lines of your roof and an accurate measurement of those lines.
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.
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.
Make sure to document the number of chimneys skylights or other obstructions and include dormers in your measurements.
1 roof square 100 square feet.
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.
Locate the level s 12 inch mark.
L h 2 area calculating an area of a triangle when estimating a roof.
This can be done by multiplying the length in feet by the width in feet to get the area measurement.
Thus in a simple style house you ll only have to click on the corners.
If you were to click on the peaks it wouldn t give you an accurate reading of your measurement.
Use a level against the underside of the rafter you re measuring to get the most accurate value.
Use a pitch.
Then determine the area of the roof as if it were flat.
