Now you re ready to price out the materials.
How to find the area of a roof.
The calculated area is only an estimation.
To calculate the roof area if you have a seat roof.
Both metric and imperial measurement systems are displayed in a popup menu over the results area.
Y 6 meters from ceiling to ceiling where the roof sides meet.
The highest point of a roof.
Front of the roof 12 x 6 72 square meters m.
Measure the width and length of each side of the roof.
A gable roof and a hip roof of the same length and slope will have identical areas.
Take your area result and multiply it by the pitch multiplier or slope correction factor found in the table above to arrive at the roof s surface area.
1 roof square 100 square feet.
Hip roof is a roof with a sharp edge or edges from the ridge to the eaves where the two sides meet.
This is expressed in terms of how many inches the roof rises for every foot of.
Here is the online hip roof area calculator which helps you calculate the hip roof parameters such as roof rise common and hip rafters length and roof area based on width height of roof base and the roof pitch identical for all sides.
Multiply the length times the width to calculate the square footage.
How to calculate roof area step 1.
Determine the dimensions of the roof.
Because each 100 square feet of roof is one roofing square divide the total area from step 1 by 100.
L 30 feet h 12 feet 30 12 2 180 square feet.
X ceiling width 12 meters.
Convert the area to roofing squares.
Back of the roof 12 x 6 72 square meters m.
A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.
The answer is the number of roofing squares for the roof.
The calculator cannot account for complex shapes based on a measurement of square footage alone.
To accurately calculate the area of your roof you must first determine its slope or pitch.
Next place your ladder against your house at the gable end.
Enter roof dimensions below for your roof in feet or slope as inches rise per foot if you enter only l 1 w 1 h 1 the result will be the area of a single straight gable roof.
The length l times the height h of a triangle is twice its area a2.
Determine the slope 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.
Gable or hip roof.
To calculate the area of your roof first you ll need to calculate the pitch of it.
Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs.
First use your measuring tape to measure 12 inches on your large level and make a mark at the 12 inch line.
Hip roof area calculator.