Our roof calculator uses base length and base width to find the estimated area.
In roofing a square measurement is an area of.
While it is possible to estimate the amount of necessary materials using only the total roof area measurement as can be seen from the table depending how large the pitch of the roof the actual area of the roof can differ by up to 2 236 from the measured total area at a pitch of 24 12.
When talking about a new roof the same amount of square footage is required for the underlayment.
One roofing square is equal to 100 square feet.
So in a sense we re talking about square feet but using this unit makes it easier to calculate the footage or required materials and cost of a roofing project.
You will find underlayment in rolls of four.
Instead a square is a term of measurement all its own.
Roofing square is the most common measurement unit used by roofers as well as contractors from many other trades.
It s much easier to say 25 squares than 2507 square feet and there is less information lost in translation.
The square is an imperial unit of area that is used in the construction industry in the united states and canada and was historically used in australia one square is equal to 100 square feet examples where the unit is used are roofing shingles metal roofing vinyl siding and fibercement siding products.
Area is defined as the expanse or measurement of a given surface and there are a few methods for measuring your roof s area.
Up till now we were discussing how to measure roofing shingles for re roofing.