How To Estimate Roofing Sheets

For cover width sizes please refer to our fibreglass or polycarbonate roof sheeting pages.

How to estimate roofing sheets.

With an online roofing calculator you will usually be able to drill down a bit deeper in order to see a fine grained cost breakout on a sq ft basis. Multiply length by breadth. In order to be able to calculate the number of roofing sheets required for your building you ll need to ask your contractor or engineer the actual size of his intended roofing sheet. Simply input the surface area of the roof choose from one of the available options and you will get your first roofing estimate.

The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area. The length of roof sheets are manufactured to your requirements. 686mm 0 686 3. How to calculate or estimate longspan aluminium roofing sheets.

Assuming the ceilling sheet is 3 6m in length and 1 8m in breadth then area of roofing sheet 3 6 x 1 8 6 48m2 therefore total numbers of roofing sheets needed approximately is area of building allowance area of one roofing sheet 583 2 6 48m. 4 3 sheets will be 5 sheets required. I decided to use the pitched roof simply because it is one of the most easiest to analyse. To estimate roofing materials start by finding the total square footage of the roof and divide the number by 100 to determine the number of squares in the roof.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator. Total area of roofing sheets 300 13m multiple 300 13 by the price of 1m of roofing sheet eg n3200 gerard 300 13 x 3200 n960 416 00k minus accessories i ll briefly explain calculating true length of c in r1 below. Once you have the area you can divide by the area of a sheet of plywood to find the number of sheets needed.

Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. To accurately calculate the area of your roof you must first determine its slope or pitch. As stated in previous articles the aluminium sheets comes in rolls at the factory just like toilet rolls but with different widths and. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally.

Next you will need to use a roofing materials calculator. A 4 8 sheet of plywood is 32 ft 2. Now find out the length and breadth of each roofing sheet and also. Number of roof sheets rounded off to highest number eg.