Formula For Firuring Out Roofing Materials

Divide the entire length of the roof by 2 feet to find out how many rafters you ll need to frame the roof.

Formula for firuring out roofing materials.

Simply enter your roof dimensions and roof type such as gable or hip and approximate roof pitch. Dimensions measured from the ground. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. Find the area of a roof.

Since it takes 3 bundles of shingles to cover a square plan to purchase 3 bundles for each square. To figure out your roof s area a simple geometry can be used. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. 1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.

Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed. Although ceramic tile roofs are expensive they can have a life span of over 100 years. Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years. The key is to be as accurate as possible since falling short or an overage could mean thousands of dollars when planning your roofing budget.

Our calculator will help you estimate the amount of roofing shingles needed for your project plus the cost of materials and accessories. Calculate framing and decking for a roof. Below there is a simple triangle and the math used to work out. Roofing material calculator estimate bundles of shingles and squares calculate the size of your roof and estimate how many bundles of asphalt shingles rolls of felt and squares of roofing material are needed for a new roof.

In the roofing trade this is known as the installation cost and it can vary widely depending on the type of replacement roof that you are getting. Roofing is measured in squares. The most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans. This will equal the number of plywood sheets you ll need.

To accurately calculate the area of your roof you must first determine its slope or pitch. Add the price per square of materials to get an estimated material cost. But keep in mind that materials typically only account for 40 of the total cost of square roofing. The other 60 is labor.

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.