How To Figure A Metal Roof

Multiply the footprint square footage by the multiplier for your roof pitch to find the actual square footage of the roof.

How to figure a metal roof. Measuring for a metal roof begins with getting a ladder. Thus a moderate 6 in 12 roof pitch means that the roof rises 6 inches vertically for every 12 horizontal inches it runs. So if you divide your answer of a product of length times height by two you will get the area of a triangle. This is done by measuring from one outside edge of your roof to the opposite.

Measure the length and width in feet then multiply together to find the square footage. A roof s pitch is determined by how much it rises vertically for every foot it runs horizontally. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. 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.

You will need to go up on top. Measure the length of your roof. Hip rafter length. 1 roof square 100 square feet.

Before ordering your roofing materials it is important to accurately determine the size of your roof. Digits after the decimal point. L h 2 area calculating an area of a triangle when estimating a roof. Next find the square footage of the metal roofing panels you want to use.

The length l times the height h of a triangle is twice its area a2. For example standing seam metal roofing is 24 inches wide. How to figure how much metal roofing you need step 1. Hip roof by roof raise length and width.

Use our roof pitch calculator to find the pitch of your roof. If the pitch of the roof is not that steep you won t have to worry too much about following. For instance a 38 panel will have an effective coverage width of 36. It is often compared to slope but is not exactly the same.

How to use metal roof calculator. To accurately calculate the area of your roof you must first determine its slope or pitch. Don t forget to include roof overhangs. We plan to enable the use of fractions at a later time.

1 measure your house foundation length width and enter your dimensions into roof size fields. To use this panel length calculator enter whole numbers and decimals only. Enter the diameter of the roof ridge vent gap 1 3 finally enter the coverage area width of the panels you plan to buy. Determine the width of the metal you are installing.

You should do this with someone that can hold one end of the tape measure so you can go to the other ends.