How To Work Out The Pitch Of My Roof

Measuring from the underside of the roof is usually the most accurate way to find the slope since there is no roofing material to make an uneven surface.

How to work out the pitch of my roof.

To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page. Here s an easy safe way to determine the pitch from inside your attic. Step 1 access a rafter. Calculate the roof pitch as the proportion of rise and run.

Roof pitch refers to the amount of rise a roof has compared to the horizontal measurement of the roof called the run. Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m. This free roof pitch calculator will take your roof width see the picture and rise the height of the roof and will calculate the roof pitch both as numeric value and as a degree. You ll need a level that is 12 or longer and a tape measure.

If your roof pitch is greater than 3 your roof is considered pitched. The truss is a framework consisting of rafters posts and struts which supports your roof. On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise. Let s say it is equal to 1 5 m.

If you want to know how to find the pitch of a roof then start with a calculator. To measure the roof pitch you ll need an 18 or 24 inch level a tape measure and a pencil. Then enter the value of the run and choose the unit of measurement from the drop down menu. This will allow your project to carry the depth and detail in the roof that you wanted as well as make sure that it will maintain a sturdy and effective nature throughout.

Pitch rise run 1 5 6 25. Outside of the u s a degree angle is typically used. A barge rafter at the side of the gable step 2 position a level against the underside of the rafter. First enter the value of the rise and choose the unit of measurement from the drop down menu.

One method to find the pitch is to climb on the roof and measure the rise for a 12 run. Measure the rise of your roof. 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. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches.

First measure 12 inches from one end of the level and make a mark. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions. Finally enter the value of the rafter length and. The overhang of a rafter at the end of the roof.

Then in the attic place the end of the level against the bottom of a roof rafter and hold it perfectly level. Any of the following will give you a good measurement 1 x research source a rafter in the attic. Place one end of a carpenter s level against the underside of the. Calculate the rafter length substituting these values into the following formula.

Optionally you can use it as roof cost calculator if you also happen to know the average cost per square foot in your area.