The method contains three easy steps. Firstly, you calculate the horizontal size between reverse partitions. Secondly, use a easy mathematical components to find out the size of the ridge board you will want and the variety of boards to purchase. Lastly, decide the elements that will have an effect on the outcomes of your calculation and contemplate them the place acceptable.
Crucial truth to recollect is that you will want to sq. each A and B values, then add them collectively when utilizing the components above. As soon as that’s completed, you possibly can take the sq. root of the sum and that can equal the space between the alternative corners of your roof. To find out the ridge board size, simply double this quantity. Lastly, take the brand new end result and divide it by the size of the ridge board you resolve to go together with, rounding as much as the closest entire quantity, and that can inform you the variety of ridge boards you’ll need to finish your venture.
You will need to contemplate a few elements that will have an effect on your calculation, equivalent to in case your roof has overhangs and if you happen to plan on putting in a ridge vent. To account for overhangs, simply double the measurement you get from the A measurement. Moreover, if you happen to plan to put in a vented ridge, you possibly can subtract 0.33 ft from the variety of ridge boards you want. It’s because vented ridge boards have to overlap one another by 6 inches.
How To Calculate Ridge Board
To calculate the size of a ridge board, it is advisable know the size and pitch of the roof. The pitch is the angle of the roof, measured in levels. The commonest roof pitches are 4/12, 6/12, and eight/12.
As soon as you understand the size and pitch of the roof, you need to use the next components to calculate the size of the ridge board:
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Ridge board size = (size of roof x 2) / (12 / pitch)
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For instance, when you have a 20-foot roof with a 6/12 pitch, the ridge board size could be:
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Ridge board size = (20 ft x 2) / (12 / 6) = 20 ft
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Individuals Additionally Ask
What’s a ridge board?
A ridge board is a horizontal board that runs alongside the height of a roof. It connects the 2 sides of the roof and gives assist for the roof tiles or shingles.
How do I set up a ridge board?
To put in a ridge board, it is advisable first measure and minimize the board to the right size. Then, it is advisable nail the board in place alongside the height of the roof. You need to use galvanized nails and house them about 6 inches aside.
What if my roof has a special pitch?
The components for calculating the ridge board size will change relying on the pitch of your roof. You should utilize the next desk to seek out the right components in your roof pitch:
| Roof Pitch | System |
|---|---|
| 4/12 | Ridge board size = (size of roof x 2) / 3 |
| 6/12 | Ridge board size = (size of roof x 2) / 2 |
| 8/12 | Ridge board size = (size of roof x 2) / 1.5 |
