Roof Ridge Beam Thickness

A structural ridge beam is a horizontal beam placed at the peak or ridge of a roof and is designed to carry much of the live and dead loads or weight of the roof structure by itself.

Roof ridge beam thickness.

Chapter 8 of the international residential code irc prescribes the elements for a type of roof frame known as a compression roof. Enter the span the difference in wall heights the pitch and the thickness of the ridge. Ridge boards can only be used in roofs with slopes from 3 in 12 up to 12 in 12. As a reminder please don t forget to add height of rafter thickness of roofing material and ridge vent to the number that you ll get using our calculator.

Ridge beam height above top of slab height of wall z. If your goal is to only calculate the roof height do not enter any numbers in wall height field and only use building width and roof pitch fields. The ridge board is installed to provide a bearing point where the rafters meet and it also helps with alignment along the ridge. Hip roof this hip roof calculator returns the value of the common rafter the side rafter the length of the hip the off set of the hip the height of the scaffold and much more.

Once the ridge beam has been positioned in place and supported by roof framing members you can determine the placement of a rafter by measuring down from the top of the beam y height and making a mark on the beam. The loads on the ridge beam are carried by vertical posts at the beam ends down through the building structural walls to the building foundation.