Attic Wind Braces

Product data sheet sheet no 5 may 2007 fig 1 the elements of bracing room in the roof trussed rafters.

Attic wind braces. It braces a roof laterally and diagonally. Larger joist framing materials for instance 2x10 or 2x12 s can be doubled or tripled up with plywood in between and glued to create a flush. Submitted by ray thornburg on tue 06 04 2013 20 10. Learn the science and math of roof framing.

Applicable to all trussed rafter roofs unless rigid sarking such as timber boarding or plywood is used. Homeowners cannot take chances with the structural integrity of their roofs. There is more discussion on attic bracing on our truss bracing page and our wind zone requirement page. One way to strengthen a gable roof is to brace the end walls which are the most vulnerable to uplift.

Bracing purlin braces or any other roof braces ridge braces hip rafter bracing along with valley bracing must not be supported off the ceiling joists. How to brace rafters in an attic. If wind bracing is only temporary support whilst a truss roof is being put up then tell me what stops the roof blowing. Decorative arched wind braces between purlins 15th 16th century in architecture wind braces are diagonal braces to tie the rafters of a roof together and prevent racking.

Click the links to go to my buy it now page. My book the roof framers field manual tells all. The roof is subject to pressure placed on it by natural forces including snow rain. In medieval roofs they are arched and run from the principal rafters to catch the purlins.

In the attic there are two 2x4 angle braces one at each gable end that connect from the ceiling joist gable end to the ridge board mid span. Hip roofs in which all four sides slope toward a central ridgeline are naturally more wind resistant than gable roofs. Stack exchange network stack exchange network consists of 176 q a communities including stack overflow the largest most trusted online community for developers to learn share their knowledge. Bracing must be installed off of walls or beams.

Wind or wall bracing this bracing is installed in the roof in addition to the truss stability bracing and its purpose is to stabilise the gable walls under the action of wind loading.