![]() I would buy the engineered trusses even myself for anything over about 16' wide. īuying engineered trusses from a supplier may be more costly but for a gable roof it is not much if you factor your labour in to the process. They need to be properly designed in order to span that far under snow and wind loads. Available in left and right models for installation near the end of girders. UGTQ Universal Girder Tiedown is a high capacity tiedown designed to resist uplift loads on multi-ply roof trusses. ![]() I would also install horizontal collar ties in the middle 1/3 of the top rafter cord and then angled struts from that same area down to the bottom cord.īuilding gable rafters for this wide of a building in my opinion is not really advisable as the span creates a real problem with down ward pressure on the upper rafter cords which in turn puts outward pressure on the walls of the structure. Rafter tie designed to anchor trusses and rafters directly to the stud below. Butt the two ends together and then "sister" another 48" length of 2x4 material to them to strengthen the joint. H2.5A hurricane ties are made from 18-gauge galvanized or stainless steel to prevent rusting and corrosion and ensure durability. These ties offer a continuous load path by which the load can travel from the roof to the wall plates. I would place the joint in the middle so 12' material would work perfect in your case. Unlike the first option, this hurricane tie works on one side of a rafter or truss for moderate wind protection. ![]() ![]() Ok so the term "rafter tie " I am not familiar with I assume you are referring to the very bottom cord of the rafter that sits on the walls? These pieces would end up being the ceiling joists and would support what ever you close the ceiling in with. ![]()
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