Post And Purlin Log Roof

Building log gable ends is perhaps the most difficult design problem in log home construction.

Post and purlin log roof.

Adding purlins between heavy timber trusses is an elegant way to reduce the cost of a timber frame roof because purlins permit an increased on center distance between trusses so you purchase fewer trusses. Available in cee or zee shape red oxide primed or galvanized 16 14 or 12 gauge sizes from 4 up to 12 flange widths of 1 1 2 up to 4 cut to your specified lengths hole punching available load tables available for all material. An added benefit are the strong lines that purlins create by running parallel to the ridge beam s. We can design engineer fabricate and deliver a ready to assemble package to your jobsite.

For accuracy and tight fit these trusses cannot be matched. 100 of the bearing surface is in contact at the member connection. Our machinery can produce logs up to 32 in diameter. Engineered purlin metal mart offers a complete line of engineered purlin material.

My advice to you is to frame the gable walls conventionally or use log posts to support log purlins and a ridge but do not use horizontal logs to make your gable walls. 5 htm high thermal mass passive solar house plan roof details complete with log purlin notes and low tech vented cold roof sips panel design considerations for the do it yourselfer passive solar roof details do not have to be unique but cold vented roof design with vented sips panels and layered insulation is a natural with log purlins. The individual logs can also be used to create custom log truss symbols. The roof support system is a ridgepole and either rafters which run perpendicular from the top of the walls to the ridge or purlins which run parallel to the ridge.

Timber frame truss and purlins. Again cut the ridge to match the expected roof pitch. If necessary rotate the log purlin so that it is perpendicular to the trusses in your plan and then move it into position inside the structure. A common arrangement is a rafter and purlin system which combines purlins and rafters.

When using them as purlins be sure to select items with either r 90 or r 00 in the name. Roof systems precision joinery sets our log and timber roof systems apart from the rest. 2 6 roof loft decking 5 4 cedar decking and more.