Log Purlin Roof Construction

Purlin plates in wooden construction.

Log purlin roof construction.

All of our roof systems are standard with r 38 insulation. 100 of the bearing surface is in contact at the member connection. Depending on the design of your log cabin our home timberhaven has four roof options from which you may choose. Under purlins were typically propped off internal walls.

The log connection is a leading producer of quality hand crafted log homes log cabins custom log homes and post and beam style log homes. Our machinery can produce logs up to 32 in diameter. The term plate means a major horizontal supporting timber. They give added support to the roof and also provide a nailing surface for the end panels and drip edge.

With this layout the upper level which is typically framed construction rather than log the ceiling slash roof can use rafters and purlins to add log elements. Purlins are 2 by 4 feet and are installed much like metal roofing. Metal roof purlins are installed horizontally under metal roofs. Roof systems precision joinery sets our log and timber roof systems apart from the rest.

A purlin roof uses additional courses of horizontal logs to tie into the gable logs. For accuracy and tight fit these trusses cannot be matched. We can supply logs or timbers for trusses purlins posts and floor joists. A purlin plate in wood construction is also called an arcade plate in european english under purlin and principal purlin.

For our friends jack and bob there was no doubt they wanted timberhaven s beam purlin roof system in their dream log home. Purlin plates are beams which support the mid span of rafters and are supported by posts. They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. Whether a log home or outbuilding for personal use or a majestic hotel or visitors center for a national park most log buildings share one of two roof structures purlin or rafter.

Let s take a closer look at this particular roof system along with some other roof options. By supporting the rafters they allow longer spans than the rafters alone. For example an 8 x 4 under purlin would support the center of a row of 6 x 2 rafters that in turn would support 3 x 2 roof purlins to which the roof. Beam purlin 6x8 rafter 2x cathedral and pre fab truss.