Post And Beam Roof Construction

Beams can be solid lumber or be built from lengths of 2 by lumber nailed together with 1 2 inch pressure treated plywood spacers in between this forms a 3 1 2 inch thick beam that is equal to the width of a 4 by post.

Post and beam roof construction.

Post and beam construction has a very similar aesthetic and the joints can look similar but the stark difference is the connections are simple sometimes made with plates and bolts. Post and beam framing is more simple and actually an older style with main carrying members bents or lintels supporting joists and rafters that are notched in to the beams. Some post and beam projects are done without the plates. Summing up in this tutorial module residential structural design we ve covered basic structural loads for wood framed homes sizing floor joists floor beams and roof beams.

For areas with attic space above flat ceiling ceiling joists are included but the remainder of the ceiling system above is by owner contractor. And cdx fir plywood. First roof area assembly the first roof area is constructed with heavy timbered components that are secured to the ridge beam and second floor beams. Timber framing and post and beam construction are traditional methods of building with heavy timbers creating structures using squared off and carefully fitted and joined timbers with joints secured by large wooden pegs.

If the structural frame of load bearing timber is left exposed on the exterior of the building it may be. These timbers are then tied together with collar ties the horizontal members and gusset plates the metal fasteners as you can see in the photo below right. For those projects the connection is made by lag bolting the timber components together. It is commonplace in wooden buildings through the 19th century.

Exposed ridge beam collar ties or purlins for cathedral areas as required and 6x8 douglas fir plate beams typically 2x12 spruce rafters 2 o c.