Towering Truths Wooden Posts Roof

For all except the last two on the north side of the terrace which are 20 5 o c.

Towering truths wooden posts roof.

The joist spacing is 24 o c. The one caveat is. In this roof queen posts is used instead of king post. The wooden queen post roof differs from a king post truss in having two wooden uprights or vertical member which is known as queen post.

The determining factor of post spacing is the allowable span of your beams. In this roof the queen posts are the tension members which are used to prevent the sagging of tie beam. They were developed by the af pa and should still be valid for most designs. Mcdonald et al the forest products society 1996.

In other words the maximum distance it can cover without support from posts. If you have a flat roof great there s a kit for that. A straining sill is fixed on the tie beam. The joists are holding the usual 4x8 plywood sheets for the shingle roof.

Either way a metal post is the best alternative. Anything heavy enough to keep it in place. If you have to cut a pt post be sure to dress any field cuts with a copper naphthenate preservative containing at least 1 elemental copper. And the last joist which is 15 o c.

If you use metal as i suggested you have one seam and it can be soldered or riveted and caulked and the top is flush with a caulk lip. All of the effects from the elements can gradually deteriorate wood causing rotting. Materials construction and finishing kent a. It s a tripod with a flat frame on the bottom to put bricks concrete blocks or sandbags.

Even if it was plastic wood it still has 4 seams and a top. If you re dealing with old posts that have fallen out of plumb use rope to straighten them. Tables 6 and 7 in this book show a range of tributary areas and post sizes. Another document that provides a flexible post sizing table is wood decks.

According to old and sold the leading factor in post decay is decomposing sap inside of the wood. It is currently supported by 4 4x4 wood posts which are rotting away. Get your posts plumb. If you re putting them up new brace them once they re plumb.

Allowable spans vary according to wood species and the loads that the beam will bear such as snow loads or the dead loads of construction materials. The play deck is covered with a standard wood roof. Its the only approved termination detail to wood by the major manufactures also. Mounting a weather station to a wood post or a metal pole.

Let the fun begin order yours today. Mount the weather station on the roof with a tripod. When exposed to water decomposition hastens the rot of the wood post. The alpine wave slide and the rock wall with climbing rope are sure to keep them busy.

The beam supports 17 2x6 joists.