Papercret Roof Trusses

Any weight imposed on the end truss is directly transferred to the endwall which transfers the weight to the foundation.

Papercret roof trusses.

Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. It can be used in the rafters of the trusses for insulation or sprayed to the underside of the roof itself but needs to be protected by a roof. When it hardens papercrete is lightweight a good insulator up to r 2 per inch holds its shape even when wet and is quite strong with a compressive strength of 300 pounds per square inch psi. Pre manufactured stock trusses are constructed with spruce pine fir spf or southern yellow pine syp lumber.

Energy trusses are designed to allow greater insulation depths at the heel. Spaceman s domes are built strong so they can withstand the extra weight of added moisture between long intervals of drought and drying. These trusses the meet building code criteria as specified by structural building components of america sbca and the truss plate institute tpi. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.