Roof Plate Size

Vent axia roof plate assemblies are manufactured in high impact recyclable thermoplastic.

Roof plate size.

Introducing our latest design in our line of truss plates f t ashpcan20 a flier describing the new ashp and ashpn truss hinge plate models and showing the canadian limit state design values. The truss is a framework consisting of rafters posts and struts which supports your roof. Roof plate assemblies unit size 7. Wall plates should be joined using half lapped joints at corners and in running lengths.

In scotland 100mm x 25mm wall plates should be used in long lengths butt jointed. As the mortar does not bond the wall plate to the wall steel straps are used to ensure that the roof structure remains secure. There are several variables to consider when determining the proper rafter size. The trimmed joist will measure 600mm minus the thickness of the joist substitute 600 for 400 450 or whatever centers you are working to.

Generally wall plates are in lengths of not less than 3 m. Wall plates should generally be in lengths of not less than 3m but shorter lengths should extend over at least 3 joists rafters or trusses. For instance if your roof has a steep pitch you may be able to use 2 inch by 4 inch rafters but if your roof has a low pitch building code may require that you used 2 inch by 6 inch or 2 inch by 8 inch rafters. If you have tall joists you may need to cut a splice or seat cut on the end of the joist so it doesn t protrude above the rafters.

Likewise for the trimmed joist 600mm from the outside of the wall plate. They consist of a strong one piece moulded plate with extended sides to assist flashing and weather protection. The width is measured simply straight across the top of the sheet from. The width varies greatly depending on the style of roofing.

These are typically 1 2 m long with a cranked end and are fixed to the wall plate at 2 m centres. A separate sub frame is provided for permanent fixing to the roof kerb. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions.