Flat roof with no permanent access and altitude not exceeding 100m 0 75 kn m udl 0 9 kn point load most areas exceeding 100m but not exceeding 200m excluding parts of scotland pennines north east england refer to bs 6399 3 1 kn m udl 0 9 kn point load.
Flat roof trusses uk.
If you want to build a flat roof then you will need to build a flat roof truss these are designed to span the space between two load bearing walls and take the weight from the roof onto these walls.
They re the most cost effective way to build a roof.
A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof.
The structural framework of timbers designed to provide support for roof coverings are now the most common form of framing in the uk.
35mm standard roof truss.
Fast track 5 day uk nationwide delivery service available on roof trusses.
Tailor made provide roof truss design and manufacturing for use with timber frame kits or as a stand alone package to builders and developers.
The truss is a framework consisting of rafters posts and struts which supports your roof.
The standard roof truss used for the majority of new build houses across the uk.
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.
Lattice truss used within a roof to support other trusses or for large flat roofs.
These trusses are used when habitable space is required within the room zone.
Gable end truss spans across an opening in a gable wall and designed to be clad on site.
They re a flexible practical solution for all kinds of roof designs.
Girder truss special trusses designed to support other trusses or areas of infill.
As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss.
Roof truss span chart author.
Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches.
While among the most common types this truss is considered as less efficient because the stress on the webs of the flat trusses is greater compared to other types.
And it s easy to see why.
Leslie althoff created date.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.