That means you could lay a 2 x 4 ft.
Hanging roof trusses.
How to frame roof trusses to hang drywall step 1.
Is a safe estimate.
For direct application of drywall for less than 12 inch or 16 inch trusses you should nail the drywall with 1.
So if your ceiling is unfinished you have some excess carrying capacity up there.
Roof trusses are engineered wood alternatives to hand framed rafters.
While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.
Live loads are not always present.
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Solutions compromised trusses can lead to severe structural problems such as bowing exterior walls sagging ridge lines and roof collapse.
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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.
Examples of live loads are snow wind rain and temporary construction loads.
Truss manufacturers and structural engineers design the distance between trusses.
The beam extends to the far end of the roof hanging over the trusses still sitting there.
They support live and dead loads by efficiently transferring the loads to the building walls or supports.
The horizontal bottom chords of most garage trusses are designed to carry the weight of drywall and insulation.
Of stuff on it.
Main roof trusses would stop at top plate and separate porch trusses would hang on wall below main roof trusses and maintain same roof pitch.
As the workers position each subsequent truss they attach it to the wall plates and to the ridge beam.
Scrap of plywood over the chords and set about 40 lbs.
All weight hanging from the truss has to be added to the existing dead load.
Dead loads are always present.