In terms of a floor plan the difference between a house and a garage is the absence of interior walls in a garage that offer structural support points for rafters.
Garage roof support.
If you do not have another floor above the ceiling trusses may only be able to hang a maximum of 10 lbs sqft.
Drive the remaining carriage bolts into the two by six rafter and tighten them all up.
The gable end of this truss framed garage roof doesn t support much weight so we were able to add the double 2 10 header and remove the wall section without adding temporary supports.
The horizontal bottom chords of most garage trusses are designed to carry the weight of drywall and insulation.
A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.
It is a waterproofing layer made of regular felt stacked above the solid.
Place the jack back underneath the beam but this time under the iron piece.
Build the components from weather resistant lumber if you want to build a durable roof for your garage.
That means you could lay a 2 x 4 ft.
Is a safe estimate.
Extra support for the trusses can be made by placing a 2 by 4 inch piece of lumber from each truss on one side to the truss on the other side high enough to provide head room but low enough to provide support for the trusses.
Then lower the jack down a little at a time so that the metal can take the weight of the roof.
A front and a back overhang will add style to your construction.
Before removing a section of the garage wall you ll have to add a header to support the weight of the roof above it.
A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.
Remove the jack quickly and set the iron onto the entire beam.
If you need a storage area above your garage strong ceiling joists are necessary to support the added weight.
In this situation the walls of a finished attic space or room would go with the roof line.
If you have an attic over your garage these joists also bear the load of your attic flooring and any materials you store in the attic.
Scrap of plywood over the chords and set about 40 lbs.
So if your ceiling is unfinished you have some excess carrying capacity up there.
If you have another floor above your garage the ceiling floor structure can usually support up to 40 lbs sqft including the weight of the floor above it.