How to modify roof trusses step 1.
Modifying roof trusses.
Don t modify cut wood trusses.
These trusses are usually engineered by a structural engineering company to carry a specific roof load.
At both of these marks position a 2 by 4 so that the bottom is on the floor and the top extends upward to a.
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Measure the width of the truss.
Use a circular saw to.
If you really want to modify the framing of your attic and roof then consult with a licensed professional structural engineer.
My client wants to add a 16 inch wide 4 inch deep tray ceiling in a room where the drywall ceiling is attached to the bottom chord of roof trusses.
To do this i d have to cut out and raise the bottom chords of the trusses.
I guarantee you he ll come up with a design that requires you to install a much larger bottom chord.
Measure in from the lower edge of the roof to a point 1 4 the width of the truss on either side of the attic.
When to modify trusses for attic space the trussed roof has a w shaped support system placed into triangular sections that are designed to maximize roof strength.
Also if you decide to do this you must work hand in hand with a licensed structural engineer that s familiar with wood trusses.
If you live in a house with engineered manufactured trusses then don t mess with them.
A structural engineer who knows all about roof truss design may be able to come up with a design that allows you to modify all the small angled pieces of 2x4 that connect between the top and bottom chords.
Use a chalk line to draw a line along the floor parallel to the lower edge of the roof from one end of the attic to the other on both sides.
Step 1 measure the width of your roof trusses from inside to inside.
My recommendation is really simple.
One use of trusses is for the support of a roof they are similar to roof rafters.
Home owners should avoid cutting or modifying their roof trusses.
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When a truss becomes damaged cut or modified there is a chance of a structural overload or that they will not perform properly.