Also if you decide to do this you must work hand in hand with a licensed structural engineer that s familiar with wood trusses.
Modifying garage roof trusses.
You can modify the trusses but it s an enormous amount of work.
Position the 2 by 4 so that the mark you made is on its inside edge with the width of the board against the upper and lower cords on the outside of the mark toward the eaves.
I looked at couple of alternates and determined that we could work from within the garage attic modify the existing trusses so that the top part in the middle of the roof will be piggy backed on the flat part of the bonus room.
If you really want to modify the framing of your attic and roof then consult with a licensed professional structural engineer.
We looked at the structural arrangement of the garage and the surrounding area.
Home owners should avoid cutting or modifying their roof trusses.
Attic conversions are now possible by replacing the truss rafters with a shaped trusses or horizontal beams which in return create additional space.
The role of the horizontal beam is to tie the truss together and carry the load that would otherwise be sustained by the support and vertical timber also known as the king post.
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These trusses are usually engineered by a structural engineering company to carry a specific roof load.
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.
One use of trusses is for the support of a roof they are similar to roof rafters.
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.
If you live in a house with engineered manufactured trusses then don t mess with them.
Mark a line on each 2 by 4 at the top of the lower cord and the angled bottom of the upper cord.