Most common attic trusses for homes and garages are made with 2x4 s.
Moving roof joists.
These joists are below the beam and are tied to it by 2x4.
Let s compare common roof trusses with the roof framing materials that were used in your parent s house.
In order to gain space while still supporting the roof adequately you will need to build a short support or pony wall to run along each side of your attic before removing the the webbing braces in your trusses.
When you raise up the ceiling joists you are creating a structure which acts something like a truss with extended legs.
Next the end truss is attached and each of the successive trusses.
The ceiling joist 2x4s are running at right angles to the beam and rafters across the 12ft span of the room.
When setting roof trusses the first step is staging the individual trusses on the walls.
I am thinking that if i move the joists one at a time by cutting them loose from the top plate and the roof rafters and then shortening them the appropriate length they will move up nicely without affecting the structure at all.
We were told that the joists are not providing structural support and were merely for affixing the flat ceiling.
The size of the ceiling joist also is accounted for in joist spacing.
Although 2 inch by 6 inch lumber is used most often in ceiling construction to support 5 foot by 8 foot sheetrock the material commonly used for ceilings other sizes of lumber may be used such as 2 inch by 4 inch and 2 inch by 8 inch lumber.
While they look the same you probably didn t notice the subtle differences.
Room in roof trusses can be craned into place to form the shell of a ready made new loft room with the insulation placed above the rafters for maximum thermal efficiency.
How to stop roof trusses from moving.
While prefab trusses are a serious shortcut to a stronger roof they don t allow the same uninterrupted interior space as their older cousins the common rafters.
The exposed beam ceiling look is one that many owners of conventional flat ceilings desperately want.
The further up the rafters you go the more thrust the hybrid roof structure is going to create on the walls.
The ceiling joists hold your walls together by resisting thrust generated by the rafters.
Watch this video before.
Your parents roof rafters were probably made from 2x8 s and could have been 2x10 s or.
The main problem with raising the roof is that it requires planning permission and there s a fairly good chance this will be refused especially for terraced or semi detached homes.
I would like to move the joists up 12 to create better head room i m 6 3 so the shower in the short ceiling bothers me.
