My roof follows the design shown here
Firstly, am I right in thinking that the hangers are purely in tension and are there to help suspend the ties?
Secondly, there are 2 collars in my roof that both originally ran between the rafters at a height just below the purlin. One of the collars has been cut and moved so that it is now about two thirds the way up the roof space. My question is has this affected the roof structure in any negative way?
Would it be worth putting in some extra beams as shown in the "OPEN PLAN" truss here?
I can understand why the collar was raised - I certainly don't hit my head on it as much as the other one when I'm up in the loft. If adding the extra beams to make it an open plan truss will maintain the structure I may well think about moving the other collar up to the same level.
Any advice would be greatly appreciated.
Cheers,
Dave
Firstly, am I right in thinking that the hangers are purely in tension and are there to help suspend the ties?
Secondly, there are 2 collars in my roof that both originally ran between the rafters at a height just below the purlin. One of the collars has been cut and moved so that it is now about two thirds the way up the roof space. My question is has this affected the roof structure in any negative way?
Would it be worth putting in some extra beams as shown in the "OPEN PLAN" truss here?
I can understand why the collar was raised - I certainly don't hit my head on it as much as the other one when I'm up in the loft. If adding the extra beams to make it an open plan truss will maintain the structure I may well think about moving the other collar up to the same level.
Any advice would be greatly appreciated.
Cheers,
Dave