Rafters , diagonal braces ,plasterboard (moved from Projects)

[Baggyballs]

Hi all ,

I want to pick somebody's brains please.

With my rafters now insulated I am looking to fit plasterboard but I have 2 X diagonal braces across the rafters each end of the loft (4 in total)which are 25mm. How do I use 12.5 plasterboard on the rafters etc with the braces fixed across them ? In my mind I am thinking of 25mm batons all round the rafters to make roof all level to fix plasterboard

Your knowledge & experience appreciated

 

[^woody^]

Braces are for trussed roofs, and are not required on cut-rafter roofs

 

[Baggyballs]

Hi woody , thanks

After looking at diagrams I believed some call them trusses and some call them rafters so this is still mind boggling !

When I had the house built in 2001 I paid extra for "trusses" so the loft was already done and would be silly not to.
I have these braces as I said so they must be trusses with your reply above, would you baton the trusses to make all level for plasterboard as I believe braces are there for strength and of course good reason

 

[stuart45]

Sounds like you have trussed rafters, of which there are different types. Yours sound like attic trusses. These days diagonal bracing is used.
Battening out is one way to do it.

 

[Baggyballs]

Thanks Stuart appreciated .

What's the other way just out of interest , I'm guessing put the diagonal braces behind or elsewhere ??? Just a guess

 

[stuart45]

Being a bricklayer and not a chippie it not really my field, but I can remember them bracing parts of the roof with plywood when converting a roof built with fink trusses.
You may be able to use plywood on the sloping section to replace the bracing.

When trussed rafters were first used they didn't have diagonal bracing, but some suffered from wind racking.

 

[Baggyballs]

Thanks Stuart ,

So much info and different ways to do stuff , baton seems logic to me , a chippie might say different

 

[^woody^]

If they are trusses, why have you insulated at the 'rafter' level? That's a potential condensation risk to the roof void.

You won't be able to remove braces.

 

[Baggyballs]

Hi woody ,
Think I'm confusing you , I'll take picture and show you so you know what I mean

 

[Baggyballs]

Here you go ,
The insulation is 100mm with 100mm air flow,the picture shows the braces going across which are 25mm

 

[Baggyballs]

Other pics

 

[^woody^]

Oh, it's a loft then.

No you can't remove those braces. And a ply diaphragm between the trusses is out of the question too in this case.

You need to batten out the trusses with 25mm tile battens and then plasterboard across the braces.

 

[Baggyballs]

Sorry woody didn't explain myself good did I lol
That's what I thought mate but I ain't no chippie and wanted to be sure .
Thanks for the info appreciated , I'm sure I'll be back on sometime !!!!