Repair needed to roof rafter?

[larry]

Hi all,

I posted a stupidly TL;DR thread elsewhere but no responses so I thought I would break down into specific questions rather than a huge omnibus entry!

 

Essentially, do these split roof rafters need repair? And if so, how would you go about doing it? 

On another question somebody recommended foaming wood glue for a joist repair, and somebody else Cascamite. Would other of those be suitable?

 

1920s house

 

Most of the other timbers look fine (apart from the rotten ones at the end, may ask separately about that)

Timbers in loft look fine.

 

 

Ta

 

 

 

 

Edited January 11, 2021 by larry

[markc]

They are just shakes and quite normal and expected.

Cascamite is far too rigid and hard for a job like that - fantastic adhesive inside a close fitting joint.

Expanding glue could be used but wouldn't make much difference as it would really act as a filler.  If you would feel better with something being done then i would go with screws.

[TonyT]

18mm plywood either side of the existing timber and structural screws and ‘sister’ them together.

or coach bolts

[joe90]

Quite normal for older timber, I would not bother doing anything, but if it makes you feel better use d4 foaming glue in there.

[larry]

Thanks all, hugely helpful suggestions all round!!