Ridge Rafter Hangers

[GEO-PAR]

Hi guys, 

 

I have a cut roof (ridge steel with timber fixed inside the flange, then rafters fixed to these timbers).  I have just been told by S.E I cannot fix my rafters into the timbers inside the steels using 'skew nailing' and that it needs to be joist hung.  Looking online, these varying pitch joist hangers seem crazy money?  Like £5 plus per hanger? 

 

I found this product at a sensible price but it only goes to 30 degrees, whereas I have a 47 degree pitch roof: https://www.strongtie.co.uk/en-UK/products/ridge-rafter-connector-rr  

 

Anyone have any ideas? 

 

Cheers 

[Temp]

On this type of roof the rafters "hang" from the steel so yes nails not enough.

 

Think our SE specified steel straps joining one rafter to the other over the top of the beam.

 

[ProDave]

39 minutes ago, Temp said:

On this type of roof the rafters "hang" from the steel so yes nails not enough.

 

Think our SE specified steel straps joining one rafter to the other over the top of the beam.

 

We had similar.  I don't even know the make or type, the builder supplied them to the SE's specification.  They pass over the top of the ridge beam as one piece and down to the rafters either side.  They looked quite substantial metal not like most joist hangers.

[JohnMo]

Just looked at the photo of our roof our rafters go above the ridge beam. No hangers were needed.

[GEO-PAR]

Anyone's thoughts on doing this?  Just using regular joist hangers and putting a cut in to the rafter? I guess it's one for S.E 

 

Edited Thursday at 15:23 by GEO-PAR

[Oz07]

I've done exactly this for a connection to purlin before. There was no detail on any drawing but had these hangers and the height of the purlin was dictated in line with the rafters. Was where a cut roof met trusses. Not fell down yet. 

[Temp]

22 hours ago, GEO-PAR said:

Anyone's thoughts on doing this?  Just using regular joist hangers and putting a cut in to the rafter? I guess it's one for S.E 

 

 

No don't do that. Some of the load tends to pull the rafter away from the ridge beam.

 

Check with your SE.

 

[GEO-PAR]

I sent this as a sketch to my S.E and he said it was fine to birdsmouth it to sit in the hanger? Yellow is the timber rafter.

 

[Nickfromwales]

On 26/06/2025 at 19:32, Oz07 said:

yet

😆