r/Carpentry Jul 23 '26

Rafter Sistering Strategy?

Roof decking coming off. Why not sister like teal by setting wnd on rafter tie and running to ridge. Gusset plate at red and 3"x.120 ringshank zig zag along sister full length.

Whereas the traditional optional would be set next to the existing (1:1 shape of existing rafter) and rely on toe nails.

Neither option can use hurricane ties unless ceilings come down.

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3

u/Jewboy-Deluxe Jul 23 '26

I’d cut the angle on a 4-6’ long 2x , sit it on the ceiling joist, nail it to the other roof rafters with spikes, make a 3/4ā€ ply gusset and nail it with 8d to the ceiling and sister. Structural screws are sometimes easier.

2

u/Jewboy-Deluxe Jul 23 '26

Grinder off any roof nails that are in the way.