Hurricane ties for exposed rafters 3

[DoubleStud]

What hurricane ties do you typically use if you have exposed 2x12 rafters? I have used only long screws before from the top but the exposed rafters are usually thick (4x). What would you use if the rafters are only 2x and you don't want to see ugly hurricane ties from under the roof.

 

[dold]

SDWC screws maybe? I've never used them but it looks like you just screw in from below the top plate into the heel of the truss / rafter.

Link

 

[DoubleStud]

dold, these will bear on a wood beam. screwing it from the bottom of timber beam may be a bit too hard.

 

[XR250]

I suppose you could pre-drill and use a long timber screw from the top

 

[DoubleStud]

XR250, I typically do that for 4x rafters on my high end house projects. Would you do that on 2x rafters?

 

[phamENG]

SDWC screws would work even if on a beam, but for a 2x12 rafter may not be long enough to avoid tension perpendicular to the grain (if you choose to be worried about such things).

An SDWH271200 from the top in a counter-bored hole could do the trick nicely.

 

[Eng16080]

A few thoughts:
[ol 1]
[li]Will the inside also be exposed? If not, perhaps you can come up with a detail with the hurricane tie on the inside and not visible from the exterior. If you do this, be careful that the connector can transfer the load into the exterior sheathing without relying on cross grain bending of the wall top plate.[/li]
[li]I could be wrong but thought Simpson might have a nice looking hurricane tie, painted black. If not, maybe they can just paint an H3 black.[/li]
[li]Perhaps you can screw the rafter to the top plate from the bottom.[/li]
[li]I wouldn't try to screw it from the top down[/li]
[/ol]

 

[DoubleStud]

ENG16080, This is for a patio/deck roof. So you have an exposed timber beam with exposed rafters on top of it (with blocking between rafters).

 

[StrEng007]

I don't know what kind of loads you're working with.
Simpson offers some decorative hardware:

https://www.strongtie.com/decorativehardware_woodconnectors/category

https://www.strongtie.com/avantcollection_outdooraccents/apva_angle/p/apva

 

[DoubleStud]

This is for more budget construction. I would put thicker rafters before I put those hardware StrEng007. They are not cheap like typical hurricane ties.

 

[Eng16080]

I've also used steel angles with one leg against the rafter and the other sitting on top of the beam. That was for a heavy timber design, but it should work here. Not sure if that interferes with blocking.

I suppose screwing down from the top might be possible if you can prebore like half the rafter depth.

 

[kissymoose]

A34 on top of the beam?

 

[SWComposites]

hmmm, make it cheap, make it look pretty, make it withstand a hurricane - pick any two.

 

[StrEng007]

Yep,
pretty and strong, won't be cheap
cheap and pretty, won't be strong
strong and cheap, won't be pretty