Eave Soffit Detail - No bird boxes

[gonefishin96]

Trying to find a detail for how to install soffit on the eaves, not horizontal, but that matches the roof slope (5/12). I don't want to install bird boxes, I want it to look like the photo below. Are any of my sketches on the right track? Can the F-channel accommodate the angle, or does that need to be shimmed? Going to have vinyl siding and probably aluminum fascia cap. I have access to a brake. Any help or sketches appreciated!

 

[mike93lx]

Curious to hear feedback as I have a similar project. I want my eve soffit to be flat, though, so there has to be some transition to the gable end

On a side note, i also used forcefield on another project with Zip tape.. It's astounding how bad the GP tape is

 

[BillK]

If you are using vinyl soffit then I am almost certain the F channel will bend enough for it to work. I have some of both out in the garage and will take a look later on today.

However I am not sure if I like your idea of using the Aluminum facia cap to hold up the soffit ? Looks like a perfect spot for moisture to collect and start rotting the wood. I know it "should" stay dry under there but there will always be some condensation etc.

 

[gonefishin96]

If you are using vinyl soffit then I am almost certain the F channel will bend enough for it to work. I have some of both out in the garage and will take a look later on today.

However I am not sure if I like your idea of using the Aluminum facia cap to hold up the soffit ? Looks like a perfect spot for moisture to collect and start rotting the wood. I know it "should" stay dry under there but there will always be some condensation etc.

Appreciate it. Agree, I have the same concern, just can't figure out the right way! Seen a few garages that way I want it driving around, but can't get close enough to see how they did it.

I read the reviews of the GP tape and didn't even bother, Zip was also more readily available. No complaints about the GP forcefield though.

 

[gonefishin96]

This image below shows another way to do the channel on the wall size. I could then nail 1/2" J channel to the bottom of the facia board, the vinyl soffit should flex enough to slide in between the two channels, instead of nailing the soffit to the facia board like the photo below. The facia cap would then be face nailed, and wrap under the 1/2" J? Going to buy some test pieces and play around with it.

 

[BillK]

This image below shows another way to do the channel on the wall size. I could then nail 1/2" J channel to the bottom of the facia board, the vinyl soffit should flex enough to slide in between the two channels, instead of nailing the soffit to the facia board like the photo below. The facia cap would then be face nailed, and wrap under the 1/2" J? Going to buy some test pieces and play around with it.

I still dont think you want to do that. You really should have a 1X fascia board nailed to your 2x subfascia It should hang down below the subfascia board and then you put the j channel on the backside of it. Here is one picture I found when I was redoing mine a few years ago. I used Azek fascia boards instead of wood and paint etc. The second picture shows my house roof and how it is finished.

 

[Firebrick43]

This image below shows another way to do the channel on the wall size. I could then nail 1/2" J channel to the bottom of the facia board, the vinyl soffit should flex enough to slide in between the two channels, instead of nailing the soffit to the facia board like the photo below. The facia cap would then be face nailed, and wrap under the 1/2" J? Going to buy some test pieces and play around with it.

this is how i did mine. my over hang is 30" so I used a two 16" pieces of lp smart side soffit, one solid and one slotted for ventilation and had the seam fall on the center 20' 2x4 purlin. The solid panel had 2" ripped off of it. Most places i used siding nails/siding gun but a few spots I used star drive exterior cabinet head screws for future access.

 

[dave*99]

This image below shows another way to do the channel on the wall size. I could then nail 1/2" J channel to the bottom of the facia board, the vinyl soffit should flex enough to slide in between the two channels, instead of nailing the soffit to the facia board like the photo below. The facia cap would then be face nailed, and wrap under the 1/2" J? Going to buy some test pieces and play around with it.

I have seen it done as shown in the photo. There is no J channel at the fascia side of the soffit. Each soffit panel gets a nail vertically into the underside of that furring strip.
A piece of white aluminum trim coil is bent a bit over 90 degrees and covers everything up.

 

[larry4406]

Curious to hear feedback as I have a similar project. I want my eve soffit to be flat, though, so there has to be some transition to the gable end

On a side note, i also used forcefield on another project with Zip tape.. It's astounding how bad the GP tape is

Mike - this is what we do at the day job. I am guessing this is the hated "bird box"?

Perhaps the last picture you could eliminate the bird box from the gable overhang portion? But you will see the "squared-off" soffit.

Tomorrow at the day job, I will try to take some pictures of the inclined soffit vent detail we have switched to.

 

[cliffcharb]

I’m also not a fan of the visible bird box. I ended up recessing mine flush with the gable wall to hide the transition.
To do what you want I’d run a filler block nailed to the trusses and attach the f channel to that.
I had to run a filler the length of the wall as hurricane code required extra support mid way.

 

[larry4406]

As promised, here are some pictures from the day job of sloped soffit eaves without bird boxes.

The metal soffit strip changes from single ended like like shown in the prior pictures for horizontal to double ended. The bottom rip of soffit material is like 2-3" which dies into the facia. This rip is cut on a bevel to die into the inner edge of the facia. Then the lower flange of the soffit strip tucks under, then the remaining panel goes in on top of the upper soffit strip flange.

Lastly, caulk and paint makes a carpenter what he ain't.

Ignore the front overbuild on the gable as that is for the brick to die into.