What is the preferred method for the outside corners of a 45 degree walkout bay? I am using vinyl siding. Suggestions so far have been:
1. use a standard corner but flatten it out. This just doesn’t look right
2. use two J channels. This leaves a triangular gap which doesn’t look nice either.
3. trim out with wood. This seems to defeat the purpose of vinyl exterior.
Is there a 45 degree trim corner made?
Any help is appreciated.
Replies
"1. use a standard corner but flatten it out. This just doesn't look right"
You're right, it does look odd.
"2. use two J channels. This leaves a triangular gap which doesn't look nice either."
Yeah, that's worse than #1!
"3. trim out with wood. This seems to defeat the purpose of vinyl exterior."
But it works if you cover the wood with coil stock. If you are good with a brake, you might be able to include an integral J for a much nicer appearance.
Rich Beckman
Another day, another tool.
Alside and maybe some other companies make an outside 45 degree corner piece. I haven't used them but I think you run regular J channel vertically about 2 inches back from corner and then the 45 degree 'cap' piece locks over the J pieces.
I have used regular corner post. Locked a piece in a metal brake at the outside corner and bent it open. Just pressing it in place leave a caved in look as you noted. But when you preform it with the brake it looks OK.
Another idea just popped in my head. YOu can use bendable vinyl (or metal) to form your own outside 45 degree cap to lock over J channel like the Alside trim. Just hem back the edges with a 1/2" return that engages the J.
MG
Here are some suggestions copied from Certainteed's website. I had found this earlier as it will be needed on the house we are building now:
The odd angles of bay window corners have always been a challenge. Options for bay window corners include:
1) Use standard cornerpost.
2) Use back-to-back J-channel and angle. Bend trim coil to create a cap over the J-channel to avoid the gap.
3) Use J-channel with quarter-round insert. The procedure is as follows:
Materials needed: J-channel, quarter-round corner insert.
(First, properly flash the corner.)
1) Cut two pieces of J-channel and one piece of quarter-round insert to length.
2) Pop rivet the J-channels to each side of the corner insert in at least three places.
3) Nail assembly to corner, remembering to hang the assembly from the topmost full nail slot.
4) Fit siding into J-channels. Leave 1/4" for expansion.