EPDM edging

[Peter500]

I'm doing an EPDM roof (Resitrix) and it looks like there are two common types of edging. There is the "Sure Edge" and the metal edge trim.

My roof isn't square, so a couple of corners aren't 90 degree angles. This means that the plastic edging would need to be cut and glued, but I think I would struggle to make it look good.

If I were to use the metal edging, then I would have concerns about rust, but I can't even find info about what it's actually made of other than "metal". I would imagine the cut edges would eventually rust, even if it took a few years. It's also assuming that the corners would be done by cutting the back and bending, would could also lead to rust.

Has anybody used either of these or has any advice?

 

[Vinty]

I'm doing an EPDM roof (Resitrix) and it looks like there are two common types of edging. There is the "Sure Edge" and the metal edge trim.

My roof isn't square, so a couple of corners aren't 90 degree angles. This means that the plastic edging would need to be cut and glued, but I think I would struggle to make it look good.

If I were to use the metal edging, then I would have concerns about rust, but I can't even find info about what it's actually made of other than "metal". I would imagine the cut edges would eventually rust, even if it took a few years. It's also assuming that the corners would be done by cutting the back and bending, would could also lead to rust.

Has anybody used either of these or has any advice?

Some edging for EPDM is made from Aluminium.
You can get it ready made or get it made to measure from a sheet metal workshop.

 

[StephenStephen]

Have you considered wood?

 

[Peter500]

Have you considered wood?

I have considered it, but I'm a little unsure whether there would be any issues with water penetration. I believe the metal ones push down on the rubber and have an EPDM washer. It's probably a good idea, but it's not something I've seen.

 

[Vinty]

I have considered it, but I'm a little unsure whether there would be any issues with water penetration. I believe the metal ones push down on the rubber and have an EPDM washer. It's probably a good idea, but it's not something I've seen.

I used to work for a roofing company.
We fitted EPDM and Butyl rubber roofs.
We used aluminum and PVC edge trim.
The problem with using wood as edge trim is that it tends to rot over time.

 

[vixerfixer]

I have actually thought about using facia board on mine with a bead of sealer underneath.

 

[Peter500]

I have actually thought about using facia board on mine with a bead of sealer underneath.

Isn't the top of the board unfinished?

 

[vixerfixer]

Isn't the top of the board unfinished?

Turn it upside down and it’s pretty similar to the proper trim anyway.