50 mph winds tonight

[Cdkipp]

VHB on EPDM = Bad Mojo

If you look at AMSOLARs website though, they use just VHB on fiberglass and aluminum roofs.

 

[HRTKD]

Agreed. Unless you want no rubber roof left, no panels, and some dead people behind you.

Sounds like a scene from a Chevy Chase movie.

 

[HRTKD]

If you look at AMSOLARs website though, they use just VHB on fiberglass and aluminum roofs.

Yeah, I don't have a problem with VHB on those type of roofs. Though I might change my mind on aluminum, which could probably lift, but not anything like EPDM would.

 

[Cdkipp]

Yeah, I don't have a problem with VHB on those type of roofs. Though I might change my mind on aluminum, which could probably lift, but not anything like EPDM would.

I did lose a panel in Wyoming. It was a day we should not have been driving but had no choice. I am not sure if something came loose to give it more lift but the combination of the 40 mph hour (higher gust?) and the driving speed ripped one of the 4 right off. Tore the EPDM roof. Not a good day. I never knew until we got into the campground for the night. My solar wires were hanging in front of our door.

 

[HRTKD]

It's those Wyoming winds that made me spend a lot of time planning my solar panel install. In the end, I was only about 80% sure that each mounting bracket was secured in a roof truss.

 

[Guda]

So in the rver community, the attachment is sometimes just adhesive and for big panels just 6 or 4 attachments with double screws. Every time we go down the road they are getting 60-70 mile an hour winds.

My 1st solar system was on a RV! During that build I invented THIS. I had drilled holes with the intent of filling them with epoxy to screw into. It worked great. Some holes had some insulation that made filling a lot easier. Thats how I got the idea. I have seen guys use 2 sided tape, Adhesives can be stronger than bolt.

I wouldn't knock VHB tape...

Ha! I should read down the whole thread before answering

VHB on EPDM = Bad Mojo

Yup!

Agreed. Unless you want no rubber roof left, no panels, and some dead people behind you.

Yikes! It has to have happened, thus there is video.

I did lose a panel in Wyoming. It was a day we should not have been driving but had no choice. I am not sure if something came loose to give it more lift but the combination of the 40 mph hour (higher gust?) and the driving speed ripped one of the 4 right off. Tore the EPDM roof. Not a good day. I never knew until we got into the campground for the night. My solar wires were hanging in front of our door.

Holy cow. Thats a nightmare for real. I remember testing my RV pv (just 1). 45mph, pull over get out look. 55mph, pull over, get out look & so on all the way to 80 mph. I had a V10 truck so....

It's those Wyoming winds that made me spend a lot of time planning my solar panel install. In the end, I was only about 80% sure that each mounting bracket was secured in a roof truss.

Did you not have access to the underside of the roof? I use blocks as hitting truss is to hard.

 

[HRTKD]

Did you not have access to the underside of the roof? I use blocks as hitting truss is to hard.

In an RV? The only way to get access to the sublayer of the roof would be to remove the ceiling inside the trailer. Not going to happen.