Laminated Fiberglass Walls

Pbutler97 wrote:

3 tons wrote:
Not unlike a 2x4, the advertised 2” wall thickness is merely a nominal figure whereby 2” camper wall thickness is actually at 1.5”, but still good and not to be dismissed…

The premium exterior siding product is made by Lamilux (particularly Lamilux uber glossy 4000), used by Eagle Cap and Adventurer (superior to Filon, especially so of Filon atop luan…).

https://www.lamilux.com/composites.html

Also Azdell is a top-tier composite product totally unrelated to cheap Luan, and is unaffected by moisture.

https://azdelonboard.com/

3 tons

Except although Azdel might be top tier, the panel is laminated together with water soluble adhesives thanks to the EPA so if water gets in there you can still have the same end result, delamination. The only difference is the Azdel will not come apart itself like luan might, and it wont rot. But if the Azdel releases from the foam core or the Filon/Fiberglass releases from the Azdel due to the adhesive failing, you've gained absolutely no benefit.

It sure looks good on websites and sales brochures though, sort of like "4 season", "highest quality", "Amish Crapmanship", etc.

Given the choice I'll take the Azdel but it's not the bulletproof thing that some people think it is. A lot of manufacturers will only use Azdel for the outer substrate and still use Luan for the inner layer (Layer that wall covering is applied to). What does that gain you?