Super basic - best ways to add screw into walls and roof for modifications?

[HeloSNA24]

If I plan to add features to the walls and roof. Got the new 19.6 NoBO. Azdel construction, PVC roof, what's the best products to utilize to screw into interior walls and roof to add solar panels without causing damage long term? Wood screws? Sealant?

[larry2c]

Here's a link to the installation I did for solar on our TT. There were a number of folks who provided input on the attachment of the panels to the roof. In the end I used butyl strips under the feet, high helix screws into the roof and then applied Dicor self leveling sealer around each foot. Finally I topped the feet off with strips of Eterna Bond.

For interior I try yo use Command hooks or the Velcro strips when I can. However, there are some surfaces they just won't stick to. For those cases I use these toggle screws.

Hope this helps!

[HeloSNA24]

Thank you