Here's how I attach my RGB strip to the roof. All my RGB strip on the roof is attached to conduit with Black cable ties. This keeps the strip nice and straight and saves lots of time on installation,storage and pulling down. To attach the conduit and RGB strip to the roof I use Cable tie mounts.These are available in bulk all over eBay They come with a double sided tape attached to the back, But this doesn't last too long. I remove the tape and use Translucent Selleys roof and gutter Silicone to stick it onto the roof surface. The cable tie mounts are left on my roof all year round. Be Sure to clean and dry the roof surface before you attach Silicone to it. My roof is old and has oxidized a bit and the silicone woudn't stick. I prepared the surfaces where the tabs were to be mounted a couple hours before by cleaning it with some metho and let it to dry,then the tabs where installed. Last piece of Advice, Be carefull.