I read a lot on here. I like to be very independent. But I hit a stopping point on dealing with my Taos (not ABS) roof leak issues. It appeared to start with an AC unit on top, that had the roof sagging despite the structural strut beam installed. OK, I had the AC taken off, I bought a new gasket (per Portal advice), still sitting in closet, and still considered whether to have the AC re-installed. Meanwhile a Fantastic Fan called my name. I installed the Fantastic Fan instead of the AC -- or so I thought. Same hole size. The screws going down, hit into the little aluminum so-called AC supports on underside of the roof -- then would not penetrate. What a joke. As if 4 little aluminum things glued just into styrofoam could support a 100 lb AC on the roof, jiggling down the road? At any rate, a Fan should not have been too much, or so I thought. OK, I will post photos tomorrow. But, drilling screws through the exterior thin roofaluminum shell, plus styrfoam worked OK-- until they hit the more serious "support" things. Then they did their best to tear those aluminum supports out. At same time, I was trying to install a new Lauan ceiling (to the styrofoam layer) with Marine Spar varnish I applied, using a SikA pro adhesive. I ran out of time as summer rains in Fl appeared, after thought I had it adhered. It did adhere, for at least a few days. Summer rains means serious downpours oh, about twice a day here. So I had tarped the whole thing. Now, the unveiling and finding I need to get this Fantastic Fan re-secured plus re-attach the aluminum "supports" plus Luaun which did not stay attached. At least the Luaun did not tear and is reusable. Or I could get instead, some of that FRP or whatever was recommended. But I sort of liked the looks of 3 coats of Marine Spar Varnish. Question 1: HOW do I get the longish Fan screws to go into the aluminum "supports" that gave up the ghost and tore out of the styrofoam? Drill some pilot holes and try to glue the 4 supports back in? Question 2: Is there EVER any hope of my getting the AC put back on top, with more support? I could just sell that unit, it worked. I WANT to go camping in a couple weeks but this is certainly not watertight yet. Thanks in advance. Please be kind and helpful. Bear in mind that I hate asking for help.