If your RV’s skylight is cracked or broken, or just old and cloudy, we’ll show you how easy it is to replace it with a brand new one. Access to your roof and a few tools are all it takes to get the job done.
April 11th marks exactly a decade of full-time RVing for us! We drove away from our “stick house” for the last time on April 11, 2003 and never looked back. Since just about any type of motorhome, 5th wheel or travel trailer might have a skylight, we’re celebrating our anniversary with a video that just about any RVer can use.
You’ll need a putty knife or two, a can of mineral spirits, a caulk gun loaded with SureBond SB140 butyl sealant, a screw gun, an old rag and a pair of nitrile gloves (mostly to protect your hands from the mineral spirits). Of course you’ll need a brand-new replacement skylight too. Also be sure to have some extra self-drilling screws on hand just in case, since there may be more screw holes in the new skylight than in the old one.
After using your putty knife to scrape away enough sealant to expose the screw heads, remove them all with your screw gun (you could do this by hand, but there are an awful lots of screws to remove and re-install). Then use your putty knife to cut the sealant holding the old skylight onto the roof. If you have a rubber roof (or “EPDM”), be extra careful not to accidentally cut it.
Once you’ve broken the old sealant all the way around the perimeter, the old skylight will lift right off. Then use your putty knife again to scrape up any excess sealant. Now use the mineral spirits on your old rag to clean off the remaining sealant. If you have a “catwalk” roughened roof surface like we do in some areas, you probably won’t be able to get all the old sealant off. As long as you remove the excess, don’t worry about getting it all. Also be sure to be very sparing with minerals spirits if you have a rubber roof, being careful not to soak the material.
Now apply a nice thick bead of SureBond SB-140 on top of the old screw holes all the way around, and place your new skylight down, wiggling it slightly to spread the new sealant into place. Install all of the screws, keeping in mind that it is unlikely that many (or any) of them will go back into the original holes. No worries… the old holes will be sealed and the self-drilling screws will make new ones. To avoid cracking the plastic, don’t over-tighten them.
The final step is a nice bead of sealant around the perimeter and over the screw heads, and voila: you have a brand new crystal clear skylight.
To remove the inside liner of your skylight, follow the steps in our video here:
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