How To Seal Roof Trim

Cut the tip on a tube of exterior waterproof caulk at a 45 degree angle.

How to seal roof trim. As you install the z trim you should back it up a little bit from the edge of the roof so that it doesn t get in the way when you want to bring your trim down. Use the cutting tool on a caulking gun or a utility knife. I show you how to seal rv roof seams yours. How to seal rv roof seams with dicor lap sealant this is an easy job you can do yourself and have great results.

Don t forget the ends which are most susceptible to water. The trim strips that lie flat on top of the camper at the front and back are generally covered with an rv lap sealant just like the screw heads on all the roof fixtures. Cut a length of trim allowing a few inches over your roofs measurement. Pierce the inner seal of the tube with the tool attached to the.

Here is a video on how to seal a flat roof permanent it does not required a lot of skills just time to let it dry completely hope it beco. Prime the new trim on all faces with a good primer paint that will seal the wood. I ve already prepared this trim and you can see beneath it that we re going to install it using z trim as we have throughout the rest of the project. Begin fitting by pushing the start of the new trim on to your roof edge close to the intended start point then slide the trim to your start point with a few hard shoves.

Make sure the end of trim you re starting with has no metal ribs exposed. To avoid this seal all cut edges by sanding them with 320 grit sandpaper then wiping the edges with acetone. Though pvc is considered impervious to moisture this is not always true. I ll make sure to use tape seal in between the flashing and the top of the z and we ll use pop rivets for a concealed fastener installation.

Ripping pvc trim exposes the open interior cells. I m going to fasten this using pancake head fasteners making sure to thread the butyl tape as i go and install these fasteners every 12 inches going up the z trim.