YouTube features a selection of videos that explain how to install roll roofing. The site also hosts instructional videos for felt roll roofing and hot roll roofing, as of 2015.
To install a felt roof roll, first prime the area to 6 inches off the deck, which is the minimum requirement to keep it water tight. Make sure the roof is measured so the correct length of felt can be cut. Attach a gas gun to a tank. Make sure to have a fire extinguisher close by for emergencies. Heat the felt with the gas gun so that the bottom of the felt roll melts and binds to the roof.