How to put a new roof on a motorhome

Written by mona culberson
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How to put a new roof on a motorhome
Give your motorhome a new liquid rubber roof. (rv,rving image by Greg Pickens from Fotolia.com)

Hiring professionals to put a new roof on your motorhome can be expensive. Many DIY motorhome owners are saving money on labour costs by using a synthetic liquid rubber roof product applied with a paint roller. Liquid rubber roofing is a highly favourable and widely used roof application system on RVs, motorhomes and travel trailers. Both lightweight and durable, liquid rubber roofing offers high levels of protection for the motorhome roof against the elements and the sun's ultraviolet rays. Repair weak or damaged areas of the existing roof before applying the new liquid rubber roof for the best results.

Skill level:
Easy

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Things you need

  • Scraper
  • Medium bristle wire brush
  • Roof contact cement
  • Rubber repair and sealing tape
  • Roof liquid rubber
  • Five-gallon bucket
  • Drill
  • Mixer
  • Paintbrush
  • Paint roller
  • Squeegee

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Instructions

  1. 1

    Sweep all dirt and debris from the roof of the motorhome.

  2. 2

    Clean the roof with dish detergent and water.

  3. 3

    Remove all loose areas of brittle and flaking caulk with a scraper. Remove rust with a wire brush.

  4. 4

    Apply contact cement to all loose edges. Allow it to dry according to the manufacturer's recommendation.

  5. 5

    Patch all tears and torn edges with rubber repair and sealing tape.

  6. 6

    Clean the roof again with dish detergent and water. Allow the roof to dry for 24 hours.

  7. 7

    Mix the liquid rubber roof product in the five-gallon bucket according to the manufacturer's directions with a drill and mixer.

  8. 8

    Apply the liquid rubber roof product around vent flashing, along the edges and to all small areas with a paintbrush. Use long, smooth brush strokes.

  9. 9

    Pour the liquid rubber roof product onto a small section of the roof. Spread the liquid rubber with the squeegee. Smooth the liquid rubber with the paint roller. Repeat the process of pouring, spreading and smoothing the liquid rubber until the entire motorhome roof has been covered.

Tips and warnings

  • Leave the motorhome in the sun to cure the liquid rubber roof.
  • Reinforce all weak or damaged areas of the existing roof before applying liquid rubber.

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