Garage Roof Replacement: 3 Mistakes to Avoid

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  • 48-60 hours
  • Intermediate
  • 2,500-6,000

A garage roof replacement isn’t an easy project to tackle, and it will take some time to complete. If you do not hire a contractor to help you, you will need to avoid some common mistakes to ensure that your final result is structurally sound. Consider the following as you plan and work on replacing your garage roof.

1. If Your Roof Has Asphalt Shingles

Asphalt shingles are heavy and need to be entirely ripped off the roof. You will also need a dumpster to cart it away. Depending on how many layers are on the roof, it will need both a lot of work and a lot of carting. It might not sound so bad when you start, but climbing up and down the ladders to pull off the shingles will be back-breaking work.

Be prepared for a very long job. The more people you can talk into helping you with the garage roof replacement, the better. It would be especially helpful if you can find people who have done it before.

2. Check the Timbers

Once your roof is clear of the asphalt shingles or whatever covering it had, you will need to check the roofing timbers and replace any that look at all suspect. In most cases, the roofing timber should be fine as it is usually the actual roofing sheets that need replacing. However, if in doubt about any particular timber, it is best to replace it now.

3. Hire Tools

Once the roof is cleared, its time for the garage roof replacement to be attached. If you don’t have the proper tools to do the job, you can rent them. It will cut the time and work down tremendously. You require a good eye to keep the replacements on straight, especially if you are replacing with shingles.

Each shingle needs to be nailed into place and has to be straight. Attaching them with an air gun is a lot faster than a hammer and nails. If you’re doing the garage roof replacement with roof sheeting, it is a lot easier, but you will require at least 2 people to get the sheets into place. Remember that if you do not have a head for heights, this is not a job for you to tackle. You will be standing on open trusses, some of which are way up in the air.

If you are using roof sheeting, make sure that the overlap is adequate and you use roofing nails with covers every 2 to 3 bumps along. The nails go on top of the bumps, not in the grooves. The water runs along the grooves, so the nails must be out of the reach of the water. Once the roof is in place, you can attach the gutters.