I just had my roof replaced using Owens-Corning TruDefinition shingles, and the purpose of my letter is to inquire about how to repair an improper nailing pattern?
To best describe the situation, I am going to reference a 3 tab shingle for location purposes of the nailing problem, even though I used the full-width architectural shingles that don’t have the 2 openings between the tabs on the lower part like a typical 3 tab has. On the 3rd tab from the left, or the far right tab, the roofer put nails located in the middle of that 3rd tab, i.e. about 6" in from the right-hand end. Now, the next shingle goes up the 5-5/8" and over to the left the 6-1/2" in the stair-step manner, basically as all shingles are laid, with slightly different measurements for architectural shingles verses 3 tab shingles. The problem is that now that nail in the middle of the 3rd tab on the row below is directly under the right/left butting ends of the adjoining shingles in the row above, which advertently is a leak waiting to happen in the near future, if not immediately.
Besides completely tearing off the entire roof and replacing the shingles with new ones, AND having them nailed in the proper manner, do you know of a feasible and practical fix that will last the same length of time as the 30-35 years life expectancy of the shingles? One guy mentioned putting roofing tar over the nails, until I described and explained the horizontal expansion and contraction of the shingles when the temperature rises and falls, thus causing the horizontal movement of the shingles and roofing tar against the stationary nails, thus eventually causing a leak. Any other ideas…???
Any suggestions or remarks are greatly appreciated.
Sincerely,
Steve