Zane Remenda
06-15-2012, 06:37 AM
Hi all,
I inspected a house where the distance of the overlap of the shingles on the roof was a bit shy of covering the bottom of the 3 tabs. You can see where the black part of the shingle is exposed in the photo.
I did a bit of research before posting here. The only thing that I could find that may be problematic is that the shingles may not have enought nails. Thus more susceptible to wind damage. Typically, a 3 tab shingle will have 4 nails into the "tar" line, then, another 4 from the above shingles. If the spacing is too long, there will be a shortage of nails holding the shingles in place.
There are also many nails that are showing without any caulking on them.
This is a 2011 development and there are about 20+ buildings similar to the one I inspected. The method of shingle installation seems to be similar on all the other buildings.
My questions is, would this be a method for the roofer to save money?
Are there any other consequences of installing the shingles this way?
Thanks
I inspected a house where the distance of the overlap of the shingles on the roof was a bit shy of covering the bottom of the 3 tabs. You can see where the black part of the shingle is exposed in the photo.
I did a bit of research before posting here. The only thing that I could find that may be problematic is that the shingles may not have enought nails. Thus more susceptible to wind damage. Typically, a 3 tab shingle will have 4 nails into the "tar" line, then, another 4 from the above shingles. If the spacing is too long, there will be a shortage of nails holding the shingles in place.
There are also many nails that are showing without any caulking on them.
This is a 2011 development and there are about 20+ buildings similar to the one I inspected. The method of shingle installation seems to be similar on all the other buildings.
My questions is, would this be a method for the roofer to save money?
Are there any other consequences of installing the shingles this way?
Thanks