I just had a new shingle roof installed over Thanksgiving we...

[Marney]

I just had a new shingle roof installed over Thanksgiving weekend. Last week`s severe winds ripped off a large number of shingle pieces. Some showed the proper number and placement of roofing nail holes along the mid-line of the shingle, while others showed they had been nailed improperly, up near the top of the individual shingle sheet with just two nails. What should I do to check the overall state of the roof and replace missing shingles without making things worse?
Marney

[Roofmaster]

Originally Posted by Marney

I just had a new shingle roof installed over Thanksgiving weekend. Last week`s severe winds ripped off a large number of shingle pieces. Some showed the proper number and placement of roofing nail holes along the mid-line of the shingle, while others showed they had been nailed improperly, up near the top of the individual shingle sheet with just two nails. What should I do to check the overall state of the roof and replace missing shingles without making things worse?
Marney

If you had work done by roofing company, then most companies have a warranty on workmanship. If you did it yourself then the install was done wrong. Some shingles only use two nails per shingle but with overlapping have four nailing points. (i.e. interlocking shingles)

[castro]

the problem is not the nailing schedule of the shingles, its the fact that the shingles adhesive did not have enough time to adhere to the previous courses. another problem may be that the manufacturers course spacing recomendations for the pitch of your roof were not followed. if the shingles at the peak of your roof blew off, that means that the nails were not long enough for the application, remember- the ridge has a vent and can vary in thickness up to 1 inch. if you had a professional install the shingles, take them up on their warranty. If you installed them, retrace your steps and cover all your bases.