Shingle installation question

[Ed Fako]

Although that bottom valley shingle should have been formed more tightly into the valley before nailing it in place, I believe that the pitch of the roof would preclude from that minor error in application from turning into a leak.

Ed

[bdoles2]

Originally Posted by Ed Fako

Although that bottom valley shingle should have been formed more tightly into the valley before nailing it in place, I believe that the pitch of the roof would preclude from that minor error in application from turning into a leak.

Ed

I agree, there's no snow around here and no worry of ice damming either.

[rgallahorn]

Heres an example of 1.5 year old shingles from SC

[Ed Fako]

What brand are they?

They look like the Tamko Presidential series I believe, which supposedly are no longer manufactured, or is it Celotex Ambassador series?

The Celotex line was absorbed by Certainteed around 2001-2002 I believe and did not carry all of the colors fromt he Celotex predecessor style.

The Tamko line was discontinued, at least from what I was informed for the midwest, about 2 years ago.

Both of those shingle styles and colors look very much like the ones in the photos.

Ed

[Joseph Hagarty, CMI]

Blistering appears to be a Manufactuiring Defect of the Shingle.

Advise accordingly to have the Manufacturer's Representative review the current condition / installation.