Roofing Discrepancies--Experts Chime In Please

[Gary E. Sloan, CMI]

Everyone,

Subject house is a 2000 model with a 12:12 pitch (I did not climb for reasons I'll share later)

Photo 1: Exhibits curling and vertical banding (not sure if that's the right terminology). Can anyone offer an explanation on this, please?

Photo 2: Shingles are releasing in groups and sliding down the roof along with gravity. After sampling at several locations around the roof, I learned the roofing contractor used an air gun to attach the shingles. The nail heads completely or partially penetrated the shingle rendering its attachment marginal at best. The client is at a huge disadvantage and of course the builder is hoping to manage a very distant relationship on this one.

Photo 3: Just a few shingles exhibited this condition. Can someone kindly offer the reason for the wear/failure please?

Thanks in Advance,

Gary

[Barry Adair]

Search racking method of installation on this board or the web. It's common but not viewed as the best method by many for obvious reasons.

Curling at the rack seams is sometimes due to tight fit expansion and nowhere for the shingles to go but buckle at the seams. Poor fastening will account for a majority of the problems seen.

[Brian A. MacNeish]

Originally Posted by badair

Search racking method of installation on this board or the web. It's common but not viewed as the best method by many for obvious reasons.

And not recommended for most shingles by the manufacturers!!

Curling at the rack seams is sometimes due to tight fit expansion and nowhere for the shingles to go but buckle at the seams. Poor fastening will account for a majority of the problems seen.

Sheesh!!! How bad can it get out there?

[Marcel R. Cyr]

Bad install would be an understatement on this photo.
Rip it out and start anew would be my suggestion.

steep pitched roofs and high wind areas use 6 nails per shingle.
They got carried away with these nails guns again and not set right to prevent blow outs.

The main drawback of pneumatic roofing nailers is their inconsistency in nail depth. Sometimes the heads stick up a little and sometimes the heads tear into the shingle. Another frequent problem is that nails sometimes enter the roof at an angle, which makes the head stick up. Protruding nail heads can tear the shingle above them, and it stands to reason that they don't hold as well as properly nailed shingles. In my opinion, hand driving roofing nails gives a superior level of quality... it just takes much longer, perhaps two or three times as long.
A little dab-a-dua of roof cement is also required due to the wind conditions at that steep pitch.

What is wrong with these guys?

Unbelieveable.

Marcel

[Dale Duffy]

Recommend a licensed roofing contractor tear it off and start over.

I would not recommend further evaluation---RIP it off--Do it right...!!

[Peter C. Russell]

Ditto to the above, I think I know the name of that roofing company........

Acme-Hack em

[Marcel R. Cyr]

Originally Posted by prussell

Ditto to the above, I think I know the name of that roofing company........

Acme-Hack em

Have your roof all in our back pocket Company and then we walk.

HomeOwners beware;

Marcel

[Carl A. Brown]

Originally Posted by Brian A. MacNeish

Sheesh!!! How bad can it get out there?

Don't ask Brian! Thats a big can of worms!

[Barry Adair]

Originally Posted by Brian A. MacNeish

Sheesh!!! How bad can it get out there?

Just imagine the absolute worst case scenario, multiply that by infinity³ and you've just begun to scratch the surface

I can't imagine why the 12:12 wasn't climbed

[Carl A. Brown]

Barry,

Those would be some BIG numbers!

Just the surface!

[Barry Adair]

Originally Posted by cbrown1

Barry,

Those would be some BIG numbers!

Just the surface!

EEO I didn't want any discrimination flak

[Marcel R. Cyr]

And the only one that gets burnt out of that equation is the HomeOwner trying to sell the property.

Those that have done the work are long since disappeared down the highway looking for another sucker.

When will some control take place for this kind of sh$t?
Doesn't make sense does it?

Marcel

[Barry Adair]

found the solution for setting the nailing pressure



use a hammer!

[Carl A. Brown]

Barry,

That makes me wonder what the rods in my neck look like!

Whats a hammer??

[Marcel R. Cyr]

Ouch, that has got to hurt big time.

Marcel