I just looked at a roof that was just redone today and they installed new 1/2 osb over the old rotten 7/16 osb. All the soffits were/are boxed off allowing no intake ventilation with gable vents on each end and all the sheathing was spongy. The roof is a 6/12 ranch style 16sq. I simple told the HO that all the new shingles and sheathing would have to be removed to remove the old rotten sheathing. Is there ANY other way to go about this? How long will it last the way it is? I have no experience or knowledge to tell the HO about his predicament other than it needs to be tore off. This is what happens when you hire unlicensed and uninsured hacks. They only had half of the roof done when I looked at it tonight. BTW NO THIS IS NOT MY CREW OR MY GUYS DOING THIS. I just laughed. Any advice I can tell the HO. He wants me to finish it but im pretty sure I should tear up what was installed.

Any advice would be appreciated. 50 views and nobody has a comment??????

Do not bend tell him it must be tore off and done right or call someone else. Your name will spread that this is the kind of work you will do.

Joshua
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Integrity at work...www.faheyexteriors.com

Apparently, the hack doing this work owes the HO some money which is the only reason he is doing the work in the first place. Apparently, he does roofing all the time so why would he be doing shady work on this house that I looked at tonight? Is it really ok to cover old sheathing with new sheathing? I didnt think so and I would not be doing work like that. You can only cut so many corners before your square looks like a circle. The HO will realize this and ill be there replacing the roof and both layers of sheathing in a few years.

oh and as of now, im not finishing the job for the HO. He's gonna have the hack finish it and work off his debt.

Well its against code for starters. With weight baring issues, code that states if im not mistaken no more than 3/4 of an inch it might be 5/8 i forget since im tired. But you are at 1.0625 inches. That roof must be saging and wavey as hell. Not to mention the roof could cave in with all that weight. Who knows thats my 2 cents.
_________________
Taking one day at a time.
A Roofing Sales Professional

Forgot something this is funny to me what do you guys think?

A roofing permit can generally be issued while you wait.
• You will need to fill out an application, along with a copy of your driver’s
license and pay the appropriate fee.
• If you hire a contractor to do the job you should have the contractor obtain
the permit. Before the contractor starts work you should ask to see the copy
of the permit.
• You may obtain the permit as a homeowner
and have friends and family help you with
the project, but you can not hire a contractor
that is unlicensed to do the
work.
IMPORTANT NOTE:
Whoever obtains the permit
is the one legally responsible
for the work.
• After the work is complete, call
the building department for a
final inspection. If you give the
building department perm i ssion
to enter the rear yard and
there are no dogs in the yard,
you do not have to be home
for the inspection.
_________________
Taking one day at a time.
A Roofing Sales Professional

no permit is required to do roofing in this town unless you are changing the slope of the roof or adding on. It is also on the end of a 3 mile dead end road ("out in the sticks") so im pretty sure not many other than me would be following code on this house. I told the HO what I would be doing with specific details as to how I would do it right. Another thing that this hack didnt do was remove the boxed in soffit area and install proper vents since the HO had slotted soffit there.

Mitchy wrote:

Apparently, the hack doing this work owes the HO some money which is the only reason he is doing the work in the first place. Apparently, he does roofing all the time so why would he be doing shady work on this house that I looked at tonight? Is it really ok to cover old sheathing with new sheathing? I didnt think so and I would not be doing work like that. You can only cut so many corners before your square looks like a circle. The HO will realize this and ill be there replacing the roof and both layers of sheathing in a few years. oh and as of now, im not finishing the job for the HO. He's gonna have the hack finish it and work off his debt.

Covering old sheathing is a very common practice in roofing. It's commonly done where board sheathing is in existence, either semi-solid board sheathing on an older house that has improper spacing or has become unusable, and even more commonly over spaced sheathing when converting from shake to comp. Occasionally it's done to cover weak 3/8" plywood.

Even in those cases I believe it would be advisable to replace any existing rot.

I looked at the other side which was not done yet and it was 7/16 osb on 24 centers with no clips between rafters. All the soffits were completely enclosed which caused alot of mold on the 7/16 obs(I seen the underside from a chunk of one of the sheets) and it was very wavy and weak. Im assuming alot of the sheathing is rotten but cant say if it is that or just from being 7/16 on 24 centers and with no clips. The HO told me the new 1/2 sheathing was installed right over the old moldy 7/16 which he noticed since they eave end is open still since the soffit wasnt installed yet. I lifted the drip edge on the gable and sure enough it, the moldy osb wasnt removed as the HO assumed was common practice. Apparently there are mixed feelings on whether it should have been removed or not. Any facts either way other than it is too think for code. It is a 6/12 ranch so weight bearing might be a problem but other than that??????

If they were to stop the mositure problem I think the sheeting would be okay. The mold would stop 'growing'.

Is it the best way? Not at all. Can it save the HO money? Yes. Will both layers of sheeting need to be removed at the next reroof? Maybe, I can't say for sure.

What are your thoughts? Why?

All I know is that you don't like uninsureed workers.

As long as the problem is mold and not rot, I think you would be ok. Fix the ventilation and spray the mold with some bleach. 7/16 Osb with clips will sag, so I can only imagine what it would do without clips.

Just tell the HO his options, pros and cons, and the associated price and warrantee and let him decide.