Face Nailing

[Dappy]

I have about 40 shingles on my home (2 yrs old) where the roofers placed entire top rows of shingles with two face nails on each one. It looks horrible. I have been getting conflicting answers on the internet. Some sites say this is okay, while others say it will eventually leak. Other homes in my neighborhood do not have this ugly sight. My question is this: is this acceptable, or should I find someone to fix it before it becomes an expensive problem.

[Jerry Peck - Codeman]

Hi Dappy,

There is no reason or excuse (other than laziness) to leave nails exposed on shingles, and it is no definitely not allowed.

Each face nail is a leak through the roofing system. Not a leak waiting to happen, but a leak, as the nail creates that water path all the way through the shingles and underlayment from the top surface of the shingles down. You may not see the leak for a while, maybe years if you are lucky, but the leak is there.

Yes, hire a licensed competent roofing contractor to replace all those face nailed shingles. It will be much less expensive now than when the roof sheathing needs to be replaced in the future.

Now, to further expand on the answer requires asking another question, and it may change the above correction method (not change the fact that the face nails should not be left exposed, just 'how to correct the problem'.

You said "I have about 40 shingles on my home (2 yrs old) where the roofers placed entire top rows of shingles with two face nails on each one. It looks horrible.", so here is my clarifying question: Are those the top row (course) of shingles on each side of the ridge at the top of the ridge?

If so, then I have a follow-up question: Do you have ridge caps installed?

It is possible that they installed the shingles up to the ridge and did not install the ridge caps. If this is the case, you still have the exposed face nail problem, but instead of replacing those shingles just have ridge caps installed.

Ridge caps are basically single tabs of three tab shingles with a bevel cut off the edges of the non-exposed part of each tab, these ridge caps (single tabs) are laid centered over the ridge starting at one end, one nail is driven through each side of the first ridge cap, then the second ridge cap installed covering the sealant strip on the first ridge cap, attach with a nail on each side, then proceed across the roof to the opposite end. At the opposite end of the ridge the last ridge cap will have the two nails exposed, cut one more ridge cap, cut the finished tab only part off the single tab of shingle, then nail that over the two exposed nails in the last ridge cap.

That leaves you still having two exposed nails, and you have two options to cover those two nails: 1) cut another finished tab like the first one and secure it down with plastic roof cement; 2) cut two pieces of roof membrane tape about 2 inches by 2 inches, which is a fiberglass tape which is asphalt impregnated, place a dab of plastic roof cement over each of the two exposed nail heads, place one of the cut pieces of roof membrane tape onto each dab of plastic roof cement, press in place with a putty knife, using the putty knife, cover those two pieces of membrane with a little more plastic roof cement. You now have *no* exposed nail heads.

Just like the job should have been done originally - no exposed nail heads.


Okay, do you have ridge caps installed and the two rows (courses) of shingles you are talking about are lower than the ridge caps, or do you just not have ridge caps installed?

I'm going to guess that you just do not have ridge caps installed and someone forgot to come back after lunch break and install the ridge caps. If that is the case I would call the original roofer and ask him 'Remember when you told me your guys were coming back to install the ridge caps? I was outside the other day and just noticed they never did.' Give the roofer the benefit of the doubt first, giving him a chance to correct it. If he does not, then go from there.

[Dappy]

Great points! It did not cross my mind. No... not near any ridges. The home has 3 dormers. Where the dormer ends at a vertical wall, there reamins about 6 feet of shingles to the edge of the roof. The line of shingles I was talking about is the first row in front of the end of the dormers, at the top of that 6 feet or so of shingles. Is this some kind of code violation? What does it do to the warranty?

[Jerry Peck - Codeman]