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Question DetailsAsked on 8/4/2015

Can some give me an estimate cost to fix a ridge vent?

My house roof was replaced about 3 years ago. The roofer recommended me to replace the old vent to a ridge vent, I paid 600 bucks more to do that. Everything looks good until last Friday. My house had inspection last Friday because I am selling it now. the inspector told me there doesn't have enough space for air out through vent , it should be 1 1/2 inches for each side, but there are only a few holes, nearly nothing. I called the roofer, he don't want to repair it for me. I have pictures, but it seems I can't upload pictures. Can someone give me a estimate cost to fix this? Thanks.

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4 Answers


Assuming this company is still in business a few ideas

Call him and tell him that you are about to bring the rath of a ripped off customer down on him

1) You are placing a consumer complaint with State Attorney General's consumer fraud division.

2)Registering a complaint with

A)Angie's List

B the Better Business Bureau

3) You are calling the local TV stations Can Help desk.

You are doing all at same time cause you are out of time or he can come over this week end and fix the ridge vent so it operates in "a workmanlike manner".

Jim Casper old contractor

ps for help with gutters and gutter covers on that new home see my blogs

pps call local roofing supply house near you and ask for referal of good roofer


Answered 4 years ago by jccasper


To post pictures - use the Answer This Question yellow button right under your question, and when the Your Answer box that comes up, right above it click onthe leftmost yellow icon right above it to attach photos.

Tough case for you - but it happens - I have seen ridge vent installed with zero cutout of the underlying sheathing, so just looks like there is a vent but totally ineffective. Unfortunately, after this many years your chance of recovery from the contractor's bonding company is minimal UNLESS he gave you a contractor's warranty that is still in effect.

With metal roofing ridge vents, I have seen this remedied by CAREFULLY (with special depth stop arrangement to prevent drilling through the ridge vent) drilling many large holes in the sheathing under the vent after the fact - but HARD on the arms holding a drill over your head to do a couple hundred holes. Could also be done with a zip tool and skil saw, but again VERY tiresome and somewhat dangerous working overhead. And you would have to get agreement from the buyer about the amount of open space they will accept - would certainly look like swiss cheese in that 3-6 inch width of sheathing under the vent when they were done.

Normally, probably cheapest to remove the ridge vent from the outside (if very carefully done with a long-reach nail-removal prybar to pull the nails might be able to salvage it), do the proper cutout slot in the sheathing under it, then reinstall. Cost probably about $300-400 range for labor, and maybe zero to $300 for materials depending on whether ridge shingles and/or vent can be reused.

Sounds like an appropriate AL review on the roofer would be in order, too - and if you wanted to get nasty, a complaint to the state licensing board and local building official about his unprofessional installation and subsequent refusal to fix it too. Could have been he is ignorant of amount of opening required (and did not read instruction that come with the vent) or just took a cheap way out because he figured you would never see it.

Answered 4 years ago by LCD


Thanks a lot, LCD. I was able to attach a picture according your instruction. As you can see, there are only a few holes by hammer, they didn't even use a saw to cut. The tempeture is very high in attic, it potentially can cause a fire, the inspector said so.

Answered 4 years ago by Guest_9610239


That is indeed a scab job, and would never pass inspection.

I would say get a roofer or two to come out and give a bid - while they might figure on doing it from the inside using a skil saw or more likey a counter-rotating blade saw (reduces risk of kickback injury) it will certainly make for sore arms for the operator. You would have to discuss them marking a cut line first so they do not accidentally cut into the ridge vent skirt, where it is fastened, or into the ridge vent itself. Might do it for a couple hundred $ - which should include removal of the debris from the attic so the buyer's inspector does not ding for that too.

Otherwise, outside solution is remove the ridge vent (which should be reusable if taken off carefully by prying the nails up with wide nail-lifter pry bar - NOT a nail-cutter bar, which will likely tear the plastic vent), skil saw cutting of the slot, replacing the vent, and replacing the ridge shingles if vent is shingled over. Those are the tough ones to take off intact - may be cheaper to just rip off and replace with new shingles, though they will not be an exact match for the existing roofing unless you have spares somewhere.

BTW - on the fire danger issue - if wood starts rotting due to water intrusion (which your photos show no signs of), it can auto-ignite at lower temperatures, but dry wood products burn at around 450 degrees F - and start degrading significantly at about 180 degrees, neither of which are you getting in your attic, so no concerns there. Of course, the 144 degrees you show is way too hot for an attic - if only from the added air conditioning load it will cause, but cutting out the ridge vent openings should result in a dramatic drop in your attic temp and keep the buhyear happy.

Answered 4 years ago by LCD

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