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roofing question....
toad67
Member Posts: 13,009 ✭✭✭✭
The time has come, unfortunately, that our shingles have failed after only 11 years. Since we bought the house when it was a year old, we are the second owners and the warranty doesn't transfer to us. In the last 11 years the requirements for attic ventilation has changed with the big concern of mold. We have gotten three quotes, and two of them are pretty close. The main difference is that the attic ventilation needs to be upgraded and the two Companies want to go at it from different angles. Making it as close as I can between the two with a new ridge vent installed, one contractor wants to install new vented bird blocks on the bottom of the rafters, and the other one wants to install little "eye brows" at the bottom of the roof instead of bird blocks, along with baffles up to the ridge vent. My thoughts are telling me to go with the "eye brows" rather than punching out, and installing 30 new bird blocks. I think the baffles would be a better system, plus, the house was painted 3 years ago and still looks new. All of the bird blocks would need to be painted. Thoughts? TIA..
Comments
What is a bird block and what is an eyebrow? I know about soffit vents and I have installed a lot of them.
I don't know what the eyebrow things are, but I would go with the more conventional soffit vents because it sounds like they have more adequate ventilation, and spread it around the attic.
don't worry about painting. good ventilation is the priority even if it costs more money. you don't want your roof to rot.
11 years on a set of shingles aint bad. that's about average for average shingles. have seen cheap shingles do a lot worse. you can replace with the same, or they have 20- or 30-year guarantee shingles that cost more. I'd skip the tear-off and just overlay another set of 10-year shingles. that's a common approach that adds more protection but more weight (if you have to worry about snow) may make your roof sag a bit (or not) and some insurance companies don't like that.
when they "fail", they get crumbly and the tabs rise up like a cup. that's what happens when they get old. you can see it from the ground. if you are talking about something else, you are talking about something else.
I live where summers are really hot. I gave up on passive venting, & installed a powered roof fan on the back side of the roof near the peak. I installed a large screened vent on the end of the attic to allow cooler air to come in. That worked great, only had to replace the fan every 15-20 years.
Neal
Vents in the soffitt and several individual passive vents below the ridge line are superior to a ridge vent. The number and placement depend on roof size, configeration, etc.
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I thought getting old would take longer. :shock:
After looking for something to post, I found this website. Looks like the proper term for my "bird blocks" would be under eave intake vents, and soffit vents are continuous. The eye brow vents are the left picture.
https://cansave.ca/lomanco-ventilation/intake-vents/