- Air sealing is huge, yeah. I always tell folks: if you can see daylight from your attic, you’re basically heating (or cooling) the outdoors.
- Power vents are a mixed bag. They help once you’ve sealed things up, but if your attic’s still leaky, they’ll just suck conditioned air out of your house. Seen it too many times after storms—folks think the vent will fix everything, but it just makes the AC work harder.
- For splitting roofs in wild weather, I’ve noticed:
- Decking matters. Plywood holds up better than OSB when moisture sneaks in.
- Fasteners—use ring shank nails, not staples. After a big windstorm, you’ll see which ones held.
- If you’re in a spot with wild temp swings, attic insulation helps buffer the roof deck from those extremes. Not glamorous, but it works.
- Had a client last year who skipped air sealing and just added a power vent. Ended up with more leaks after a hailstorm because the vent pulled in rain through every little gap.
- Not saying powered vents are bad—just gotta do the basics first. Otherwise, you’re just moving problems around instead of fixing them.
- Been on a few jobs where folks skipped the ring shank nails and went with staples—big mistake, especially after those late spring storms. Seen whole sections lift up like a flap.
- I agree, insulation isn’t flashy but makes a difference. My cousin’s place in the Midwest has thick attic insulation, and his decking looks way better than neighbors’ after those wild temp swings.
- Curious—anyone tried the peel-and-stick underlayment instead of regular felt? Wondering if it really helps with moisture or if it’s just pricier for the same thing.
Peel-and-stick underlayment is actually a solid upgrade over regular felt, especially if you’re in an area with wild weather swings or ice dam issues. It sticks right to the decking, so you get a better seal around nails and seams—less chance for water to sneak in. I’ve seen it hold up well after big storms where standard felt just didn’t cut it. It does cost more, but for spots like valleys or eaves, it can really save headaches down the line. Just make sure your decking is clean and dry before putting it down... otherwise, it won’t stick right and that defeats the purpose.
Just make sure your decking is clean and dry before putting it down... otherwise, it won’t stick right and that defeats the purpose.
You nailed it with that point. I’ve seen folks spend a chunk on peel-and-stick, only to slap it over damp or dirty decking—then wonder why they’re still getting leaks. It’s not magic if you skip the prep.
I’ll admit, I was skeptical about peel-and-stick at first. The price tag stings, especially when you’re covering a big roof. But after seeing how regular felt just curls up or tears after a couple freeze-thaw cycles, I get why people swear by the upgrade—especially in spots like valleys where water loves to sneak in.
Still, I wouldn’t bother doing the whole roof with it unless you’ve got money to burn. For most folks, just hitting the trouble spots (eaves, valleys, maybe around chimneys) is enough to keep things tight. And yeah, if you don’t get that seal right from the start, you’re basically tossing money out the window.
Wild weather’s only getting wilder these days... anything that buys you a few extra years of peace of mind is worth considering.
- Clean and dry deck is non-negotiable—seen too many “mystery leaks” that turned out to be from lazy prep.
- I usually stick peel-and-stick on valleys, eaves, and around chimneys. Full coverage is overkill (and budget buster) for most roofs.
- Noticed regular felt just doesn’t cut it here (Midwest freeze/thaw beats it up fast).
- If you’re patching, don’t skimp on flashing either... water finds every shortcut.
- Honestly, a little extra time on prep saves you a lot of headaches (and angry tenants) down the road.