Sometimes it’s better to bite the bullet and see what’s really going on under there.
Couldn’t agree more. I remember pulling up a couple layers on an old bungalow—looked fine from the outside, but underneath? Total compost heap around every vent and valley. That’s when I started pushing for full tear-offs, especially if you’re thinking about upgrading to a cool or green roof. Anyone here tried adding insulation or a living roof after a tear-off? Curious how folks handled the extra weight and drainage.
Full tear-off’s the only way I’d go if you’re thinking about a living roof. I did one on my 1950s ranch—structural engineer checked the joists, and we beefed up a couple spots. Drainage was trickier than I expected, but worth it for the insulation boost and stormwater control. It’s not cheap, but patching over old layers just hides problems and limits your options down the road.
- Seen a lot of roofs with multiple layers during inspections—usually means hidden rot or old leaks.
- Did a tear-off on my own place (asphalt shingles, midwest winters). Found some nasty surprises under the old stuff, but fixing it right saved me headaches later.
- Full removal’s pricier up front, but you get to check the decking and fix any soft spots.
- If you’re in a spot with heavy snow or rain, drainage and weight really matter.
- Adding a new layer is tempting for cost, but I’ve seen it shorten roof life and cause weird ventilation issues.
- Not saying it’s never okay, but I’d lean tear-off if you can swing it... peace of mind’s worth a lot.
Had the same debate last year when my 25-year-old shingles started curling up. I’m in Michigan, so winter weight is a big deal. I almost went with a second layer to save some cash, but after pulling up a few shingles and finding some soft plywood, I bit the bullet and did a full tear-off. It wasn’t cheap, but I’m glad I could replace the rotted spots and add ice/water shield. Not sure I’d trust a second layer unless the decking was in perfect shape... and honestly, how often is that the case after 20+ years?
Not sure I’d trust a second layer unless the decking was in perfect shape... and honestly, how often is that the case after 20+ years?
That’s the big issue right there. Once shingles start curling or you see soft spots, there’s usually more going on underneath. I’ve seen folks try to save money with a second layer, but end up with leaks or sagging later. Did you notice any insulation issues after the tear-off, or was it just the decking that needed work?