I've seen people try doubling up cheaper underlayments, but honestly, it usually ends up compressing unevenly over time. Maybe the real question is—are premium materials really worth the extra cost in typical residential use?
"I've seen people try doubling up cheaper underlayments, but honestly, it usually ends up compressing unevenly over time."
Yeah, I've noticed the same thing on a few jobs. Doubling up sounds good in theory, but it rarely holds up like you'd hope. Have you ever compared the warranty coverage between premium and budget underlayments? Sometimes the difference isn't just durability—it's also about how the manufacturer backs their product. Might be worth checking into that before deciding if the extra cost is justified for your situation...
"Have you ever compared the warranty coverage between premium and budget underlayments? Sometimes the difference isn't just durability—it's also about how the manufacturer backs their product."
Warranty coverage is definitely something to consider, but honestly, I've found that warranties can be a bit tricky. A lot of times, they're worded so carefully that manufacturers can wiggle out of claims pretty easily—especially if the installation isn't done exactly to spec. I've seen it happen more than once, unfortunately.
I remember one job last summer where we used a premium underlayment precisely for the warranty coverage. We followed the guidelines to a T, took pictures during installation, documented everything...and when we had an issue about eight months later, they still pushed back pretty hard. Eventually, they honored it, but it took way more effort than it should've. So yeah, premium products usually hold up better overall, but I'd still say don't put too much faith in warranty alone.
One thing I'd suggest instead of doubling up cheaper underlayments or relying heavily on warranties is just investing a bit more time into surface prep and careful installation. Making sure your decking is clean, flat, and free of any old fasteners or debris can go a long way toward giving your underlayment a longer lifespan. Also, proper fastening patterns—avoiding overdriving nails or staples—really makes a difference in how evenly the underlayment wears over time.
Curious if anyone here has experience with synthetic vs felt underlayments in terms of real-world durability? I've heard mixed opinions from different crews I've worked with, but haven't had enough direct experience yet myself to form a solid opinion either way.
