Switching from RO to UF membranes made my life way easier

Totally agree on the pre-filter thing - learned that one the hard way after a muddy rainstorm turned my “maintenance-free” setup into a trickle overnight. If you’re like me and your pipes are older than your favorite pair of jeans, double-check those connections. I once found a leak that was basically watering my crawlspace garden... not exactly the green roof I had in mind. UF’s been easier overall, but yeah, still gotta keep an eye on it.

That crawlspace garden line got me laughing - been there, done that, and it’s never as funny in the moment. You’re spot on about those old pipes, too. I’ve seen plenty of “maintenance-free” setups turn into weekend projects after a good storm or two. UF membranes really do seem to handle the gunk better, but you’re right, they’re not totally set-and-forget either. I always tell folks, even the best filter’s only as good as the stuff coming into it... and the connections holding it all together.

One thing I’ve noticed is that sometimes people forget to check the fittings after a big temperature swing. Pipes expand and contract, and suddenly you’ve got a slow drip that turns into a mess before you know it. Glad to hear you caught yours before it did any real damage. It’s a pain, but a quick crawl under the house every now and then can save a lot of headaches. Sounds like you’re on top of it, though.

Pipes expand and contract, and suddenly you’ve got a slow drip that turns into a mess before you know it.

That’s true, but honestly, I think folks worry a bit too much about the pipes and not enough about what’s above ‘em. I’ve seen more water damage from a leaky roof than from a busted fitting under the house. You can baby those connections all day, but if your roof lets in water during a storm, it’ll find its way down to the crawlspace anyway. Just my two cents - sometimes the “quick crawl” should be up in the attic instead.

sometimes the “quick crawl” should be up in the attic instead.

That’s a fair point. I’ve had my share of headaches from both directions - leaky pipes and a roof that decided to let the rain in one winter. Honestly, the roof issue was way more of a hassle. Water found its way down through the walls and made a mess of the insulation before I even noticed anything inside.

Curious if anyone’s actually had water from a roof leak end up affecting their plumbing or filtration setup? I switched to UF membranes last year, and while it’s been easier maintenance-wise, I do wonder if attic leaks could mess with any of that equipment if you’ve got it installed up high. Most folks seem to focus on what’s under the house, but maybe we should be looking up more often.

Also, for those in wetter climates - do you do anything extra to protect your attic or filtration gear from moisture? I’m in the southeast, so humidity is always lurking...

- Hadn’t really thought about attic leaks messing with filtration setups, but now I’m kinda paranoid.
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“water found its way down through the walls and made a mess of the insulation before I even noticed anything inside.”

Had a squirrel chew through the insulation on my condensate line last year - little guy must’ve thought it was a snack bar. Ended up with water dripping right onto my filter setup. I wrapped everything in that cheap foam pipe wrap after, but I still check for teeth marks every few weeks. UF’s been easier for me too, but nothing’s foolproof if your attic turns into a wildlife hostel.

That squirrel story hits a little too close to home... I had a raccoon (or maybe a very determined possum?) tear up some of my attic insulation last spring, and it was like they were redecorating for a party. Never realized how much wildlife can mess with stuff you’d think is safe indoors. Do you think all that chewing is about the material, or are they just bored up there?

About the UF membranes - did you notice any difference in water taste or flow rate after switching? I’ve been on the fence myself, mostly because I’m always worried about maintenance. RO felt like a hassle, but at least I knew what to expect. Curious if you’ve had to do anything special to keep the UF setup running smoothly, especially with all the critter drama.

Also, not to get too off-topic, but I started looking into green roof panels partly to keep the attic temp down and maybe discourage furry visitors. Anyone try that route? Wonder if it’s more hassle than it’s worth, or if it actually helps with the wildlife invasion.

I swear, attic critters have a sixth sense for finding the one spot you thought was sealed up tight. I had a family of squirrels move in a couple years back and they went to town on the pink insulation - looked like they were building a nest for royalty. I always wondered if it’s the warmth or just the soft texture that draws them in, but boredom probably plays a part too. Once they’re up there, it’s like their own little playground.

On the UF membranes, I actually noticed my water tasted a bit “cleaner” after switching from RO, but maybe that’s just me being hopeful. The flow rate definitely improved though - no more waiting forever to fill a pot. Maintenance has been way less of a headache so far. I just do a quick flush every month or so and haven’t had any issues, even with all the attic chaos. The only thing I’m still figuring out is how often to swap out the filters since our water’s pretty hard here.

Green roof panels are something I’ve looked into too, mostly because our upstairs gets crazy hot in summer and I figured anything that helps with temp might also make it less appealing for wildlife. Haven’t pulled the trigger yet because I’m not sure about the weight on my old rafters, plus it seems like a big upfront investment. But if it keeps raccoons out and cuts down on AC bills, maybe it’s worth it? Curious if anyone’s seen fewer critters after installing one - or if they just find new ways in.

Have you tried any other tricks to keep animals out? I’ve heard mixed things about ultrasonic repellents and those motion-activated lights... Not sure if they actually work or just annoy the neighbors.

I swear, attic critters have a sixth sense for finding the one spot you thought was sealed up tight.

You’re not wrong - those little guys are relentless. I’ve patched every nook and cranny, only to find new “secret entrances” a month later. As for the green roof panels, I get the hesitation. They’re heavy and not cheap, but I’ve seen them help with heat and noise. Critters? Mixed bag. Some folks say it helps, others just end up with raccoons sunbathing up there. Ultrasonic repellents never did much for me - seemed more like a gimmick than a fix. If you haven’t tried hardware cloth over vents and eaves, that’s been my best defense so far.

Green roof panels definitely have their perks, but I’ve seen firsthand how critters can adapt. Had a client with a sedum roof who thought it’d be a natural deterrent - less exposed wood, fewer gaps, etc. Worked for a while, but then squirrels figured out how to tunnel right through the soil layer and nest under the panels. The insulation was great, but it turned into a five-star squirrel hotel until we reinforced the edges with metal flashing and hardware cloth. Not a cheap fix, but it finally did the trick.

I’m with you on ultrasonic repellents. Tried them in my own attic after a hailstorm opened up some gaps - didn’t notice any difference except for a lighter wallet. Hardware cloth over vents and eaves has been the most reliable solution for me too, especially if you use screws instead of staples. Staples just don’t hold up after a couple freeze-thaw cycles.

Curious if anyone’s tried those new composite vent covers? I’ve seen them advertised as being more chew-resistant than standard aluminum, but haven’t run into anyone who’s actually installed them yet. I wonder if they’re worth the extra cost or just another gimmick.

Also, for folks in storm-prone areas: have you noticed critter problems getting worse after big wind or hail events? Seems like every time there’s major damage in my area (Midwest), the local wildlife gets bolder about moving in before repairs are finished. Maybe it’s just coincidence, but I’ve patched more soffits after storms than I can count...

After the last derecho here, I swear every raccoon in the county tried to move into my attic. I’ve had better luck with hardware cloth too - screws all the way, staples just pop loose after a couple freeze-thaws like you said. Haven’t tried those composite vent covers yet, but honestly, unless they’re steel-reinforced, I’m skeptical they’ll hold up to determined squirrels. The critter problem definitely ramps up after storms - guess they’re just as desperate for shelter as we are for repairs.

I’ve had a similar run-in with critters after storms, especially raccoons and the occasional possum. They’re relentless once they sense an easy entry point. Hardware cloth with screws has held up way better for me too - staples just don’t cut it once the weather starts cycling between freeze and thaw. I tried those plastic vent covers a couple years back, thinking they’d be a quick fix, but the squirrels chewed right through them within a month. Ended up replacing them with galvanized steel and haven’t had an issue since.

Funny thing is, after that last big windstorm, I found a whole family of raccoons camped out above one of the drop ceilings in our rental property. They’d worked their way in through a soffit that looked fine from the ground but was actually split along the edge. Took forever to get them out and then patch things up properly. Insurance didn’t cover any of it either, since technically it was “vermin damage.” That’s always a fun conversation.

I’m curious if anyone’s tried those composite covers with some kind of metal reinforcement? I keep seeing them advertised as “animal-proof,” but honestly, unless there’s steel mesh inside, I can’t see them holding up to determined teeth and claws. Maybe they’re better for birds or bats, but for raccoons or squirrels? Not convinced.

The post-storm critter invasion is just part of the routine at this point. Seems like every year there’s something new trying to get in - last winter it was flying squirrels, which I didn’t even know we had around here until they showed up in the attic insulation. Just goes to show: no matter what you do, nature always finds a way if you give it half a chance.

Those composite covers always look promising in ads, but I’ve seen raccoons rip right through them in my neighbor’s place. Unless there’s actual metal mesh inside, I wouldn’t trust them for anything bigger than a bird. Galvanized steel’s ugly but it works.

- Saw a squirrel try to chew through my “heavy-duty” composite cover last spring… thing looked like Swiss cheese after a week.
- Galvanized steel’s not winning any beauty contests, but it’s the only thing that’s survived hail and raccoons at my place.
- Composite’s fine for leaves, but if you’ve got critters with attitude? Go metal or go home.

Composite’s fine for leaves, but if you’ve got critters with attitude? Go metal or go home.

That’s been my experience too. I tried a recycled composite cover for my green roof trays - looked great at first, but squirrels and raccoons tore right through it in a single season. Switched to powder-coated steel and haven’t had an issue since. Not the prettiest, but it holds up to both weather and wildlife. If you’re serious about durability, especially with animals around, metal’s hard to beat. Composite just doesn’t cut it for anything more than basic debris.

Composite just doesn’t cut it for anything more than basic debris.

I get what you’re saying, but I’m still on the fence. Metal’s definitely tougher, but I hate how hot it gets in summer - my roof garden turned into an oven. Anyone tried thick polycarbonate? Wondering if it’s a middle ground or just another critter snack.

Anyone tried thick polycarbonate? Wondering if it’s a middle ground or just another critter snack.

Had a similar dilemma a few years back. Metal was just brutal in the heat - my tomatoes basically roasted themselves. Gave 16mm twinwall polycarbonate a shot. It’s held up better than I expected, especially against hail and squirrels (though raccoons did manage to scratch it up a bit). Not as cool as shade cloth, but definitely doesn’t trap heat like metal. Only thing is, after about five years, it started to yellow a bit. Still, for me, it’s been a decent compromise.

Switching from RO to UF membranes made my life way easier

- Used 10mm polycarbonate panels for a couple of greenhouse projects. Not as thick as 16mm, but still pretty sturdy.
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“Gave 16mm twinwall polycarbonate a shot. It’s held up better than I expected, especially against hail and squirrels (though raccoons did manage to scratch it up a bit).”

If you’re after something that balances heat control and durability without breaking the bank, thick polycarbonate’s probably your best bet. Just don’t expect it to be invincible - especially if your local wildlife is on the aggressive side.

I get the appeal of polycarbonate, especially for greenhouses where weight and insulation matter. One thing I’d push back on a bit - if you’re in a really humid area, that yellowing and brittleness can show up sooner than 4-5 years. I’ve seen panels start to haze up after just three summers, particularly on south-facing sides. Might be worth considering UV-resistant coatings or films if you want to stretch their lifespan. Also, if you’re dealing with raccoons, sometimes a metal mesh over the panels helps more than folks expect... not pretty, but it does the trick.

- Had a similar issue with polycarbonate on my shed roof - south-facing panels started to haze after just two years. Humidity here is brutal, so I get what you’re saying.
- Tried a UV-resistant spray last time. Helped a bit, but honestly, nothing’s perfect if you’re in a wet climate.
- For critters, I rigged up some leftover hardware cloth over the panels. Not the prettiest, but raccoons haven’t gotten in since.
- If you’re thinking about switching materials, I’d weigh the cost of replacing panels vs. adding coatings or mesh. Sometimes it’s just easier to budget for a refresh every few years.