Right, so you’re asking about shower stalls and keeping them dry and aired out—honestly, it’s one of those things most of us don’t think about until we’re scrubbing mould off the grout at 11pm on a Sunday. Been there, done that, got the bleach-stained t-shirt.
Let me take you back to my first flat in Clapham, around 2018. Gorgeous high ceilings, dodgy plumbing. The shower stall looked fine when I moved in—tiled floor, glass screen, all very modern. But within months, there was this faint musty smell every time you stepped in. Not damp exactly, just… stale. And then one morning, I noticed a dark patch creeping up the corner wall behind the toiletries shelf. Proper nightmare.
Turns out, the previous owner had tiled directly onto plasterboard without any tanking—no waterproof membrane, nothing. And the extractor fan? A tiny, wheezy thing that sounded like a tired bee and moved about as much air. Useless.
So, waterproofing first. It’s not just about slapping on some silicone sealant and calling it a day—though, blimey, I’ve seen people try. If you’re starting from scratch, the key is creating a continuous barrier. That means tanking kits or waterproof boards behind the tiles. I made the mistake once of assuming “water-resistant” backing board was enough for a shower. It’s not. You want proper cement board or foam boards with sealed joints. And the sealant—don’t cheap out! I learned the hard way with a £3 tube from the DIY shop. Lasted six months before it peeled and went black. Spend a bit more on a good sanitary-grade silicone. Apply it on completely dry surfaces, warm the tube in your hands first—makes it smoother to gun out.
Oh, and corners! They’re the weak spot. Use pre-formed corner seals or fibreglass tape in the adhesive. My mate Liam, who’s a tilier in Brixton, always says: “Water’s lazy, it’ll find the easiest route out.” And he’s right. I once saw a leak in a basement flat in Hackney because water had tracked through a tiny gap in the shower tray seal, under the tiles, and down into the ceiling below. Took weeks to dry out. The owner was furious.
Now, ventilation—this is where most bathrooms fall flat. An extractor fan isn’t a luxury, it’s essential. But it’s not just about having one; it’s about having the right one. That pathetic fan in my old place? It had a flow rate of maybe 30 cubic metres per hour. For a decent-sized bathroom, you want at least triple that. And it needs to run long enough after you’ve finished showering. I’ve got a timer switch now—runs for 20 minutes after I turn it off. Game changer.
Natural ventilation helps too. If you can, crack a window after a shower. Even in winter. Yes, it’s chilly, but it lets the steam out. My grandma’s house in Dorset had a tiny shower room with a sash window she’d always open just a notch, rain or shine. Never a hint of mould in there.
But here’s a personal bugbear: those fancy downlighters recessed into the shower ceiling. If they’re not IP-rated properly, condensation gets in, and you’ve got a damp trap right above your head. I fitted some cheap ones in a rush once. Big mistake. Started rusting within a year.
At the end of the day, it’s about thinking of the shower stall as a system—waterproofing keeps it contained, ventilation whisks the moisture away. Don’t cut corners. And if in doubt, get a pro in for the wet areas. Cheaper than fixing a ruined wall later.
Right, I’ve rambled enough. Time for a cuppa. Hope that helps a bit—just don’t end up like me, scraping grout at midnight!