When you feel cold coming up from the floor, it’s not just discomfort—it’s money flying out the window. zateplení podlahy, proces, při kterém se pod podlahu umístí izolační materiál, aby se snížily tepelné ztráty do země nebo podlahy pod ní. Also known as izolace podlahy, it’s one of the most overlooked yet effective ways to make your home warmer and cheaper to heat. Many people focus on walls or roofs, but up to 10 % of heat escapes through the floor—especially in older homes or ground-floor apartments. If your floor feels chilly even in spring, or if you notice condensation near the baseboards, your floor is leaking heat.
There are several ways to do it. You can add insulation between floor joists from below (if you have a crawl space), use rigid foam boards under new flooring, or even inject foam insulation into existing gaps. Materials like mineral wool, polystyrene, or cellulose are common choices. Each has pros and cons: some are better for moisture resistance, others for soundproofing. And yes, you can do it without tearing up the whole floor—there are methods that work from below or during renovations. What matters most is sealing air leaks first, then adding the right thickness of insulation. A thin layer won’t help much; 10–15 cm is usually the sweet spot for real results.
And it’s not just about warmth. Properly insulated floors also reduce noise from downstairs neighbors, prevent drafts, and even help avoid mold by keeping surfaces dry. This connects directly to zateplení interiéru, kompletní přístup k izolaci všech vnitřních povrchů domu, včetně stěn, stropů a podlah, aby se minimalizovaly tepelné ztráty bez nutnosti zateplení fasády. You don’t need to do everything at once, but if you’re already renovating, adding floor insulation is one of the smartest moves. It pairs well with izolace stěn, proces, při kterém se zvyšuje tepelný odpor stěn pomocí izolačních materiálů, aby se snížily ztráty tepla do vnějšího prostředí, because heat doesn’t just escape through one surface—it flows through all of them.
You’ll find real examples below—how people fixed cold floors in old Brno apartments, what materials worked best in practice, and how much it actually cost. No theory, no fluff. Just what worked, what didn’t, and what you can do right now to stop losing heat through your floor.
Zateplení interiéru je jediná možnost pro staré a památkové domy. Zjistěte, jak správně izolovat stěny, stropy a podlahy, aby nevznikla plíseň a úspory tepla byly skutečné. Výběr materiálu, parotěsná bariéra a odborná realizace jsou klíčové.