Kitchen and laundry room waterproofing: a practical guide to prevent leaks
How to waterproof kitchens and laundry areas to prevent leaks to downstairs neighbors, damp walls, and floor damage: systems, key details, and common mistakes.
ImperMyna Blog
Waterproofing guides, tips and field experience
Articles built from real projects in Madrid and Toledo to help you make better technical decisions.
Waterproofing an inner courtyard (lightwell): solutions, costs, and common mistakes
Practical guide to waterproofing an inner courtyard/lightwell: how to pinpoint the source, which systems work (overlay vs. full rebuild), typical cost ranges, and frequent failures in apartment buildings.
Party wall waterproofing: how to stop leaks at parapets, caps, and façade junctions
Practical guide to diagnosing and fixing leaks caused by party walls and junction details (parapets, wall caps, joints and flashings), with recommended materials and key detailing tips.
Industrial roof waterproofing with PVC or TPO: a practical guide to prevent leaks
How to choose between PVC and TPO, how they’re installed, and the critical details (drains, parapets, joints, skylights) that make or break an industrial roof refurbishment.
Waterproofing a balcony with a railing: anchors, junctions, and how to stop leaks
Practical guide to fix balcony leaks around railings: critical points (anchors, parapets, junctions), options without full demolition, and common mistakes in apartment buildings.
Waterproofing a gravel-ballasted flat roof: common problems and long-lasting fixes
A practical guide for buildings and HOAs: how to spot failures on gravel-ballasted flat roofs, what systems work best, and how to repair without costly mistakes.
Waterproofing skylights on roofs: key flashing details to prevent leaks
A practical guide to stop skylight leaks: critical points, solutions by roof type, common mistakes, and what to request in a professional repair in Madrid.
Fibrocement (asbestos-cement) roof waterproofing: safe, long-lasting options
A practical guide to stopping leaks on fibrocement/asbestos-cement roofs: diagnosis, waterproofing options (often without removal), compatibility, safety, and when replacement makes more sense.
Tile roof underlayment waterproofing: breathable membrane, steps, and common mistakes
A practical guide to waterproofing a tile roof from underneath: when it’s needed, how to choose a breathable membrane, how it’s installed, and the mistakes that cause leaks.
Waterproofing a metal roof or sandwich panel roof: leaks at screws, overlaps and skylights
A practical guide to stopping recurring leaks on metal roofs: diagnosis, critical points (screws, overlaps, gutters, skylights) and long-lasting retrofit solutions without replacing the whole roof.
Balcony and cantilever waterproofing: slab-edge and drip-edge solutions to stop leaks
Practical guide to waterproofing balconies and cantilevers: critical details (slab edge, wall junctions, drip edge), recommended systems, and common mistakes in multi-owner buildings.
Blisters and bubbles in waterproofing: causes and fixes (done right)
Learn why blisters and bubbles appear in roof and terrace waterproofing, how to diagnose the root cause, and which repairs work depending on the system.
Solar panel roof waterproofing: how to prevent leaks at anchors and cable penetrations
A practical guide to waterproofing roofs with solar panels without creating leaks: anchors, cable penetrations, critical details, material compatibility, and maintenance for multi-family buildings.
Planter and green roof waterproofing: a practical guide to prevent leaks
How to waterproof planters and green roofs the right way: layer build-up, drainage, root barrier, critical details, and maintenance for buildings and HOAs.
Bathroom and shower waterproofing: a practical guide to prevent leaks to the downstairs neighbour
A practical guide to waterproofing bathrooms and showers: critical details, material options, execution steps, common mistakes, and warning signs to avoid damp and claims.
Waterproofing expansion joints: solutions to prevent leaks on roofs and terraces
A practical guide to spotting leaks caused by expansion joints and choosing the right sealing and waterproofing system for flat roofs, rooftop terraces and walkable decks.
No-demolition terrace waterproofing with polyurethane resin: when it works and how it’s applied
A practical guide to waterproofing a terrace without removing the floor using polyurethane resin: substrate requirements, application steps, key details, and common mistakes.
Waterproofing warranty: what it should include and what to ask before you sign
A practical guide for homeowners and property managers: what a waterproofing warranty should include, typical exclusions, required documentation, and how to claim if leaks appear.
How to find the source of a water leak: condensation, rain infiltration, or a plumbing leak (quick guide)
Learn how to tell condensation apart from rain infiltration and plumbing leaks. Clear signs, simple checks, and when to call a professional in Madrid.
Waterproofing quote: what it must include and how to compare offers
A practical guide to understanding a waterproofing quote: essential line items, measurements, warranties, and red flags—useful for owners and property managers in Madrid and Toledo.
Deck roof waterproofing (inverted roof with plots): best solutions and common mistakes
Practical guide to waterproofing a deck roof (inverted roof with decking or slabs on plots): layer build-up, recommended membranes, critical details, and the most common causes of leaks.
Waterproofing a facade: how to fix rain leaks without unnecessary works
A practical guide to identifying the source of facade rainwater leaks (cracks, joints, windows) and choosing the right waterproofing solution for homes and apartment buildings.
How to choose a waterproofing company in Madrid: quotes, warranties, and trust signals
A practical guide for homeowners and HOAs: what a waterproofing quote should include, which warranties to request, and how to spot a reliable contractor in Madrid and Toledo.
Spray polyurea waterproofing: what it is, benefits, and when it makes sense
A practical guide for homeowners and building managers: what spray polyurea is, best applications, pros and cons, and what to require for a reliable job in Madrid.
Pool waterproofing: how to spot leaks and choose the right repair
Practical guide to confirm and locate pool water loss and choose the best waterproofing repair option (liners, membranes, and targeted fixes).
Roof waterproofing: how to fix leaks without rebuilding the whole roof
A practical guide to finding the real source of a roof leak (tiles, valleys, chimneys, gutters) and choosing the right waterproofing repair—especially useful for buildings and HOAs in Madrid.
Rising damp (capillary moisture): causes, how to spot it, and effective solutions
Learn how to identify rising damp, tell it apart from condensation or leaks, and choose the right waterproofing solution for your walls.
Parking garage waterproofing: solutions for trafficable slabs, ramps and expansion joints
Practical guide to waterproof parking garages: common leak points, systems for slabs and ramps, joint detailing and maintenance for buildings.
Basement and retaining wall waterproofing (negative-side pressure): solutions and common mistakes
How to waterproof basements with negative-side water pressure: diagnosis, interior solutions, and common mistakes to avoid.
EPDM vs TPO/PVC vs asphalt membrane: which waterproofing system to choose for flat roofs and terraces
Compare EPDM, TPO/PVC and asphalt membranes: pros, durability, maintenance and when each system makes sense for roofs and terraces.
Waterproofing and CTE DB-HS1: warranties and how to choose a contractor in Madrid
Learn what Spain’s CTE DB-HS1 requires for waterproofing, what warranties to request, and how to choose a reliable contractor in Madrid and Toledo.
Roof and terrace waterproofing maintenance: a checklist to prevent leaks
A practical maintenance checklist for roof and terrace waterproofing: inspections, critical points, warning signs, and when to call a professional.