Mould & Mildew
Black mould isn't just unsightly; it actively digests window seals and uPVC. Learn how we safely eradicate fungal decay to protect your home.
Black spotting commonly found on exterior window frames, silicone seals, and under soffits is far more insidious than simple grime. This is a kingdom-level fungal colonizer—most commonly mould and mildew. It thrives in high-humidity microclimates, particularly in areas shielded from direct sunlight, such as under eaves and within conservatory joints.
The Black Spotting Phenomenon
Black spotting commonly found on exterior window frames, silicone seals, and under soffits is far more insidious than simple grime. This is a kingdom-level fungal colonizer—most commonly mould and mildew. It thrives in high-humidity microclimates, particularly in areas shielded from direct sunlight, such as under eaves and within conservatory joints.
The Enzymatic Digestion of uPVC
Unlike plants, fungi must "eat" their surroundings to survive. Mould actively secretes specialized enzymes designed to hydrolyze and digest the plasticizers (the softening chemicals) found in modern uPVC, silicone sealants, and exterior polymer paints. As the mould feeds, it permanently extracts the essential oils that keep your windows weatherproof.
The Risk of Ignoring Fungal Growth
If left untreated, or if simply wiped with a dry cloth, the fungal hyphae (roots) remain embedded in the plastic. Over time, the continuous digestion of plasticizers causes your window frames to become highly brittle and your silicone seals to shrink and crack. This leads to catastrophic thermal failure, drafts, and severe water ingress into your home.
Polymer-Safe Decoupling
To safely manage mould, we utilize a forensic approach called Polymer-Safe Decoupling. Using 0.00ppm pure water combined with targeted, non-caustic biostatic treatments, we effectively emulsify and lift the fungal biofilm away from the surface. This halts the enzymatic decay completely without stripping any further essential oils from your expensive window frames.
Preserving Conservatories & Fascias
This meticulous attention to material science is why our UPVC Cleaning, Fascia and Soffit Cleaning, and comprehensive Conservatory Cleaning services are industry-leading. We don't just make the plastics white again; we actively halt the structural degradation of your building's critical weatherproofing components.
Health, Safety, and Longevity
Mould on the exterior of a building frequently signals potential health and air quality risks for the interior. Trust our 8-year award-winning family business to sanitize and secure your home's envelope. Contact Shining Windows via our Live Chat or call 07852 734718 to schedule a comprehensive exterior valet today.