Problem: Condensation in Ducts and Dripping Ceilings
Lithuanian winters mercilessly expose all ventilation system installation errors. One of the most common and costly mistakes is using an uninsulated or poorly sealed roof terminal. Warm indoor air, traveling through a cold attic, meets uninsulated plastic and instantly turns into water.
This water doesn't evaporate; it flows right back into your home. It accumulates in the ducts, causes mold, and eventually finds its way through plasterboard ceilings, leaving dark, wet stains. Furthermore, a poorly fitting terminal base allows rainwater to seep into the insulation layer, slowly destroying the roof structure.
Change: A Dry System and an Airtight Roof
A high-quality, factory-insulated roof terminal permanently solves the moisture problem. Polyurethane or mineral wool insulation keeps the exhaust air temperature stable until it reaches the outdoors, meaning condensation simply cannot form. Your heat recovery units and ductwork remain completely dry.
Properly selected roof pass-throughs ensure absolute airtightness and aesthetics. Professional terminals are designed to perfectly replicate the waves of tiles or tin, and a wide color selection turns the element into an almost invisible roof accent. Storms or melting snow no longer pose any threat to your attic insulation.
Condensation protection – an insulated terminal is a critical investment that protects expensive interior finishes and ventilation equipment from backward moisture flow.