Also online at: www.dijonline.co.uk 104 THE door industry journal winter 2024 Entrance, Internal, Sliding & Bi-folding Doors SEAL GAPS & STOP DRAUGHTS Draught-Proofing for Energy Efficiency What is an Air Leakage Rate? Also known as an air infiltration rate or air leakage index, an air leakage rate is the amount of air movement around an opening, such as a window, door, or skylight. It indicates the level of outside air seeping into a building through a specific area under a given pressure difference. An air leakage rating is used to assess energy efficiency, indoor air quality, and a building’s overall performance. A low air leakage rate indicates an airtight, well-sealed building envelope, while a high rate suggests ineffective sealing around door and window frames. Reducing Air Leakage Seal any gaps with renovation seals to reduce air leakage and instantly improve a building’s energy efficiency. These durable silicone seals offer an efficient and cost-effective way to restore most of the common PVCu windows and doors without replacing the entire unit. Although no seal can completely stop air infiltration into a building, fitting renovation seals will drastically reduce air leakage and prevent thermal transfer. What is Thermal Transfer? Thermal transfer involves the movement of thermal energy from an area with a higher temperature to a lower-temperature area. Silicone renovation seals will help combat heat transfer from outside or between different airconditioned rooms during warmer months. This helps to make a space more energy efficient by providing another layer of thermal insulation, decreasing energy wastage, and cutting energy bills. Minimizing temperature fluctuations and keeping temperatures stable will make any building more comfortable and energy efficient. Need to restore PVCu windows or doors to their former glory? How ZEROplus Can Help Our renovation seals are extremely durable, seal gaps up to 8mm, provide good sound insulation and are available in six profiles. They are ideal when restoring residential or commercial buildings and suit the most common PVCu systems. Ellen Renovation Silicone Seals • Available in 6 different profiles • Seal gaps up to 8mm • Extremely durable silicone • Provides good sound insulation • Stop air leakage & draughts • Prevent thermal heat transfer during warmer months • Reduce energy wastage & energy bills zeroplus.co.uk Air leakage caused by gaps around windows and doors can be a real problem— especially during the winter months. A high air leakage rating means chilly spaces, mould growth, and bigger energy bills.
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