Stormguard Replacement Rubber UPVC Window Door Gasket Seal Draught proofing excluder (12 Meters, White)

• Universal rubber seal - Suitable for both windows and doors
• Original UPVC window seals can become compressed or perished therefore may need replacement. Window seals act as both draught proofing saving on your heating bills but they also act as soundproofing. Replacement may be needed where your existing rubber window/ door seals have become compressed and are not fully sealing the gap in the window when it is closed, this will then let in both air and external sound.
• Note, the original shape of the seal within your window/door may vary slightly from this rubber seal profile/shape. This should not affect the performance of your window/door in most circumstances this product will provide a new airtight/soundproof seal.

Why Draught Proof? - Your house or commercial property will lose heat during cold weather partly due to poor thermal insulation, but also due to the air-leakiness of the building. This warm air loss is technically known as infiltration or permeability and is measured in metres cubed per hour per square metre of floor area. A typical building built 1900 to 1990 will lose around 20-30 metres cubed of air per hour per square meter of floor area. This is due to natural leakage through the fabric of the building, but largely through gaps around windows and doors. Good use of draft proofing could reduce your air permeability to around 8-10 metres cubed per hour which is a good low cost way of reducing your heating bills. The amount of air infiltration to your property will also depend on its exposure to wind so if you are on a hillside or near the coast then it is even more beneficial for you have good draught proofing.