Following on from an industry report, highlighting the potential market for composite doors under the Government’s Green Deal, technical experts at ERA are reminding you that as well as the construction of the door itself, they need to look at the other factors that make for a weather-proof, and therefore energy efficient, door.
According to the report, replacing doors over 10 years old with high-performing insulating doors could produce annual energy and money savings for homeowners. However, Grouphomesafe, which offers weather protection products under the Schlegel brand, says that no matter what you put in the frame, it will not provide protection against the elements if the seal isn’t right.
The key, according to Grouphomesafe, is to ensure the right quality of seal and use the seal most appropriate to the frame. Durability is a key factor since doors, unlike windows, are subject to frequent opening and closing operations. Unless the seal is fit-for-purpose, it will fail to give long-term performance in protecting against high winds and rain: cumulatively, even a 1mm gap between door and frame can add to a significant overall breach in a doorset’s defences against the elements.
Ben Penson, Group Technical Director of grouphomesafe says: “Whilst both windows and doors can be significantly improved by the incorporation of high specification seal systems, this is an especially important consideration for entrance door sets, given the duress that the seal is put under by the frequency of use. As well as being able to demonstrate a high level of weather resistance under initial testing to BS 6375-1, the standard for the resistance of air, wind and water permeability of door sets, a seal must be able to recover from repeated compressions, with high resistance to tearing and degradation, whilst maintaining low closing forces.
This will ensure that the doorset will achieve the same weather resistance after years of service, as it did during initial testing.”
Proven for their performance and durability are the Aquamac weatherseals from Schlegel. Aquamac weatherseals are a composite product with exceptional compression set resistance. They are unaffected by rot, fungus, UV or ozone and they maintain their sealing performance over a wide range of temperatures. Offering outstanding sealing against both air and water infiltration; they have an exceptionally durable, UV stabilised liner, which paints and varnishes will not degrade. Aquamac weatherseals have low thermal conductivity values making them an ideal choice where low U-value/energy efficient requirements are specified.