FAQs
The 'Salesman' tells me that I have to have K glass? What is this and is it expensive?
This is partly true.
New windows & doors need to conform with Part L of the building regulations with the aim of improving the thermal performance (energy efficiency) of your property. In order to do this window systems require the use of a Low E (the E stands for emivissity) glass. K Glass is simply the brand name for one manufacturer's product - it was one of the first products launched and as such is one of the best known. However as with many things newer products - (notably the soft coat glasses that have come along) can offer a significant improvement. The Building regulations require a 'U' value of less than 2.0. K Glass achieves 1.7 in a 28mm double glazed unit. Other products can achieve 1.4 - you should ask potential suppliers exactly what they are offering you & who makes it.
Low E glass does cost more than standard 'float' glass - however this is in reality not an additional cost as it must be supplied in all domestic dwellings and represents a relativly small percentage of your overall installation.
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This is partly true.
New windows & doors need to conform with Part L of the building regulations with the aim of improving the thermal performance (energy efficiency) of your property. In order to do this window systems require the use of a Low E (the E stands for emivissity) glass. K Glass is simply the brand name for one manufacturer's product - it was one of the first products launched and as such is one of the best known. However as with many things newer products - (notably the soft coat glasses that have come along) can offer a significant improvement. The Building regulations require a 'U' value of less than 2.0. K Glass achieves 1.7 in a 28mm double glazed unit. Other products can achieve 1.4 - you should ask potential suppliers exactly what they are offering you & who makes it.
Low E glass does cost more than standard 'float' glass - however this is in reality not an additional cost as it must be supplied in all domestic dwellings and represents a relativly small percentage of your overall installation.
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