Quote your Double-glazed windows online. This is a Free and Fast way to save in construction for professional Builders and Renovators! - discount plastic UPVC windows and doors (u-pvc windows, pvc-u windows, pvcu windows), Timber-aluminium windows and doors (wooden aluminium frame), Aluminium windows and doors, Timber windows and doors, Internal doors, External doors, Residential doors, Commercial doors, UPVC fences, UPVC panels, European Kitchens, Flooring, Insulation, ICF's-Insulated concrete forms, Energy-saving construction, Drafting & Architect service and many others products and services for builders and renovators!
Double-glazing: Glass Insulating Index - U-Value Winter
Insulating Index – U-Value Winter -
- The U-Value is a measure of the air to air heat transfer that occurs due to thermal conductance and the difference between indoor and outdoor temperatures. The lower the U-Value the better the insulation.
