Bifold Door Shop GlossaryBottom RebateLaminated ProfilesLaminating timber profiles involves splicing the wood into three and then gluing them back together, under high pressure with the wood grains against each other which prevents the frames from twisting, bowing or warping out of shape.Low-E CoatingLow-E stands for low-emittance. We use specially designed Low-E coating on our insulated glass to reflect radiant infra-red energy, keeping heat inside in the winter and heat outside in the summer. **reword & link to glasses page**RAL coloursRAL is a colour matching system derived from Germany, mainly used for varnishes and powder coatings. For our full range of RAL Colours see our Folding Sliding Door Finishes.Thermally BrokenU-ValuesThe U-value describes how well an element conducts heat. **It measures the rate of heat transfer through a building element over a given area, under standardized conditions.** A smaller U-value is better, as the object would have a low rate of heat transfer and thus provide better insulation. **reword** |
