TLX Gold is a two-in-one insulating breather membrane that vents moisture while insulating like a non-breathable PIR board. The main benefit of the product is that it improves the thermal performance of a roof without causing condensation or requiring the height of the roof to be adjusted. Re-roofing is also made simple with TLX Gold. TLX Gold is Sd intelligent, which means it adapts to environmental changes. When humidity rises, the product's vapour permeability rises, and when humidity falls, the vapour permeability of TLX Gold falls, removing the possibility of condensation even without a vapour barrier. The TLX Gold product is light, quick, and simple to install, and it has received European technical certification as well as LABC's endorsement. Over 15,000 roofs have been installed using the product, and in many situations, existing insulation is not required. 33mm thick - seven-layer composite structure. Features Sd intelligent (the more moisture the more TLX Gold breathes) Upgrades existing insulation Replaces roof underlay Air barrier Allows water vapour to pass through Controls heat loss through management of convection, conduction and radiation Requires minimal space Easy and quick to install Light weight Clean and easy to use, no protective clothing required Purpose Top layer high performance breather membrane Core of PET wadding interleaved with reflective films Bottom layer of reflective film All layers are breathable, so moisture passes through Bottom layer reflects infra-red rays back into living space Weight = 10.8kg