New – Marlon ST Longlife 10mm Fourwall, 16mm Fivewall, 32mm Sevenwall and 35mm Sevenwall. In colder climates the insulation benefits of Marlon ST Longlife are an important feature. The 35mm Sevenwall structure, with a U value of 1.2W/m²K, is one of the most energy efficient glazing materials available, with better insulation properties than most triple glazing or argon filled double glazing, so is ideal for use as part of a heated structure.

Marlon ST Longlife is a high performance polycarbonate rooflight sheet which has been designed for industrial, commercial, leisure and domestic applications where insulating glazing is required.

As the name implies, Marlon ST Longlife has impressive durability characteristics with a high degree of resistance to the harmful effects of extended usage under natural sunlight or artificial UV light conditions.

Polycarbonate sheeting has earned an excellent reputation for design flexibility, toughness, resilience, stable performance in temperature extremes, excellent fire ratings and for economy. Marlon ST Longlife has distinct advantages over traditional glazing materials in that it can be easily cut and trimmed on site, formed round gentle curves and its toughness to weight ratio prevents it suffering in transit.

Brett Martin's confidence in the toughness and UV light resistance of Marlon ST Longlife for applications such as these is evident in our offering a 10 year limited warranty against yellowing and weather breakage. Please refer to the Marlon ST Longlife warranty page for full details.
	Durability Marlon ST Longlife has impressive durability characteristics with a high degree of resistance to the harmful effects of extended usage under natural sunlight or artificial UV light conditions.
	Thermal Expansion Calculator In practical terms it is necessary to allow 3.5mm/metre length and width for thermal expansion. This Calculator gives the amount of thermal expansion allowance which must be made for given lengths and widths of sheet.
	Applications Marlon ST Longlife is ideal for use in Conservatory roofs, Atriums, Covered Walkways and Vertical Glazing.