tpo_sustainability_brochure
2Pages

Firestone UltraPlyTM TPO: An ecological membrane Firestone UltraPly TPO is a light-colored roofing membrane that reflects the sunlight before it can be absorbed by the membrane and converted into heat energy. This characteristic of light-colored membranes, together with the advantages described hereafter, means that, especially for sunny climates, the Firestone UltraPly TPO membrane can be considered as an ecological membrane. Primary materials The Firestone UltraPly TPO membrane is made from the incorporation of an ethylene propylene rubber into a polypropylene matrix. A polyester weft inserted reinforcement, manufactured in the Firestone Fibres & Textiles division, is incorporated in-between cap and core layer. This reinforcement gives the membrane a good resistance to puncture and tear and improves the durability of the membrane. Equal mechanical performance can thus be obtained by a membrane with a lesser thickness. Use of less primary materials contributes to the care for the environment. The Firestone UltraPly TPO membrane does not contain any plasticizers. A liquid plasticizer will migrate or evaporate out of the membrane when in contact with certain chemical substances, oil, heat and/or simply through ageing. Loss of plasticizers will result in loss of flexibility and cracking of the membrane. As the TPO membrane contains no plasticizers, it is less susceptible to weathering and has a better sustainability. The Firestone UltraPly TPO membrane is a non-halogenated product, contrary to some roofing membranes containing up to 10% halogenated flame retardants. Firestone uses MagnesiumHydroxide in order to improve the fire performance of its TPO membrane and meet today’s fire safety regulations. No toxic or corrosive combustion gases are produced in case of a fire. Furthermore, investigations have shown that halogenated flame retardants can have an adverse effect on the long-term UV stability of the membrane and shorten the life expectancy of the membrane.

The manufacturing process of the Firestone UltraPly TPO membrane has a limited impact on the environment. The production of a TPO membrane requires less energy compared to other roofing membranes. The polymers and additives are not considered dangerous goods for man and environment. Dust particles emitted during the production process do not contaminate the working environment. Finally, products resulting from chemical reactions at high temperature (extrusion process) are negligible. Hot-air welding Thanks to the chemical composition of the Firestone UltraPly TPO membrane (quality and...