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Some Of The Many Advantages Of Polyurethane Foam Are:
• Heat transfer resistance (“R” value) is a common standard of insulation performance.
• Polyurethane foam is far more effective than any other commercially available insulation material in resisting heat transfer or loss.
• Polyurethane Spray foam forms a seamless insulating barrier, which prevents incursion of outside air, a major source of heat loss.
• Properly protected Polyurethane Spray foam is virtually immune from water penetration, which seriously degrades effectiveness of insulation.
• Polyurethane Spray foam does not sag, buckle, pack down, or mat – these are common conditions that reduce insulation effectiveness.
• Polyurethane Foam Insulation does not need glues or fasteners as it keys into cross bearers and surfaces.
• Extremely effective in noise reduction.
• Eliminates condensation.

When Polyurethane Spray foam is applied to the upper side of a roof, Polyurethane Spray foam needs to be covered with an elastomeric, bituminous, or acrylic membrane which is necessary to protect it from the weather.

Advanced Foam & Coatings Pty /Ltd (Aust) uses "Chemind HI-TEC-POLYMERS"