Characteristics
MT VIADUCTS is a prefabricated membrane made of bitumen distillate modified with elastomeric and plastomeric polymers, and reinforced with spunbond non-woven polyester filaments which, given its heavy weight, provides excellent resistance to mechanical stress.

The waterproofing compound, obtained through the complete homogenization of bitumen distillate with elastomeric and plastomeric polymers, is added with special additives and offers top features:

• resistance to temperature change
• resistance to chemical corrosion (acids and salts)
• waterproof seal
• good adhesion when heated to all supports.

Reinforcement

Composed of non-woven spunbond polyester filaments offers:

• high mechanical characteristics
• imputrescibility, elasticity and flexibility
• good isotropy
• resistance to attack by chemical and bacterial agents.

Methods of application

• The membrane is usually applied by heating the bituminous blend using a gas burner or hot air guns in special cases.
• Always use the individual protection devices specified by law.
• Never use these systems on heat-sensitive supports or insulation.
• Scrupulously respect the recommendations and warnings for use provided on the product’s technical data sheet.
• The waterproofing system and the products recommended can be modified as required by the roof’s constructive type and size (please consult our Technical Assistance Service).
• Conduct regular maintenance on the roof in order to remove detritus, mud, grass, etc., and to keep the operation of the waterproofing system and accessories (drains, TV antennas, air-conditioning systems, etc.) under control.
• Whenever there is reason to believe that the element to be waterproofed has traces of residual humidity (e.g. during renovations of existing roof coverings, applications after abundant rainfall), vents should be positioned in such way as to permit its elimination.

Finishing

The upperside of MT VIADUCTS is finished with a special inorganic and extremely fine release material which is uniformly spread and calibrated in order to prevent the roll from sticking to itself providing anti-slip features for applications on sloping surfaces. The underside is protected by a burn-off printed and embossed polyethylene film that allows you to check anytime the ideal melting point of the waterproofing compound and vapor diffusion thus preventing the formation of blisters whenever the membrane is laid with semi-adherence or independently.