Thermal Insulation Waterproofing system is a comprehensive solution for both flat and sloping single-ply roof structures with the standard arrangement of vapour control layers and thermal insulation. White Reflex used for thermal insulation waterproofing on roof, is of high reflectance and emissivity water-based white paints, for bituminous waterproofing membranes, concrete, sheet metal, plain and half-round tiles, which improve the thermal insulation of buildings.
Thermal insulation is to protect building interiors against thermal losses at night and overheating in the days. Thermal and technical properties of structures and buildings have a major impact on our body thermal comfort.
Protecting bituminous coverings from ultra-violet rays and improving the thermal insulation of buildings. Over 90% of roofs are dark-coloured, and the surface of a roof exposed to solar radiation sometimes reaches temperatures of more than 80°C, which also has negative effects on the useful life of waterproof coverings.
WHITE REFLEX and WHITE REFLEX ULTRA are one-part white paints, based on polymers in special additives and aqueous emulsion. The dry skin forms a flexible film, with high solar reflectivity and resistant to atmospheric agents.
Surfaces must be clean, dry and free from impurities or residues of old paint. They must be washed with water to remove the reddish water-soluble powder and any residue of talc coating which is not adhesive
Apply the first coat (about 10%) after diluting with water; the second coat must be applied after 6 hours when the surface is completely dry. The dilution will always depend on the type of substrate and the environmental conditions.
We always recommend applying two coats, preferably criss-crossing them. The product can be applied with a paintbrush, a roller, a large brush or it can sprayed. Surfaces must have a minimum slope of 3%, sufficient for rainwater to run off.
WHITE REFLEX and WHITE REFLEX ULTRA are not suitable for flat surfaces where water stands for prolonged periods. In addition, water standing for prolonged periods not only reduces the adhesion of the paint but also leads to accumulations of dirt and affects the reflectivity of solar panels.
To keep high reflectivity and efficiency, we recommend periodic removal of the dirt by washing with water. For application on sheet metal roofs, apply in advance a gripping base coat of JOINT DECK.
When applying on concrete, any holes, cracks or cavities should be filled with RESISTO UNIFIX mortar. Spread a first coat as an insulating fixative, diluting the product with 30% water. If the surfaces appear to be porous and chalking, apply the acrylic primer PRIMER FIX or BETON PRIMER S. Application to plain or half-round tiles should be similar as for concrete.
Coverage depends on the nature and porosity of the substrate. The consumption per coat, on aged smooth membranes is about 200÷300 g/m2, whereas on slated membranes, it is about 350÷450 g/m2