ESHADIEN ULTRAWHITE SBS -20 | Cool roof

Surface preparation

- Thoroughly clean the surface to which the waterproofing is to be applied, removing loose particles, dust and greasy substances.

- Level the surface using VANDEX UNIMORTAR 1 repair materials (if necessary).

- Slope of the surface for waterproofing: at least 1.5 per cent.

- Recommended relative substrate moisture content ≤ 6 per cent.

- Prime the surface with ESHAROOFCOAT No10 elastomeric bituminous primer at a consumption rate of 0.4–0.5 kg/m². Alternatively, ESHALAC 50S bituminous primer (ASTM D-41) may be used at a consumption rate of 0.3 kg/m² or hot bituminous adhesive (SBS-modified) ELASTOMERIC BITUMEN 07 or PLASTOX1 (ASTM D-312 TYPE III) at a consumption rate of 2–4 kg/m².

- Once the bituminous primer has dried, the surface is ready for the application of the waterproofing membranes.

Application of the bituminous membrane

- The main body (excluding overlaps) of the ESHADIEN ULTRA WHITE bituminous membrane is carried out using a TORCH KIT propane torch with a nozzle ≥ 50 mm, in accordance with ESHA’s technical instructions.

- Particular emphasis is placed on the overlaps (seams) of the bituminous membranes; for bonding these, either a hand-held hot-air gun or a self-propelled hot-air machine with adjustable speed and bonding temperature.

- Furthermore, for the correct bonding of the seams, the use of an 8 kg ROLLER PRESSURE SEAM roller is recommended (Avoid using other tools such as trowels or rounded blades, which may compromise the waterproofing and mechanical properties of the bituminous membrane).

- Finally, for unrolling and bonding the ESHADIEN ULTRA WHITE bituminous membrane to the substrate, we recommend using the special ROLL PULLER rod to unroll from the front side, in order to avoid the phenomenon of ‘footprinting’, as well as the high localised pressure exerted by the installer when ‘stepping’ on the membrane (resulting in localised deterioration of the bituminous membrane’s mechanical properties).

Application notes

- The application temperature must not be lower than 5 °C.

- Waterproofing must be carried out by installers who are experienced and certified in the application of bituminous membranes