Things to Consider when using Nuratech TPE

The substrate provides the foundation for a successful system. The two most common substrate problems are movement and ponding. To alleviate these ensure when plywood is being used that:

The treated plywood substrate is at least 17.5mm thick, 20mm on decks, supported at 400mm x 400mm.The plywood must be tightly butted and staggered or brick pattern laid. Stainless steel fixings and glue bonding of the plywood must be used.
Falls are as much as possible. In accordance with E2/ AS1 we recommend a minimum of 1:40 for roofs, 1:60 for decks and 1:100 in gutters. Pay attention to detailing around scuppers as they often are a source of ponding.

Nuratech membrane is compatible with Enertherm PIR foam to produce the Nuratherm system. If installing a cold roof instead, ventilation is very important to keep the ceiling space cooler, as well as removing condensation buildup. A vent every 20m2 is recommended but attention must be paid to placement relative to rafters to allow for cross flow. Soffit vents can also be useful addition to a flat roof design.

The membrane is suitable for collecting potable water but if drinking water is being collected a first flush diverted should be installed to reject possible stagnant or contaminated water.

In areas expected to experience high wind pressures the IKOFix mechanical fastening systems has been specifically designed for the Nuratech SM sheet range. It includes corrosion resistant screws and washer plates, flat bars for clamping frames, and is applicable to any substrate suitable for mechanical attachment. The combination of IKOFix mechanical fastening system with the exceptional mechanical properties of Nuratech SM roofing sheets results in a particularly high capacity to absorb forces and divert them to the substructure.