(with timber battens)
Breathable waterproofing underlay
Silvertek 25 Seal Lap
Polystick Tu Plus
Tiles (on timber battens)
Instant adhesion between adjacent membranes, even at low temperatures.
No use of adhesives or mastics.
Reduced application times.
Lower installation costs.
Membranes are installed quickly, cleanly and easily.
Impressive sealing at laps.
The structure is immediately waterproofed.
Most membrane application situations will require the use of a special primer to eliminate dust and seal open pores in the substrates.
Idroprimer, a water-based bituminous primer, is particularly suitable for wooden roofs as it is non-flammable and is not hazardous for the user. Being odourless, it is perfectly suitable in urban settings and populated areas.
Protective paints for exposed smooth membranes
When dealing with roofs covered with exposed membranes (i.e.without shingles), it is advisable to protect the membranes to give them a longer lifespan and improve the roof's solar reflectance (SRI) ratings. If the membrane has a mineral-surfaced finish, protecting it with a product such as Polysint Sun Reflect or POLYVER SUPER WHITE improves the thermal efficiency of the insulation package, resulting in a high reflectance rating (SRI 105 for POLYSINT and SRI 106 for POLYVER). If the membrane instead has a smooth finish, applying paint is essential to ensure the membrane is protected from UV rays and the system will have a long service life.
Like any type of roof, a wooden roof needs an insulation package.
The comprehensive POLYGLASS range includes all the main types of insulation, such as Rock Wool, Expanded Polystyrene, Extruded Polystyrene and Polyurethane with excellent heat-insulating properties.
These different materials can be factory laminated with a membrane (smooth, mineral-surfaced, reinforced with polyester or fibre glass mat carrier) to allow for easier fitting. These products are part of the POLYSOL line.
Accessories for waterproofing and for details on the roof
Many roof applications require accessories to have a correct system.
Butylstrip is a self-adhesive butyl tape faced with aluminium foil reinforced with a polyethylene film. An excellent complement to the Silvertek Seal Lap family for airtight sealing of connections around roof windows, skylights, chimneys and gables. It also seals and joins other materials, such as glass, steel, Plexiglas, wood, polycarbonate and aluminium.
Polyglue PU 2K is a 2-part polyurethane adhesive for gluing insulating panels and synthetic waterproofing membranes like Mapeplan T Af. It stands out for its fast application (setting) and excellent sealing.
Polyseal is a solvent-based elastomeric-bituminous sealant for gluing Polytegola N details and for sealing technical parts in the waterproofing polymer bitumen systems.
Polydetail MS is a one-pack MS Polymer sealant designed for sealing, repairing and installing technical features such as skylights, guttering, flues, chimneys, drains, etc.. It can also be used for sealing the top of bitumen membrane vertical turn-ups between the metal profile (membrane retainer) and concrete wall.