The ISO-BLOCO ONE sealant tape has been specified by Northern Ireland-based window supplier Athena Windows for the Batimet aluminium clad wood windows its fitting at an apartment complex near Clapham Junction.
There the tape, which is quick and easy-to-use, is being used to effectively seal window gaps to a 0.8W/M2k rating with added 63dB of sound reduction - the apartments face onto a busy main road - as an integral part of the windows’ eye-catching design.
As well as providing a high performance and long lasting airtight solution, the tape ensures the windows, which each weigh up to 250 kg and have been hoisted into position by a crane mounted vacuum lifter, will remain weather proof to 1000 Pa – the equivalent to 130mph of constant driving rain.
Colm O’Neill, managing director of Athena Windows, said: We were looking for a sealing method to compliment the quality of the windows and found the ISO-BLOCO ONE an ideal one-fit solution.
The impregnated expansion sealing capability of the tape provides good protection against wind, rain and sound penetration, while also complementing the window system.
Up to 70% cost savings can be achieved using the ISO-BLOCO ONE foam tape because it enables installers to seal windows from inside the building, avoiding the need to use time consuming and costly external access systems like scaffolding and ladders.
The tape offers a single product 'fit and forget' solution for fast and effective sealing based around the European RAL principles of three level sealing - the inside seal area is more airtight than the external one, allowing any trapped moisture inside the joint, or within the wall, to escape outwards rather than into the building.
The external seal area provides weather resistance and breathability, while the intermediate seal area provides extra thermal and acoustic properties and the internal one air tightness and humidity regulation. All three levels are designed to accommodate movement between the adjacent materials.
The internal air tight seal has been tested at 1000 Pa pressure difference (20 times more than UK Building Regulations) and tested to achieve 0.00 m³ of air loss. At the same time, depending on tape width, it will also supply a U-Value as low as 0.55W/m2K and reduce sound by up to 63 dB, straight from the box. Product complies with energy saving regulations (EnEV) on windows and doors as well as the RAL quality assurance association and can accommodate extremes of temperature changes – from -30°C to + 80°C.