EJOT’s crack-preventing reveal beads help optimise EWI performance

EJOT’s range of innovative PVC profiles can play a key role in minimising the risk of cracks developing around window and door frames in rendered external wall insulation (EWI) systems, thus reducing one of the most commonly reported issues by property owners and tenants.

The fastening systems specialist has developed an extensive range of profiles and beads for EWI systems, also referred to as ETICS (external thermal insulation composite systems), which enable the creation of high quality facades with precise edges and optimum lifetime performance.

Within this range are several Pro GAP window reveal beads manufactured in a combination of PVC and fibreglass mesh which are designed to achieve an exact, aligned and perpendicular plaster finish around windows and doors. When used in an EWI system that also utilises EJOT Pro-Line profiles and beads for the base, corners and edges, plus its insulation anchors and mounting elements for post-installation attachments, the end result is a thermally superior façade which can be maximise the return on investment in housing refurbishment programmes.

In many projects, the original and proven EJOT Pro GAP is ideal, enabling a reliable connection to be achieved between the façade and the frame, which is clean, impervious to driving rain and minimises thermal bridging. EJOT’s latest additions to this range, however, go a step further by providing solutions in applications where there is a risk of more significant movement at the window or door frame and façade interface.

Here the EJOT Pro GAP Giga Flex and Pro GAP Giga Flex Slim provide installers with two reveal bead options which are designed to flex and accommodate slight movements that often occur at these connections due to expansion and contraction as a result of temperature fluctuations. This is achieved through an innovative design which allows for a degree of three-dimensional movement absorption and has been confirmed in testing.

Both Pro GAP Giga Flex and Pro GAP Giga Flex Slim are easy to apply and feature an adhesive strip with removable tab to apply the film to protect the glass and frame, and they can be used for insulation thicknesses up to 300 mm and window sizes up to 10 sq. m. Pro GAP Giga Flex Slim has been specially developed with a low thickness of 7mm, making it suitable for applications requiring a high absorption of simultaneous movement (3D) where space is limited, such as in some renovation projects.

The innovative design of the Pro GAP window reveal beads typifies the entire range of ETICS profiles and beads developed by EJOT. Incorporating these into a system design and specification enables specifiers to maximise the quality and performance in their housing upgrade projects, whilst giving systems providers and installers the products they need to achieve outstanding results with ease.

CLICK HERE to visit the EJOT website and find out more