7th August 2012, Harrogate, North Yorkshire – (Kazor.com) -
The domed roof, gutter, parapet and decorative copings on the Bandstand showed signs of spalling and deterioration. It was discovered that the cause of the problem was the lack of an effective roof coating on the dome rendering it porous. This was compounded by vegetation growth in and around the gutters resulting in blockages to the gutter drains. If the bandstand had been left untreated it would have ultimately become structurally unsafe.
After initial preparatory works, installation of the scaffolding and edge protection, the domed roof was cleaned and the vegetation removed. During the removal of the vegetation roots, some of which were a considerable size, it became apparent that they had undermined sections of the concrete gutter: deeming the extent of the concrete damage very serious.
Belzona Technosol Limited excavated the affected areas of concrete and replaced them with Belzona 4131 (Magma Screed), a concrete rebuilding and re-surfacing system. A waterproof coating was then applied to the domed roof, gutter detail and parapet walls to prevent further ingress and reduce the likelihood of future spalling. Belzona 3111 (Flexible Membrane) in a sand colour, matching the original colour of the band stand, was the product selected as it provides a high performance, long life waterproofing and weatherproofing system.
The application was completed within 2 weeks and the Belzona system is expected to provide complete and long life weather and waterproofing protection to the domed roof structure in the future.
Belzona Polymerics Limited (PO Box Allowed)