Excel® Waterproofing System

BS 8747:2007 states in Durability Clause 4.9.6 “Most polymer-modified and polyester-reinforced bitumen membranes are expected to have a service life in excess of 50 years.” Properly designed and installed, Excel Alpa polymer modified systems will continue to protect buildings for more than 60 years providing lifetime cost benefits. When products become worn, an overlay will often extend the life of the roof without the need for a costly strip and renew programme.

Excel’s exceptional longevity and performance characteristics can be used on all construction types. All Excel build ups comply with British and European standards and have been approved by the British Board of Agrément under certificate number 94/3037. Excel is classified unrestricted by the requirements of the National Building Regulations and deemed Broof(t4) in accordance with BS EN 13501-5:2005 fire classification of construction products and building elements.

Installation of Excel waterproofing systems is carried out by accredited installers. Excel can be installed on all support structures fully or partially bonded in a flame free, hot air welded, mechanically fixed, or torch applied application on flat, zero fall and pitched roof specifications. All system components are specified and installed to be fully compatible with consistent detailing, in full compliance with the NFRC Safe2Torch guidance.

Excel achieves a 30 year insured system guarantee covering materials, design and workmanship, and has durability in excess of 50 years. Additional independent insurance backed insolvency protection for Axter's materials, and the workmanship of the accredited roofing contractor, is also available for 10 years in respect to Platinum Guarantees.

Excel is British Board of Agrément (BBA) certified, is accepted by all third party building warranty providers such as LABC and NHBC, and complies in full with The Building Regulations and all relevant British and harmonised European standards.