The product comprises suitably graded limestone aggregates bound together with an asphaltic cement (primarily refined bitumens) to produce a dense, voidless material. It cannot be compacted, and is spread by means of a hand float, rather than rolled. Today’s modern mastic asphalt contains highly advanced polymer formulations, pioneered by manufacturers like Permanite in the 1980s.High performance felts offer a wide range of systems to suit both new and refurbishment projects, and have improved greatly over the years with advances in new product development. They are suited to most roof designs from flat, pitched or barrel vaulted through to vertical surfaces.
HIGH PERFORMANCE POLYESTER BASED FELTS
High performance felts can be used for most waterproofing applications including flat, low pitched and barrelled roofs, terraces, planters and underneath green or brown roofs. High performance felt roofing systems can be installed as a warm, cold or inverted roof application using the traditional roll and pour method as well as heat activated, cold applied or self-adhesive systems.
Today’s high performance systems are capable of coping with the movement in modern buildings and are resistant to puncturing. Cap sheet finishes are available in various colours and can be designed for appearance, as well as being hard wearing and tear resistant.
All the systems we use have a manufacturer’s warranty and can be upgraded for insurance purposes from 10 years to 15, 20 or 25 years.