roofing // flat roofing // waterproofing // drainage // rainwater pipes // soil and waste drainage // flat roof drainage // floor drainage // roof membranes // single ply roofing // built up roofing // thermal insulation // structural metal decking // rooflights // structural waterproofing // green roofs // facade systems // grp // gutters // building envelope // standing seams
is a general range of outlets that uses anti-vortex principles to optimise flow performance when connected to individual downpipes as part of a "one-to-one" system. The outlet uses a patented baffle within the grating to prevent water swirl and air entrapment, enabling the outlet to drain at 90% of its pipe capacity.
Harmer Flat Rooging AV units are available as vertical spigot or vertical
screw and in gunmetal for copper or lead clad roofs or for connection to copper
pipework. Gunmetal outlets are the same design as aluminium outlets, but are
cast in 85/5/5/5 leaded gunmetal to BS EN 1982: 1999 - CC491K. Foamed insulation
is available as an option for both aluminium and gun metal outlets.
Harmer Flat Rooging AV Retro-gulley outlets are designed to fit within the existing outlet and pipework of a roof that is being upgraded. It is a very cost-effective and efficient solution, since it is not necessary to remove the old rainwater outlet. The tail pipe is cut to the required length, inserted through the existing outlet and sealed to the existing pipework using a special multi-fin pipe seal. The Retro-gulley has been designed in conjunction with the Flat Rooging Contractors Advisory Board.
is a dual reinforced TPO (Thermoplastic Polyolefin) modified bitumen membrane for flat roofing. It is ideal where economy and performance are priorities on flat roofing projects. Torchtite is used as a cap sheet in built up systems, usually over a base layer of Hi - Ten.
Torchtite Supa 40 comprises a polymer modified bitumen with a dual reinforcement of polyester/glass fibre with torch fusible polyethylene lining to the underside of flat roofing.
Torchtite is suitable for application to metal, woodwool, concrete flat
roofing and timber decks. It may form the waterproofing layer in warm, cold
or inverted roof constructions.
is made from natural cork granules which are steamed and pressure bonded into boards using the cork's own natural resins. Korklite has exceptional dimensional stability under wide temperature fluctuations for flat roofing.
Korklite insulation offers a number of key advantages for use with flat roofing systems:
Alumasc is a world leader in building and construction products, bringing together the experience and skills of a specialist range of manufacturers' to offer some of the best known and most highly regarded brands on the market. Alumasc's building products, some of which are world leaders in their field, are used throughout the UK and other parts of the world.
Alumasc have a comprehensive portfolio of roofing and waterproofing products. This encompasses the full range of products that are necessary to provide a complete flat roofing system, from high performance roofing membranes to monolithic structural waterproofing and green roofing systems.
roofing // drainage // waterproofing