Roofstar mastic asphalt roofing

In addition to Permaphalt polymer modified mastic asphalt, IKO offers additional British Standard grades of asphalt roofing.

Roofstar Plus

Roofstar Plus offers enhanced flexibility and laying qualities. In addition, it has a polymer modified formulation offering a number of additional benefits such as low temperature stability. Roofstar Plus complies with BS EN 12970:2000-Mastic asphalt for waterproofing.

Roofstar

Roofstar is an economical asphalt roof waterproofing option, and includes Trinidad Lake Asphalt. It complies with BS EN 12970:2000-Mastic asphalt for waterproofing.

Typical Applications

Roofing grade mastic asphalt is typically laid in two 10mm coats to a total thickness of 20mm over black sheathing felt.

If the asphalt is be left exposed and used as a walkway, (for example to a small number of flats), then the above grades can be modified on site by adding 10% – 15% of 2mm – 3mm coarse aggregate. The first coat of normal roofing asphalt is laid 10mm thick over the BSF followed by the gritted up roofing that is now laid to a thickness of 15mm. Alternatively, on bigger jobs the 15mm thick top layer of roofing can be supplied pre-gritted. This is called 106 RD Recreational Duty Roofing.

If point loading is anticipated (e.g. on a balcony), the surface should be tiled over two 10mm coats of mastic asphalt roofing to a total thickness of 20mm over black sheathing felt.