Verified by manufacturer 1 month ago
NSAI Agrément Certificate
Certificate type
Polymer modified mastic asphalt roof waterproofing.
Suitable for insulated warm roofs, un-insulated cold roofs and inverted/ green roof configurations, balconies, terraces, podiums, zero fall roofs, biodiverse/brown roofs, roof gardens and blue roof specifications.
A specially formulated mastic asphalt roofing using advanced polymer technology to provide a combination of long-term durability, increased fatigue resistance, improved temperature stability and ease of installation.
It can be applied to form a continuous waterproof covering over flat, sloped or curved surfaces. It can be worked round pipes, roof lights and other projections to provide a completely seam free membrane.
Features and benefits:
Color | Black |
Material | Asphalt Polymer |
Length | Bespoke |
Width | Bespoke |
Height | 20 mm 30 mm |
Warranty description | 25 year |
Uniclass | |
CAWS | J21/402 Mastic asphalt (roofing) J21/26 Mastic asphalt |
Standard | To BS EN 12970. |
Grade | Block (20 kg). |
Grade of asphaltic cement | Polymer modified. |
Colour | Black. |
Thickness: | 20 mm. 30 mm. |
Mass | 2.2 kg/m²/mm of thickness. |
Expansion | Coefficient of cubic expansion: 15 x 10^-5/°C. |
Vapour resistivity | Not less than 100,000 MN/g. |
Water resistance | IKO Permaphalt is impervious to water. |
Resistance to fire | To EN 13501-5, Broof(t4). |
Movement | IKO Permaphalt is thermoplastic and is capable of accommodating normal movements encountered in well-designed building structures. Guidance for specification option: Structural movement joints within the roof will require the incorporation of a proprietary expansion joint which is compatible with a mastic asphalt roof waterproofing system. |
Surface protection | With the exception of vertical and steeply sloping work, the finished IKO Permaphalt must be sand rubbed to reduce the incidence of crazing. A protective surface should be applied to all flat areas using a suitable solar reflective paint, stone chippings or promenade surfacing. Guidance for specification option: A protective surface should be applied to all flat areas using a suitable solar reflective paint, stone chippings or promenade surfacing. |
Durability | Capable of lasting 50-60 years. |
Outlets | IKO Elite Outlets. |
Third-party certification | British board of agrement: 89/2299. |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Asphalt Polymer |