Axter TRIPLE PROTECTION system
Axter TRIPLE PROTECTION system |
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Concrete deck
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| Other views | |
 Detailed view |
 System brochure |
Listed below is a general specification using a fully bonded aluminium foil finished membrane and then mastic asphalt as a top layer (Axter can provide, on request, written detailed specifications to suit any building).
| Usage | Products |
| Deck | Concrete, laid to achieve a smooth deck finish at 0° pitch. |
| Primer | Prime deck with Axter's VERNIS ANTAC (see brochure) quick drying primer and allow to dry. |
| Base layer | Fully bond to the concrete deck Axter's BARYPRENE B3a PLUS modified bitumen membrane with overlapping side and end laps. |
| Mastic asphalt | Lay Pommar mastic asphalt, to specified thickness (normally 10 or 15mm), laid in one pass in accordance with current practice. |
| Details | Turn the BARYPRENE B3a PLUS up the upstand by at least 150mm. Install Axter's ARMALU aluminium finished membrane or ARMA CPV colour to choice by bonding it to the top of the asphalt for a min of 150 mm and up the height of the upstand. |
| Thermal insulation | Loose lay STYRODUR XPS CFC-free extruded polystyrene, to a thickness to achieve required 'U'-value. Axter can advise upon request. Insulation should be set back from roof edges by at least 50mm and the gap filled with washed rounded gravel or covered with an AXTER EDGE GRATING. |
| Filter layer | Loose lay Axter's FILTER LAYER on top of the insulation ensuring that it is wrapped up at the sides so that it forms a separating layer between the upstand and the protection. |
| Protection | This can be concrete or wooden paving slabs on AXTER PAVING SLAB supports, washed rounded gravel, block paviers laid on a sand bed, etc.. |
In general specifications should follow the guidelines given in:
British Standard Code of Practice BS 6229:2003, Flat roofs with continuously supported coverings.
British Standard Code of Practice BS 8217:2004, Flexible bitumen sheet roofing.
Specifications are given for roof slopes< 5°. Apply to Axter for further information.
Axter advises that an AXTERSHIELD INSTALLER, who has specialist knowledge of Axter's systems, installs the specification given above and from whom extended guarantees can be obtained.
Specifications listed are for guidance only and Axter cannot be held responsible for any errors or omissions. It is the specifier's responsibility to ensure that the specifications are suitable for the requirements of his construction.
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