Polyshield 15 Roof Waterproofing System

Approved for use on

Flat Roofs Pitched Roofs Zero Falls Buried Roofs 

For use as a liquid-applied waterproofing layer on limited access flat and pitched roofs, and protected zero fall cold roofs.

Substrate

Concrete Mastic Asphalt Reinforced Bituminous Membranes Single Ply Membranes - PVC Steel Timber 

The system is suitable for use on substrates of:

• concrete
• mastic asphalt
• bituminous roofing felt
• steel
• timber
• PVC plastisol coated metal
• PVC single-ply waterproofing membrane.

Durability

15 Years 

Under normal conditions, the Polyshield 15 Roof Waterproofing system will achieve a life expectancy of at least 15 years.

Installation Requirements

Installation of the system must be carried out in accordance with the relevant clauses of BS 8000-0 : 2014, BS 8000-4 : 1989, Liquid Roofing and Waterproofing Association (LRWA) Note 7 – Specifier Guidance for Flat Roof Falls, the Certificate holder’s instructions and this Certificate, and only by specialist roofing contractors trained and approved by the Certificate holder in accordance with their installation instructions.

Fire Safety

A system comprising an 18 mm plywood substrate, a 1.6 mm layer of bitumen felt, one layer of Polyshield 15 Basecoat applied at a rate of 1 ℓ·m–2 with Polyshield Scrim embedded in the coat, and one layer of Polyshield Topcoat applied at a rate of 0.5 ℓ·m–2, achieved an EXT.F.AC classification(1) to
BS 476-3 : 2004 and so is unrestricted under the national Building Regulations.
(1) Fire test report, reference 317117 conducted by Bodycote Warringtonfire. Report available from the Certificate holder.

The system, when used in protected specifications, including an inorganic covering listed in the Annex of Commission Decision 2000/553/EC, can also be considered to be unrestricted under the national Building Regulations.

The designation of other specifications should be confirmed by reference to the requirements of the documents supporting the national Building Regulations.

The system, when used in pitches of greater than 70°, excluding upstands, should not be used on buildings in England and Wales that have a storey at least 18 m above ground level and which contain: one or more dwellings, an institution, a room for residential purposes (excluding any room in a hostel, hotel or boarding house), student accommodation, care homes, sheltered housing, hospitals or
dormitories in boarding schools.

The system, when used in pitches of greater than 70°, excluding upstands, should not be used on buildings in Scotland that have a storey at least 11 m above ground level.