Protec

Approved for use on

Balconies, Terraces & Walkways Flat Roofs Green Roofs Inverted Roofs Pitched Roofs Zero Falls Buried Roofs 

For use as a liquid-applied roof waterproofing system on new or existing roofs with limited or pedestrian access in the following specifications:
• exposed warm and cold flat and pitched roofs(1)
• protected warm and cold flat and zero fall roofs (ie covered by pavers or other suitable protection) (1)(2)
• green (extensive) flat, zero fall and pitched roofs(1)(2)
• inverted flat and zero fall roofs(1)(2)
• terraces with anti-slip layer (2)
• walkways across roof areas with anti-slip layer (2)

(1) Limited access
(2) Pedestrian access

Substrate

Concrete Glass Reinforced Polyester Mastic Asphalt Metal Plastic Reinforced Bituminous Membranes Single Ply Membranes - EPDM Single Ply Membranes - PVC Single Ply Membranes - TPO Timber 

The system is suitable for use on the following substrates:
• concrete
• asphalt
• plywood(1)
• OSB 3(2)
• reinforced bitumen membranes (including sanded and mineral surfaced felts)
• insulation (1)
• GRP
• single-ply membranes(2)
• previously-coated surfaces(2)
• small areas of metal incidental to the roof, eg pipe upstands
• small areas of plastic-coated metal incidental to the roof(1)

(1) Grades approved by the Certificate holder
(2) The advice of the Certificate holder should be consulted on compatibility with the system

Durability

25 Years 

The system will achieve an initial life expectancy, for an exposed roof, of at least 25 years. When fully protected and subjected to normal service conditions in an inverted roof specification with an open covering (eg aggregate pavers), the system can provide an effective barrier to the transmission of liquid water and water vapour for the design life of the roof in which it is incorporated.

In situations where maintenance or repair of any of the components in the roof structure are necessary (eg protection layer or insulation), the durability of the membrane may be reduced. In these circumstances the Certificate holder should be consulted.

An estimation cannot be given for the life of green roof specifications owing to the nature of use; however, under normal circumstances, it should be significantly greater than for exposed waterproof coverings.

Installation Requirements

The system is only installed by specialist roofing contractors who have been trained and approved by the Certificate holder.

Puncture Resistance

P4 - roof gardens, inverted roofs and green roofs)

Most Compressible Substrate (eg insulation)

Fire Safety

When tested to DD CEN/TS 1187 : 2012, Test 4, the following flat roof systems achieved a classification under BS EN 13501-5 : 2016 of BROOF(t4) for roof pitches between 0° and 10° and so are unrestricted with respect to proximity from a boundary by the documents supporting the national Building Regulations:

• a primed 18 mm orientated strand board, a 0.6 mm thick self-adhesive vapour control layer, a 120 mm thick, foil-faced polyisocyanurate insulation board bonded with a polyurethane adhesive, one coat of Protec resin at 1.25 ℓ∙m–2, a layer of Polymat reinforcement and one coat of Protec resin at 0.50 ℓ∙m–2 (1)
• an 18 mm thick oriented strand board, 0.6 mm thick self-adhesive vapour control layer, 210 mm thick rockwool insulation board, one coat of Polyroof Uni-Primer DP at 0.25 ℓ∙m–2, one coat of Protec resin at 1.5 ℓ∙m–2, a layer of Polymat glass reinforcement and one coat of Protec resin at 0.5 ℓ∙m–2 (2)
• a primed 18 mm orientated strand board, a self-adhesive vapour control layer, a 150 mm thick tissue-faced polyisocyanurate insulation board bonded with a polyurethane adhesive, a 2.0 mm thick self-adhesive carrier membrane, one coat of Protec resin at 1. 5 ℓ∙m–2, a layer of Polymat reinforcement and one coat of Protec resin at 0.5 ℓ∙m–2 (3)
• a primed 18 mm orientated strand board, a 0.6 mm thick self-adhesive vapour control layer, a 123 mm thick, polyisocyanurate insulation board, including a 3 mm bituminous facing board, bonded with a polyurethane adhesive, one coat of Uni-Primer DP at 0.25 ℓ∙m–2, one coat of Protec resin at 1.5 ℓ∙m–2, a layer of Polymat reinforcement, one coat of Protec resin at 0.50 ℓ∙m–2, one coat of Protec resin at 0.50 ℓ∙m–2 with 0.7 – 1.2 mm quartz sand broadcast at 2.5 kg·m–2 and one layer of light grey PolyFinish at 0.60 ℓ∙m–2 (4).

(1)          Fire test and classification reports, references P110210-1001 and P110210-1002 respectively, conducted by BRE Global, Report available from the Certificate holder.

(2)          Fire test and classification reports, references Q101049-1000 and Q101049-1001 respectively, conducted by BRE Global, Report available from the Certificate holder.

(3)          Fire test and classification reports, references Q100928-1005 and Q100928-1006 respectively, conducted by BRE Global, Report available from the Certificate holder.

(4)          Fire test and classification reports, references Q101049-1002 and Q101049-1003 respectively, conducted by BRE Global, Report available from the Certificate holder.

When tested to BS 476-3 : 2004 at 0° pitch, a roof system comprising a 6 mm calcium silicate board, one coat of Polyroof Uni-Primer at 0.25 ℓ∙m–2, one coat of Protec resin at 1.25 ℓ∙m–2, a layer of Polymat reinforcement and one coat of Protec resin at 0.50 ℓ∙m–2 (1) achieved an EXT.F AB rating and is also unrestricted with respect to proximity from a boundary by the documents supporting the national Building Regulations.

(1) Fire test report, reference 312872, conducted by Exova Warringtonfire, Report available from the Certificate holder.

A roof incorporating the system will also be unrestricted with respect to proximity from a boundary under the national Building Regulations in the following circumstances:

• when used in protected or inverted roof specifications including an inorganic covering listed in the Annex of Commission Decision 2000/553/EC,
• irrigated green roofs.

The classification and permissible areas of use of other specifications should be confirmed by reference to the requirements of the documents supporting the national Building Regulations.

In England and Wales, the system, when used in pitches of greater that 70°, excluding upstands, should not be used on buildings that have a storey at least 18 m above ground level and 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.

In Scotland, the system, when used in pitches greater than 70°, excluding upstands, should not be used on domestic buildings that have a storey more than 11 m above ground level.

If allowed to dry, the plants used may allow flame-spread across the roof. This must be taken into account when selecting suitable plants, and appropriate planting, irrigation and/or protection should be applied to ensure that the overall fire-rating of the roof is not compromised.