PermaQuik Brown Biodiverse Green Roof System - Quantum (Pure)

PermaQuik Brown Biodiverse Green Roof System - Quantum (Pure)

Radmat Building Products Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Hot melt bitumen waterproofing brown roof system.

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A one-part hot applied rubberized bitumen membrane for use on inverted flat roofs, with limited pedestrian access.

Permaquik PQ 6100 is designed to accept minor structural movements and distributed loads without damage when used as described in Agrément Certificate 97/3336, although concentrated point loads may cause damage. On flat roofs, when used in an inverted roof specification including a minimum surface finish of 50 mm of aggregate, Permaquik PQ 6100 will achieve designation AA.

The membrane joins ‘new to old’ to form a monolithic bond when lapped with new hot material. It will self heal minor damage, in clean and dry conditions with light superimposed loads.

The membrane is to be applied by a Radmat Building Products Ltd approved contractor.


Concrete: Use traditional methods of concrete curing (i.e. water curing/wet coverings/paper/plastic sheets). Obtain approval from Radmat where concrete curing compounds (other than sodium silicate based) or release agents are proposed.

Precast concrete and concrete block: Decks to BS 6229 and BS 8217.

Metal/ plywood/ timber boarding: Surfaces to be free of oil, rust, paint or coatings which may inhibit the bond. Plywood must be WBP with durable ply species.

Substrate preparation:

Remove laitance, curing compound and form release agent from surface of concrete slabs by mechanical scarification, grinding, blast cleaning or chemical cleaning. Remove and smooth away any fins and nibs. Make good tie holes and damaged area with latex modified patching mortars, ensuring edges are slightly undercut. Existing surfaces must not be power washed prior to carrying out any works.

Ensure all detailing and flashings are completed before installing the membrane.


Primer PQ 6109 – a bitumen based primer for concrete surfaces. Allow sufficient drying time (after rain, allow at least a day) before applying membrane (will not bond to surface conditioner which has not dried).

Insulation materials:

Radmat recommend the use of an extruded rigid polystyrene insulation in accordance with BS EN 13164 or the subject of a current BBA Certificate.

Filter layer:

Radmat Filter Fleece laid loose with 150 mm laps prevents migration of fire particles into a drainage medium, and prevents sharp stones, flints etc. from passing through the roof build-up. It is 3 mm thick and rot resistant. Trim the fabric to 50–75 mm above the ballast at the perimeter and penetrations. Extend fabric to outlets, ensuring not to cover or restrict water flow to the drainage outlet. Install additional fabric around penetrations to prevent stone entry into the space between the penetration and the insulation.

Surface Protection:

Use pre-cast pavings to avoid wind scour of gravel ballast and/or as walkways (particularly at traffic concentration points). For up to 10% of the total roof area, install pavings directly onto insulation. In excess of 10% of the total roof area, use supportive pedestals to provide a 10 mm (min) drainage layer or air space between the rigid insulation and pavings. Provide additional ballasting of the roof’s perimeter and field to resist wind uplift.

General information


Bitumen, natural rubbers and a blend of polymers

Uniclass 2015

Ss_30_40_30_40 Liquid-applied cold roof covering systemsPrimary


J30/150 Hot applied damp proofing

J30/20 Hot applied damp proofing

J31/130 Inverted roof coating

Specification data - Liquid-applied cold roof covering systems

Product Reference

Permaquik PQ 6100


Not required

Primer PQ 6109, spray or roller applied at 7-16 m²/litre

Coating application


1st coat

Squeegee applied at 3 mm thickness. Brush reinforcement into the surface with 75 mm laps all round

2nd coat

Squeegee applied at 3 mm thickness. Embed coating protection sheet into hot membrane with 75 mm laps


Permaquik 2016 spun bonded polyester roll for general areas

Permaquik Butyl 1.45 mm PQ 2063 for minor movement or dissimilar materials

PQ 2016 polyester scrim strip over construction joints

Additional PQ 047/2063 butyl rubber over bridging joints

300 mm wide Radmat Radflex 125 double laminate movement joint over wider movement joints

Minimum dry film thickness

6 mm nominal thickness

Coating protection

Radmat Standard Protection Sheet

Radmat Heavy DutyProtection Sheet

Permaquik PQ 2450/2550 protection board, ___ mm thick


Not required

Liquid Plastics VCL

Termination and flashing bars

Bitumen compatible sealant

Bitumen compatible adhesive

Permaquik pitch pour sealant

Contact type Bonding Adhesive

Standard product features


Polyester reinforced polymer modified bitumen.

Product Options

Coating protection:

  • Radmat Standard Protection Sheet – Thickness: 1.5 mm. A SBS modified elastomeric bitumen felt with 195 g/m² polyester reinforcement core. It facilitates foot traffic access to applied membrane. Can be exposed to UV for up to 12 months.
  • Radmat Heavy Duty Protection Sheet – Thickness: 5 mm . A SBS modified elastomeric bitumen felt with 250 g/m² polyester reinforcement core. It facilitates heavy duty site traffic access to applied membrane. Can be exposed to UV for up to 12 months.

Permaquik PQ 2450/2550 protection board in the following thicknesses: 2.5 mm, 3 mm and 6 mm.


  • Liquid Plastics Vapour Control Layer if required.
  • Termination and flashing bars to upstand trims.
  • Bitumen compatible sealant.
  • Bitumen compatible adhesive.
  • Permaquik pitch pour sealant.
  • Contact type Bonding Adhesive for bonding Permaquik PQ 2063 butyl reinforcement to substrates.
  • PQ6100 to bond together uncured neoprene flashings.

Digital objects

Platform Compatible Version Certified to




Revit 2016


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Third party certifications

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