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FLEX-R

LQD-PUR 20 Polyurethane Waterproofing System

Manufacturer: FLEX-R 

Materials: Polyurethane 

The LQD-PUR 20 Polyurethane Waterproofing System consists of:
• LQD-PUR Coat A — a single part (moisture triggered) polyurethane for use as base coat
• LQD-PUR Coat B — a single part (moisture triggered) polyurethane
• LQD-PUR Reinforcement Matt — for use as system reinforcement
• LQD-PUR GP Primer — a one-part primer, for preparing exposed bitumen roofing membranes and porous asphalt,
cementitious and timber substrates where required
• LQD-PUR PVC Primer — a one-part primer, for preparing PVC single-ply membranes prior to application of the
embedment coat
• LQD-PUR Metal Primer — a two-part primer for preparing metal substrates
• LQD-PUR Reactivator — for preparing LQD-PUR Coat A left for more than five days and aged areas under repair
prior to the application of new coats.

BBA logo

Number: 21/5904 PS1
Issue date: 24/11/2021

Approved for use on

Flat Roofs Pitched Roofs 

The LQD-PUR 20 Polyurethane Waterproofing System is satisfactory for use on flat and pitched roofs with limited
access.

Substrate

Concrete Mastic Asphalt Mineral Wool Insulation Polyurethane Roof Coatings Reinforced Bituminous Membranes Single Ply Membranes - PVC Steel Timber XPS/PIR 

The LQD-PUR 20 Polyurethane Waterproofing System is satisfactory for use on flat and pitched roofs with limited
access on:
• concrete
• asphalt
• bituminous roofing membranes, including mineral surfaced
• steel
• PVC membranes
• existing polyurethane coatings
• plywood in conjunction with a specified carrier membrane
• polyisocyanurate (PIR) foam insulation boards in conjunction with a specified carrier membrane
• mineral wool insulation boards in conjunction with a specified carrier membrane.

Durability

20 Years 

Under normal service conditions, the system will provide a durable waterproof covering with a service life of at least 20 years.

Installation Requirements

Installation of the system must be carried out only by specialist roofing contractors trained and approved by the Certificate holder.

Fire Safety

When classified in accordance with BS EN 13501-5 : 2016 the following systems achieved a BROOF(t4) classification and so are unrestricted with respect to proximity to a boundary by the documents supporting the national Building Regulations (See full BBA certificate for more information):

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

Certified Products

The following products are also covered by the same certification:

  • Downloads

    • BBA Certificate – LQD-PUR 20 Polyurethane Waterproofing system

      Document class :

      Document type : Link

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LRWA Is not an accreditation body and does not test products or have a role in determining whether a product or system is fit for purpose. An agrément certificate is only issued for a successful product or system following a detailed assessment including both laboratory testing and inspections by the certificate provider.”