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Plylok® - Insulation

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Recticel Insulation

Rigid PIR insulation with plywood laminate for warm flat roofs on domestic projects.

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Application

For warm flat roofs on domestic projects.

Description

Plylok is a high performance rigid polyisocyanurate (PIR) foam board for use in warm flat roofs under traditional bituminous waterproofing and single ply membranes.


It is faced both sides with a multi-layer coated aluminium foil with a layer of 6 mm plywood bonded for additional strength and rigidity.


Roof drainage

To ensure adequate drainage the roof should have a minimum finished fall of 1:80. This may mean designing for twice the minimum finished fall to account for building inaccuracies, roof deflection and building settlement.


Thermal bridging

With increasing levels of insulation it is important to ensure the continuity of insulation at the junction of elements.


- Wind uplift

The wind uplift force exerted on the roof will vary according to geographical location, site location and building height. Reference should be made to BS 6399 and the membrane manufacturer’s recommendations for the number of fixings and the fixing pattern.


Features and benefits:

  • Manufactured to ISO 9001 Quality and ISO 14001 Environmental Management Systems.
  • Manufactured using a blowing agent with zero ozone depletion potential (ODP) and low global warming potential (GWP).
  • Low thermal conductivity of 0.022 W/m·K.
  • No requirement for roof ventilation and condensation risk within the roof is reduced as the structure is maintained close to the internal temperature.

General information

Color

Brown

White

Cream

Beige

Yellow

Material

Polyisocyanurate (PIR)

Plywood

Polyisocyanurate

Shape

Rectangle

Length

2400 mm

Width

1200 mm

Height

96 mm

116 mm

126 mm

Uniclass

Pr_25_71_63_66 Polyisocyanurate (PIR) foam boardsPrimary

CAWS

J41/10 Reinforced bitumen membrane warm deck roof covering

J41/420 Rigid urethane foam insulation

J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

Specification data - Polyisocyanurate (PIR) foam boards

Standard

To BS EN 13165.

Fire performance

To EN 13501-1, Euroclass F.

Guidance for specification option:

Class 1 (BS 476-7) (insulation only).

Thermal conductivity (maximum)

0.022 W/m·K (insulation only).

Compressive strength at 10% deformation

Exceeds 150 kPa at yield.

Guidance for specification option:

Suitable for loads associated with maintenance traffic. Care must be taken to avoid damage to boards by impact or concentrated loads during installation.

Cross section

Uniform thickness.

Thickness (nominal)

96 mm.

116 mm.

126 mm.

Face size (length x width)

2400 x 1200 mm.

Density

± 30 kg/m³.

Facing

Faced both sides with a multi-layer coated aluminium foil with a layer of 6mm plywood.

Edges

Straight.

Sustainability data

Country of product manufacture

United Kingdom

Literature

Plylok flat roof insulation technical datasheet

Plylok flat roof insulation technical datasheet

Recticel Insulation Flat Roof Specification Guide V1.5

Recticel Insulation Flat Roof Specification Guide V1.5

Recticel Insulation Product Guide

Recticel Insulation Product Guide

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