NBS Source
Paratherm F

Description

General:

A foil faced, CFC free, PIR cored insulation board suitable for use with most mechanically fixed single ply roofing waterproofing membranes.

General information

Uniclass

Pr_25_71_63_67 Polyurethane (PUR) foam boardsPrimary

CAWS

J41/10 Reinforced bitumen membrane warm deck roof covering

J41/420 Rigid urethane foam insulation

J42/10 Warm deck roof covering

J42/420 Rigid urethane foam insulation

Specification data - Polyurethane (PUR) foam boards

Product Reference

Paratherm F

Thickness

35 mm

40 mm

45 mm

50 mm

55 mm

60 mm

70 mm

75 mm

80 mm

85 mm

Standard product features

Board facing:

Foil.

Board size:

2400 x 1200 mm.

Density:

32 kg/m³.

Compressive strength:

150 kPa.

Water vapour resistance:

>100 MNs/g.

Thermal conductivity (k value):

0.020 W/mk.

Fire performance:

  • BS 476: Part 7: 1987(1993) Class 1 Rating.
  • Where used with bitumen based membranes or mastic asphalt the board must be isolated with a secondary layer, e.g. fibreboard. On metal decks the long edges of the board should be at right angles to the trough openings or laid diagonally across the corrugation line and care must be taken to ensure that all joints are supported by the deck. Taping of joints is not required.

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