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Description

Mayplas 531 Foil Faced Glass Fibre Roll is designed for use in thermal and acoustic applications where additional tear strength and a high efficiency vapour barrier are required. The foil facing forms a vapour barrier to DIN 53122 and is usually placed on the warm side of the structure.

Benefits:

  • 25–200 mm thicknesses.
  • Vapour barrier to DIN 53122.
  • Class 1 surface spread of flame.
  • Ideal for use under metal cladding.

General information

Uniclass 2015

Pr_25_57_06_53 Mineral wool insulationPrimary

CAWS

P10/10 Loft insulation

P10/125 Insulation laid between ceiling ties/ joists

P10/135 Insulation laid across ceiling ties/ joists

P10/140 Insulation fitted between rafters

P10/15 Insulation fitted between rafters

P10/190 Insulation fitted between studs

P10/220 Sound insulation within timber framed separating wall

P10/240 Insulation fitted between floor joists

P10/250 Insulation supported between floor joists

P10/40 Insulation fitted between studs

P10/45 Insulation laid between floor joists

P10/50 Insulation supported between joists

Specification data - Mineral wool insulation

Product Reference

531 Foil Faced Glass Fibre Roll

Thickness

25 mm

40 mm

50 mm

60 mm

80 mm

100 mm

150 mm

170 mm

200 mm

Product Options

Foil facing:

  • Foil/ Scrim/ Kraft paper laminate.
  • Vapour barrier to DIN 53122.
  • Class 1 surface spread of flame to BS EN 476-7.

Glass fibre nominal density:

  • 10 kg/m³: 60, 80, 100, 150 and 200 mm.
  • 20 kg/m³: 25, 40 and 50 mm.

Thermal resistance (R-value):

  • 25 mm: 0.75 W/m²K.
  • 50 mm: 1.51 W/m²K.
  • 60 mm: 1.35 W/m²K.
  • 80 mm: 1.80 W/m²K.
  • 100 mm: 2.25 W/m²K.
  • 150 mm: 3.40 W/m²K.
  • 170 mm: 3.85 W/m²K.
  • 200 mm: 4.50 W/m²K.

Glass fibre fire rating:

A1 as defined in BS EN 13501-1.

Acoustics:

When used for sound absorption over suspended ceilings, Mayplas 531 will typically achieve a noise reduction coefficient of 0.8 in the range 125–400 Hz.

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