NBS Source
I'm a manufacturer
Compare variants

FR Reveal Cavity Closer

Verified by manufacturer 7 days ago

Stone Mineral Wool Insulation

Mayplas Variant:

A cavity closer for fire, thermal and acoustic insulation.

Jump to:
+44 (0)161 447 8320 Website

Application

Designed to be used for masonry cavity wall construction. Suitable for vertical and horizontal application.

Description

A cavity closer for thermal, acoustic and fire insulation, which reduces cold bridging when used for door and window openings. It consists of a strip of engineered stone mineral wool insulation laminated to a polythene DPC. It is produced in a range of sizes to fit cavity widths up to 100mm within masonry systems.

Features and benefits:

  • Thermal bridging solution.
  • Range of sizes available.
  • Provides insulation against the passage of fire through wall cavity.
  • DPC to BS 6515.
  • Suitable for horizontal and vertical applications.

Mayplas FR Reveal Cavity Closer has been independently tested in accordance with BS EN 1366-4:2021 and classified in accordance with BS EN 13501-2:2023 for 120 minutes Integrity and 60 minutes insulation (vertically) and 15 minutes insulation (horizontally)

General information

Material

Mineral wool

Shape

Rectangle

Height

37 mm

Guidance for specification option:

For 25 mm wide cavity.

40 mm

Guidance for specification option:

For 30 mm wide cavity.

50 mm

Guidance for specification option:

For 40 mm wide cavity.

60 mm

Guidance for specification option:

For 50 mm wide cavity.

70 mm

Guidance for specification option:

For 60 mm wide cavity.

Show more

Manufacturer guidance

Thickness of insulation.

Uniclass

Pr_25_80_80_79 Sleeved mineral wool cavity barriersPrimary

CAWS

F30/18 Cavity closers

F30/180 Cavity closers

Specification data - Sleeved mineral wool cavity barriers

Residual cavity width

25 mm.
30 mm.
40 mm.
50 mm.
60 mm.
70 mm.
80 mm.
90 mm.
100 mm.

Fire performance

120 minutes to BS EN 13501-2.

Guidance for specification option:

Vertically and horizontally. Tested to BS EN 1366-4.

Manufacturer guidance

Resistance to fire of product.

Thermal Conductivity:

0.035 W/mK.

Fire resistance

60 minutes.

Guidance for specification option:

Vertical. Tested to BS EN 1366-4.

15 minutes.

Guidance for specification option:

Horizontal. Tested to BS EN 1366-4.

Material

Stone mineral wool.

Length

1200 mm.

Width

100 mm.

Sustainability data

Material

Mineral wool

Literature

Mayplas FR Reveal Cavity Closer Technical Data Sheet Nov 2024

Mayplas FR Reveal Cavity Closer Technical Data Sheet Nov 2024

FR Reveal Cavity Closer

FR Reveal Cavity Closer

Similar products from Mayplas

551-552 Cavity Barriers

551-552 Cavity Barriers

555 Thermal Cavity Closer

555 Thermal Cavity Closer

MP557 Acoustic Party Wall DPC - Acoustic Party Wall Cavity Barrier

MP557 Acoustic Party Wall DPC - Acoustic Party Wall Cavity Barrier