EshaFlex 370 FireSafe

EshaFlex 370 FireSafe

Radmat Building Products Ltd

Cap sheet with a fire protection top layer for EshaFlex exposed flat roofing systems, providing a zero spread-of-flame risk and eliminating the potential for fire penetration.

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Application

Fire protection top layer for EshaFlex exposed flat roofing systems.

Suitable Substrates: Timber, concrete, metal deck.

For all applicable roofing systems contact manufacturer and see BBA certificate No. 15/5282.

Description

EshaFlex 370 FireSafe cap sheet is a fire protection top layer for EshaFlex exposed flat roofing systems, providing a zero spread-of-flame risk and eliminating the potential for fire penetration. Will not readily support a flame and subsequently emits minimal smoke, thus reducing the risk of significant hazard to life in the event of a fire.


When fire comes into contact with the surface of the EshaFlex 370 FireSafe cap sheet the presence of volcanic rock in the membrane brings about an endothermic reaction. Heat is actually drawn from the flame to support a process of carbonisation in the cap sheet, so reducing the burn temperature. The resulting unbroken carbonised ‘shell’ then seals off combustible material beneath, denying the already-weakened flame further fuel and preventing any further combustion.


EshaFlex 370 FireSafe cap sheet is a torch-applied SBS modified bituminised polyester/fibreglass composite cap sheet with a black mineral finish suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment. Overlaps must be torched.


Sheet composition:

  • Appearance top side: Mineral granules with thermofusible polypropylene (PP) film to overlap selvage.
  • Coating top side: Styrene-butadiene-styrene (SBS) modified bitumen.
  • Reinforcement: Polyester.
  • Coating bottom side: SBS modified bitumen.
  • Appearance bottom side: Thermofusible PP film.


Overlaps:

  • Sides: 80 mm.
  • Ends: 100 mm.

General information

Finish

Mineral granules

Color

Black

Material

SBS

Polyester

Shape

Rectangular

Size

7500 x 1000 x 4.5 mm

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J41/10 Built-up reinforced bitumen membrane warm deck roof covering

J41/110 Built-up reinforced bitumen membrane warm deck roof covering

J41/115 Single layer reinforced bitumen membrane warm deck roof covering

J41/12 Built-up reinforced bitumen membrane cold deck roof covering

J41/120 Built-up reinforced bitumen membrane inverted roof covering

J41/125 Single layer reinforced bitumen membrane inverted roof covering

J41/130 Built-up reinforced bitumen membrane cold deck roof covering

J41/135 Single layer reinforced bitumen membrane cold deck roof covering

Specification data - Reinforced bitumen roofing sheets Enhanced data

Standard

To BS EN 13707.

Performance characteristics

Visible defects to BS EN 1850-2: Pass; Roll length to BS EN 1848-1: 7.5 m ±0.1 m; Width to BS EN 1848-1: 1.0 m ±0.02 m; Straightness to BS EN 1848-1 <20 mm/10m; Mass per unit area to BS EN 1849-1: 5.2 kg/m² ±0.25 kg/m²; Effective thickness to BS EN 1849-2: 4.5 mm ±0.2 mm; External fire performance to BS 476-3:2004: EXT.F.AA, to BS EN 13501-5: Broof (t4); Watertightness to BS EN 13501-1: Class F; Tensile strength to BS EN 12311-2 (A): 900 N/50mm (MD, ± 20%), 900 N/50mm (TD, ± 20%); Elongation to BS EN 12311-2(A): 35 (MD, ± 20%), 35 (TD, ± 20%); Dimensional stability to BS EN 1107-1: ≤1%; Resistance to Cold Blend, to BS EN 1109: ≤-10°C; Flow resistance at elev. temp to BS EN 1110: >75°C; Adhesion of granules to BS EN 12039: <30%.

Material

-

Carrier material

Polyester.

Bitumen modification

Styrene-Butadiene-Styrene (SBS).

Thickness (minimum)

4.5 mm.

Weight (minimum)

5.2 kg/m².

Surface finish

-

Top

Mineral granules.

Underside

Thermofusible polypropylene (PP) film.

Colour

Black.

Third-party certification

BBA certificate No. 15/5282.

Literature

BBA Certificate EshaFlex Total Roof Waterproofing Systems

BBA Certificate EshaFlex Total Roof Waterproofing Systems

Roofing Systems Brochure

Roofing Systems Brochure

BBA EshaFlex Total Green Roof Waterproofing Systems

BBA EshaFlex Total Green Roof Waterproofing Systems

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