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EshaFlex Two Layer PB System on Metal Deck

Third party certifications:
  • BBA Agrément Certificate

    Certificate type

  • QA Certificate

    Certificate type

Radmat Building Products Ltd

Built-up bituminous roofing system.

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+44 (0)1858 410372 www.radmat.com
Description

Torch-applied, built-up bituminous roofing system for warm roofs, cold roofs and green roofs.

General information
Specification data - Reinforced bitumen membrane warm roof covering systems
Product Reference

Eshaflex

Primer

Not required

Esha Primer

Esha SA Primer

Vapour control layer

EshaBase SA Alu 2 mm

EshaBase SA Alu 4 mm

Insulation

Not required

EshaTherm PIR B

EshaTherm PIR B tapered

Adhesive

Not required

EshaStik

Base layer

EshaBase SA

Requires Esha SA Primer.

EshaFlex Vent

EshaFlex 370 Plain

For two layer torch-on systems.

Capsheet

EshaFlex 370 Plain

For loose-laid and ballasted systems.

EshaFlex 370 Black mineral

EshaFlex 370 WS Mini Slate

Product Options

Components:

– Esha Primer:

  • Quick-drying, black, bitumen, priming solution designed to penetrate and seal a variety of porous surfaces.
  • Composition: High quality bitumen and hydrocarbon solvents.
  • Density: 0.879 kg/L.
  • Consumption: 0.1 L/m² on metal/smooth bituminous roofing, 0.2 L/m² on concrete.

– Esha SA Primer:

  • Solvent-based, cold-applied, bituminous primer for use with Esha SA roofing membranes and Esha Universal SA on metal, concrete, stone or timber.
  • Density: 0.840 kg/L.
  • Consumption: 100-200 g/m² depending on substrate.

– EshaBase SA Alu 2 mm:

  • Self-adhesive aluminium cored vapour barrier for bituminous roofing-systems.
  • Upper surface: Sand, with removable overlap film on SBS modified bitumen.
  • Reinforcement: Glass fabric and aluminium/ polyester laminate.
  • Underside: SBS modified self-adhesive bitumen with PP-release film.
  • Visible defects: Pass.
  • Length: 10 m.
  • Width: 1 m.
  • Straightness: Pass.
  • Mass per unit area is 2.2 kg/m² ±10%.
  • Effective thickness: 2.0 mm ± 0.2 mm.
  • Reaction to fire: Class E-d2.
  • Water tightness (EN 1928-B): Pass, ≥60 kPa.
  • Tensile strength (EN 12311-2-A): MD, ≥1250 N/50 mm ± 20%; CD, 2000 N/50 mm ± 20%.
  • Elongation: 5% ± 3%.
  • Flexibility at low temperature (EN 495-5): ≤-20 ºC.
  • Dimensional stability (EN 1107-2): ≤0.5%.
  • Hail resistance (EN 13583): ≥ 17 m/s.
  • Water vapour resistance: 8.12 E12 m².s.Pa/kg.

– EshaBase SA Alu 4 mm:

  • Self-adhesive aluminium cored vapour barrier for bituminous roofing-systems.
  • Upper surface: Sand, with removable overlap film on SBS modified bitumen.
  • Reinforcement: Glass fabric and aluminium/ polyester laminate.
  • Underside: SBS modified self-adhesive bitumen with PP-release film.
  • Visible defects: Pass.
  • Length: 7.5 m.
  • Width: 1 m.
  • Straightness: Pass.
  • Mass per unit area is 4.9 kg/m² ±10%.
  • Effective thickness: 4.2 mm ± 0.2 mm.
  • Reaction to fire: Class E-d2.
  • Water tightness (EN 1928-B): Pass, ≥60 kPa.
  • Tensile strength (EN 12311-2-A): MD, ≥1250 N/50 mm ± 20%; CD, 2000 N/50 mm ± 20%.
  • Elongation: 5% ± 3%.
  • Flexibility at low temperature (EN 495-5): ≤-10 ºC.
  • Water vapour resistance: 8.12 E12 m².s.Pa/kg.

– EshaTherm PIR B:

  • Rigid polyisocyanurate (PIR) foam insulation faced with bitumen coated glass fibre tissue on one side and polypropylene fleece on the other.
  • Ozone Depletion Potential: Zero.
  • Global Warming Potential: 3.
  • BRE Green Guide Rating: A.
  • Compressive Strength (BS EN 826:1996): >150 kPa.
  • Thermal conductivity (λ value): 25–79 mm, 0.026 W/mK; 80–119 mm, 0.025 W/mK; 120–200 mm, 0.024 W/mK.
  • Width: 834 mm.
  • Length: 1200 mm.
  • Thickness: 30–200 mm.

– EshaTherm PIR B tapered:

  • Tapered polyisocyanurate (PIR) foam insulation for use in bituminous roofing-systems to give finished falls of either 1:60 or 1:80.
  • Faced with bitumen coated glass fibre tissue on one side and polypropylene fleece on the other.
  • Ozone Depletion Potential: Zero.
  • Global Warming Potential: 3.
  • BRE Green Guide Rating: A.
  • Thermal conductivity (λ value): 25–79 mm, 0.026 W/mK; 80–119 mm, 0.025 W/mK; 120–200 mm, 0.024 W/mK.
  • Width: 834 mm.
  • Length: 1200 mm.
  • Thickness: Varies according to taper.

– EshaStik:

Moisture curing polyurethane adhesive for bonding insulation materials such as polyurethane/polyisocyanurate foam, phenol resin foam, mineral wool and polystyrene foam to a variety of substrates including EshaBase vapour layers, Concrete, Timber, primed galvanised or coated sheet steel and/or mineralised bituminised roofing materials.

– EshaBase SA:

  • Self-adhesive SBS modified base layer for bituminous roofing system.
  • Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment.
  • Visible defects: Pass.
  • Length: 10 m.
  • Width: 1 m.
  • Straightness: Pass.
  • Mass per unit area: 2.0 kg/m ± 20%.
  • Effective thickness: 2.0 mm ± 0.2 mm.
  • Reaction to fire: Class F.
  • Tensile strength (EN 12311-2-A): MD, ≥1250 N/50 mm ± 20%; CD, 2000 N/50 mm ± 20%.
  • Elongation: 5% ± 3%.
  • Flexibility at low temperature (EN 495-5): ≤-20ºC.
  • Dimensional stability (EN 1107-2): ≤0.5%.
  • Hail resistance (EN 13583): ≥ 17 m/s.
  • Water vapour resistance, µ: 20 ± 30%.

– EshaFlex Vent:

  • SBS modified bituminised fibreglass fleece, with indirectly thermally activated coating, perforated aluminium foil and removable film (patented) on the underside.
  • Upper surface: SBS modified bitumen with sand finish and removable overlap film.
  • Reinforcement: Fibreglass fleece
  • Underside: SBS modified bitumen with perforated aluminium foil and PP release film.
  • Visible defects: Pass.
  • Length: 15 m.
  • Width: 1 m.
  • Straightness: Pass.
  • Mass per unit area: 2.1 kg/m ± 10%.
  • Effective thickness: 2.1 mm ± 0.2 mm.
  • External fire performance: Froof.
  • Reaction to fire: Class F.
  • Water tightness (EN 1928-B): Pass, ≥10 kPa.
  • Tensile strength (EN 12311-2-A): MD, ≥00 N/50 mm ± 20%; CD, 375 N/50 mm ± 20%.
  • Elongation: MD, 3% ± 1%; CD, 3% ± 1%.
  • Flexibility at low temperature (EN 495-5): ≤-25ºC.
  • Dimensional stability (EN 1107-2): ≤0.1%.
  • Water vapour resistance, µ: 20.

– EshaFlex 370 Plain:

  • Torch applied SBS modified bitumen cap sheet in loose laid and ballasted systems or as base layer in two layer torch-on systems.
  • Upper surface: SBS modified bitumen with sand coating.
  • Reinforcement: Polyester fleece and glass yarn.
  • Underside: SBS modified bitumen finished with grooves and PE film.
  • Visible defects: Pass.
  • Length: 7.5 m.
  • Width: 1 m.
  • Straightness: Pass.
  • Mass per unit area: 4.1 kg/m ± 10%.
  • Effective thickness: 3.8 mm ± 0.2 mm.
  • External fire performance: Froof.
  • Reaction to fire: Class F.
  • Water tightness (EN 1928-B): Pass, ≥10 kPa.
  • Tensile strength (EN 12311-2-A): MD, ≥700 N/50 mm ± 20%; CD, 700 N/50 mm ± 20%.
  • Elongation: MD, 18% ± 15%; CD, 25% ± 15%.
  • Flexibility at low temperature (EN 495-5): ≤-20ºC.
  • Dimensional stability (EN 1107-2): ≤0.5%.
  • Water vapour resistance, µ: 20 ± 30%.

– EshaFlex 370 Black mineral:

  • Torch applied SBS modified bituminised polyester and fibreglass composite cap sheet.

Digital objects
PlatformCompatibleVersionCertified to
IFC
IFC2X3 1 1.3
Revit
Revit 2016 3 2.0
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Literature
Third party certifications

Additional certifications:

  • 07/4487 : (EshaTherm PIR B)
  • KOMO: Certificate: K66713/01 : EshaFlex
  • CE marked: Certificate: CE-0620
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