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EshaFlex Two Layer PB System on Timber/Concrete 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
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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