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Application

  • Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment.
  • Torch applied to base sheet or suitable surface in accordance with the Radmat specification. Overlaps must be torched.

Description

EshaTherm TK40 is a thermo adhesive vapour pressure distribution base layer for use in partially bonded two layer systems.


Features and benefits:

  • EshaTherm TK40 is an SBS modified bituminised fibreglass fabric with a strip applied thermal adhesive coating.
  • Suitable for all types of roof with a flat or sloped roof construction on new build or refurbishment.
  • Reaction to fire: Class F.
  • Conforms to EN 13707:2004 +A2:2009.


Product information:

  • Top side: Macro perforated film finished with sand
  • Coating topside: SBS modified bitumen.
  • Reinforcement: Glass fabric.
  • Coating bottom side: SBS modified bitumen & partially applied thermal adhesive coating.
  • Appearance bottom side: PE-film.


Overlaps:

  • Side overlaps: 80 mm.
  • End overlaps: 100 mm.


For all applicable roofing systems contact Radmat Building Products and see BBA certificate No.15/5282. For a comprehensive NBS J41 specification contract Radmat Building Products.

General information

Color

Black

Finish

Guidance for specification option:

Macro perforated film finished with sand.

Material

Bitumen

Guidance for specification option:

SBS modified bituminised fibreglass fabric with a strip applied thermal adhesive coating.

Size

7500 x 1000 x 3.8 mm

Uniclass

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J41/12 Reinforced bitumen membrane cold deck roof covering

J41/10 Reinforced bitumen membrane warm deck roof covering

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

J41/400 Built-up reinforced bitumen waterproof covering

Specification data - Reinforced bitumen roofing sheets

Standard

To BS EN 13707.

Performance characteristics

Visible defects: Pass, Straightness: Pass.

Material

-

Carrier material

Glass fibre.

Thickness (minimum)

3.8 ± 0.2 mm.

Weight (minimum)

4.2 ± 10% kg/m².

Surface finish

-

Top

Sanded.

Guidance for specification option:

Macro perforated film finished with sand.

Underside

PE-film.

Colour

Black.

Roll length

To EN 13707, 7.5 m.

Roll width

To EN 13707, 1 m.

Reaction to fire

To EN 13707, Class F.

Watertightness

To EN 13707, Pass ≥ 10 kPa.

Tensile strength (Machine direction)

To EN 13707, 1250 ± 20% N/50 mm.

Tensile strength (Cross direction)

To EN 13707, 2000 ± 20% N/50 mm.

Elongation MD/CD

To EN 13707, 5 ± 3%.

Flexibility at low temperature

To EN 13707, ≤ 10°C.

FlowResistanceRange

To EN 13707, ≥ 100°C.

Dimensional stability

To EN 13707, ≤ 0.1%.

Water vapour resistance

To EN 13707, 20 000 μ.

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