IKO System Underlay VCL

Application

The product has a smooth upper surface that forms a suitable surface for bonding thermal insulation.

Description

The IKO system underlays are for use as vapour control layers (VCLs) for adhered IKO Polymeric roofing systems that can be applied in a range of ways.

Systems T-O under layer (Torch-on): Consists of a polyester carrier coated with styrene-butadiene-styrene (SBS) rubber modified bitumen. The upper surface is finished with fine sand and the lower surface has a sacrificial film which rapidly melts during the torching operation.

Systems (H-A) Heat-Activated Detailing Underlay: The product is an elastomeric self-adhesive under layer incorporating a robust polyester reinforcement for greater durability, coated with SBS modified bitumen.

Features and benefits:

  • High tensile polyester base.
  • High resistance to damage and delamination.
  • SBS bitumen coating offering excellent low temperature flexibility.
  • Prevents penetration of water vapour and damage to roof construction.
  • Range of application methods to suit project requirement.

Applications:

The product has a smooth upper surface that forms a suitable surface for bonding thermal insulation.

General information

Uniclass 2015

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

CAWS

J42/10 Warm deck roof covering

J42/110 Warm deck roof covering

J42/120 Inverted roof covering

J42/130 Cold deck roof covering

J42/395 Air and vapour control layer

Specification data - Reinforced bitumen roofing sheets

Product Reference

IKO System Underlay VCL

Standard product features

Technical characteristics:

- Systems T-O underlayer:

  • Roll weight: 38.2 kg.
  • Weight: 3.18 kg/m².
  • Roll dimensions: 12 x 1 m.
  • Base type: 170 g/m² polyester.
  • Moisture vapour resistance: >1000 MNs/g.

- Systems H-A detailing underlayer:

  • Roll weight: 33.0 kg.
  • Weight: 2.06 kg/m².
  • Roll dimensions: 16 x 1 m.
  • Base type: 170 g/m² polyester.
  • Moisture vapour resistance: >1000 MNs/ g.

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