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ARDEX WPM 114 - Shelterbit Vented Base Sheet

ARDEX WPM 114 is an APP (Atactic Polypropylene) plastomeric type modified bitumen membrane vented base sheet, consisting of a specially formulated bituminous compound of distilled asphalt modified with selected high-grade viscoelastic polymers. ARDEX WPM 114 is used as part of a multi-layer waterproofing system where there may be potential moisture issues in the substrate.

Key Features
  • CE Certification (GB06/69203)
  • BRANZ Appraised (No. 463)
  • CodeMark Certification (No. AQ-030516-CMNZ)
  • Vented base sheet for excellent vapour control
  • Counts as a waterproofing layer in a multi-layer system
  • Excellent elongation and flexibility
  • 4mm gauge
Categories / Ranges
Membrane Roofing
Scope of Use

ARDEX WPM 114 is used as part of a multi-layer system in roofing applications for waterproofing. It has been designed to be used in situations where there may be potential moisture issues in the substrate and can only be used as the base sheet of a multi-layer roofing system.

  • Virtually eliminates bubbles and blisters forming underneath the waterproofing layer.
  • Allows vapour permeating through the deck to diffuse underneath the waterproofing where, ideally, ARDEX Low Rise vents should be installed to allow the vapour to escape to the atmosphere.
  • Eliminates the creation of stresses in the waterproofing layers thus greatly reducing failures in the waterproofing caused by deck movements.
  • Is the ideal solution for controlled, partially attached first layer in a multi-layer system.
Statement of Building Code Compliance

In the opinion of BRANZ, Shelterbit Roofing Membranes, if designed, used, installed and maintained in accordance with the statements and conditions of Appraisal No. 463 (2011), will meet the following provisions of the NZBC:

  • Clause B2 Durability: Performance B2.3.1 (b), 15 years. Shelterbit Roofing Membranes meet this requirement.
  • Clause E2 External Moisture: Performance E2.3.1 and E2.3.2. Shelterbit Roofing Membranes meets these requirements.
  • Clause F2 Hazardous Building Materials: Performance F2.3.1. Shelterbit Roofing Membranes meet this requirement and will not present a health hazard to people.

Shelterbit Roofing Membranes have been appraised as an Alternative Solution in terms of New Zealand Building Code compliance. The membranes are an alternative to the membranes specified in NZBC Acceptable Solution E2/AS1, and an Alternative Solution subject to specific design for other buildings not covered within E2/AS1.

B2 Durability compliant
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
BRANZ Appraised
BRANZ Appraised
Product Assurance
ARDEX Warranty Information
Maintenance Instructions
Other Literature
ARDEX Company Profile

ARDEX New Zealand supply and manufacture a range of quality construction materials, including products for levelling floors; external and internal waterproofing; and fixing natural stone and tiles.

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