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40 Below — Flashing Tape
Description

 40 Below Flashing Tape is a self-adhesive flashing tape to seal around windows, doors, and other joinery openings as a secondary defence against water penetration.

This classic, white facer tape has excellent adhesion in a wide range of conditions. It is great value for money and with a no-nonsense performance record, earns the trust of the professionals. 40 Below is compatible with most wraps and sealants so eliminates issues on site.

Key Features
  • Incredible adhesion in all conditions
  • Simple 4 step installation — saves time, reducing costs
  • Reliable and dependable weather tightness
  • An Optional Corner Guard is easy to install and increases protection to framing
  • Rigid Air Barriers — 40Below is tested and approved for sealing the joints on Rigid Barriers. Tested and approved for use by BGC Durabarrier and OS’BraceRAP
Scope of Use

New Zealand Building Code Standard (NZBC)

  • For a risk score between 0-20 in accordance with NZBC Acceptable Solution E2/AS1.
  • Passed NZS3604 Building Wind Zones up to and including ‘Extra High’.
  • Passes nail sealability to ASTM 1970-01 section 7.9.
  • New smooth white facer tape also passes screw sealability to AAMA 711-13.
  • Suitable as a single layer application over a timber frame
  • Extremely thin only 0.2mm, allows for easier fitting of windows and doors.

Rigid Air Barriers

40 Below is tested and approved for sealing the joints on Rigid barriers. Check for product compatibility with your Rigid Air Barrier supplier before installation. 

Limitations on Use
  • Works in temperatures from -40°C up to 65°C.
  • Compatible with most building wraps
  • Compatible with most building sealants — check suitability with sealant manufactures. Alternatively, do a patch test before use

Warning:

  • Do not apply any solvent-based glues or adhesives/sealants to the tape as it may react with the adhesive
  • Not suitable where screw sealability is required
NZS 3604 Wind Zone Very High suitable
Very High WInd Zone
Statement of Building Code Compliance
  • For a risk score between 0-20 in accordance with NZBC Acceptable Solution E2/AS1.
  • Passed NZS3604 Building Wind Zones up to and including ‘Extra High’.
  • Passes nail sealability to ASTM 1970-01 section 7.9.
  • New smooth white facer tape also passes screw sealability to AAMA 711-13.
  • Suitable as a single layer application over a timber frame
In-Service History

Masons Plastabrick has been in business for over 20 years. Masons stand by all their products.

B2 Durability compliant
Durability
E2 External Moisture compliant
External Moisture
F2 Hazardous Building Materials compliant
Hazardous Building Materials
Documents
CodeMark Product Certificate

CM70075: 2020

Maintenance and Warranty

2021

Application Guide: Seam Tape

2018

Installation Instructions: 40 Below

June 2022

Brochure

2020

Find a Local Rep

Since being established in 1999, Masons has become a key supplier in the New Zealand building industry, offering a variety of quality products and tools for a whole range of building requirements.

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