Thermathene Black

THERMATHENE BLACK

Damp Proof Membrane (DPM)



Thermathene Black is a 250 micron concrete underlay that is made from a tear and puncture resistant polyethylene film.  It is commonly known as Damp Proof Membrane (DPM).

Product Specifications

Thermathene Black comes in two roll sizes:

Product Code Width Length Coverage
PF250025 4000mm 25m 100m² coverage
PF250050 4000mm 50m 200m² coverage

Scope of use

Thermathene Black intended for use as a damp-proof membrane separating concrete slab from ground soil.  The product acts as a vapour barrier to stop ground moisture penetrating the concrete.  Themathene Black must be sealed with Themakraft White General Purpose tape at the laps joints to form a complete vapour barrier. 


General

  • Unaffected by LOSP or other solvent based treated timber.  However, LOSP or other solvent based treated timber must have sufficient time for the solvent to flash off in a well ventilated area. Recommended minimum 7 days.
  • 4m x 25m [100m²] and 4m x 50m [200m²] unfolded size.
  • 250 Micron in thickness.

Limitations

  • Maximum weather or UV exposure in 28 days. 
  • Cannot be used as a roof or wall underlay. 

Compliance

Thermathene Black is an acceptable solution as per the requirements of the NZBC. Thermathene Black meets the requirements of NZBC 3604:2011 Clause 7.5.4.2, NZBC Acceptable Solutions E2/AS1, Table 23 and NZS 4229:2013 Clause 7.4 & 7.6.


When Thermathene Black is used and installed as a damp-proof membrane as per Thermakraft’s literature, the product will meet or contribute to meeting the following provisions of the NZBC: Clause B2 Durability: Performance B2.3.1 (a), 50 years, Clause E2 External Moisture: Performance E2.3.3 & Clause F2 Hazardous Materials: Performance F2.3.1.


Product Warranty

Standard Thermakraft warranty applies. Refer to Thermakraft Warranty Statement for further details. This item is available online here or call 0800 806 595.

Related products

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Premium Joining Tape

Synthetic tape providing superior bonding and edge sealing for joining underlays and rigid sheathing products.

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Thermastrap

White General Purpose Tape

Acrylic adhesive tape that provides excellent bonding to most substrates.


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