duroTUF TPO membrane is a high quality TPO (ThermoPlastic
Polyolefin) which has been formed into a membrane sheet and reinforced
with a heavy duty polyester scrim, used to provide waterproofing
protection for a variety of roofing and exterior deck applications. The
duroTUF TPO membrane is reinforced with polyester fabric to provide
excellent wind uplift resistance, puncture resistance and finished
physical properties. TPO formulation was developed to allow for extreme
pliability, flexibility and weldability during installation. Along with
such installation advantages, our TPO’s state-of-the-art formulation
helps our product to resist extreme weather conditions, including
ultraviolet radiation and high surface temperatures
duroTUF TPO membrane is a single ply polyester reinforced
thermoplastic polyolefin (TPO) membrane system which comes in 3.0m wide
rolls by 30.0m long with the option of 1.14mm and 1.5mm thick.
Scope of use
duroTUF TPO is a suitable substrate for timber raft
systems(Decks) tileJAKs with tiles, low slope roofs, gutters, or warm roof designs and when used with the Schluter 25 uncoupling
system , a ceramic tiled finish can be achieved.
New Zealand Building Code (NZBC)
The product will, if employed in accordance with the supplier's installation and maintenance requirements, assist with meeting the following provisions of the building code:
- Clause B2 Durability: Performance B2.3.1(b)
- Clause E2 External moisture: Performance E2.3.1, E2.3.2, E2.3.6
- Clause F2 Hazardous building materials: Performance F2.3.1
The duroTUF TPO membrane will meet the following provisions
B2 Durability B2.3.1(b)
E2 External Moisture E2.3.1 , E2.3.2 and E2.3.6
F2 Hazardous Building Materials F2.3.1
The product meets the requirements set out in the following documents, or relevant parts of cited standards within the documents:
AS/NZS 2269 Plywood - Structural
BRANZ Good Practice - Membrane Roofing
AS/NZS 1170:2002 Structural Design action - general principles
NZS3101:2006 The design of Concrete Structures
NZS 3604:2011 Timber Framed Buildings
Acceptable Solutions and Verification Methods for NZBC External Moisture Clause E2
The Building Regulations 1992
The product has and can make available the following additional evidence to support the above statements:
Use in Service History
The in service history of TPO membranes in New Zealand is now 13 years without any issues.
The duroTUF TPO®system is suitable to be applied over concrete, steel,
fibre cement boards or construction plywood substrates. duroTUF TPO® has
been independently appraised as an Alternative Solution in terms of the
NZBC, and complies with NZBC Acceptable Solution E2/AS1 Paragraph 8.5.
See Waterproofing Systems NZ Ltd technical Manual.
The duroTUF TPO®system should be installed in dry conditions. Note that a temperature of at least 12ºC is required before laying the membrane and the substrate must have a maximum moisture content of 20% at the time of laying. The “tack off” time for the duroTUF TPO®adhesive will be extended when installing incooler conditions, or when the humidity is high.
Only applied by licenced LBP registered Waterproofing Systems NZ ltd applicators.
When installed in accordance with WPSNZ specifications, the duroTUF TPO®system will meet the NZBC B2.3.1 (b) requirements of 15 year durability. duroTUF TPO®meets the ASTM D6134 standard required by the Ministry of Business, Innovation and Employment E2/AS1 Acceptable Solution.The durability opinion given by BRANZ states that when subjected to normal conditions of environment and use, duroTUF TPO®is expected to have a service life of at least 15 years.
When laid by a Waterproofing SystemsNZ Ltd approved applicator in accordance with WPSNZspecifications, a material warranty for up to 20 years is available