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Super SAM 125 — Self‑Adhering Acoustic and Crack Isolation Sheet Membrane
Description

Super SAM 125 is a premium 3.18 mm thick, self‑adhering, self‑healing sound control and crack isolation sheet membrane designed for interior and exterior floor applications requiring impact and airborne sound reduction. Engineered from modified elastomers, sound‑deadening resins, and reinforced woven fibres, it delivers high sound performance ratings (IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile; IIC 56, STC 61 on wood joist systems) and protects against lateral substrate movement up to 9.5 mm.

The membrane is compatible with a wide range of floor finishes including tile, stone, hardwood, and commercial vinyl, and can be installed over concrete, plywood, cement board, terrazzo, and existing tile. It also resists moisture vapour transmission (MVT) when installed with NAC TAC, NAC TAC II, or NS97 primers. Super SAM 125 is Clean Air GOLD certified for low VOC emissions, allowing safe use in residential and commercial projects such as apartments, hotels, classrooms, offices, and media rooms.

For wet areas requiring compliance with NZBC E3 Internal Moisture or E2 External Moisture, Super SAM 125 must be installed in conjunction with a BRANZ‑appraised waterproofing membrane such as Strataflex or the compatible Technokolla Waterproofing & Tiling System.

Key Features
  • 3.18 mm thick, self‑adhering, self‑healing acoustic underlayment and crack isolation membrane.
  • Provides impact and airborne sound reduction with IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile; IIC 56, STC 61 on timber joist systems with tile; and IIC 51, STC 52, ΔIIC 23 on concrete with hardwood.
  • Crack isolation protection for substrate movement up to 9.5 mm, preventing reflective cracking in tile, stone, and hardwood flooring.
  • Reduces moisture vapour transmission (MVT) to 4.54 kg/92.9 m²/24 hrs when used with NAC TAC primer.
  • Compatible with floor finishes including ceramic tile, porcelain tile, natural stone, hardwood, engineered timber, and commercial vinyl.
  • Can be installed over concrete, plywood, cement board, terrazzo, and existing tile substrates.
  • Allows same‑day installation of tile, stone, or other floor coverings for faster project turnaround.
  • Clean Air GOLD certified for low VOC emissions, supporting healthy indoor environments.
  • Light commercial and residential load rating for use in apartments, hotels, classrooms, offices, and media rooms.
  • Must be installed with a BRANZ‑appraised waterproofing membrane (e.g. Strataflex or Technokolla Waterproofing System) in wet areas to meet NZBC E3/E2 requirements.
LBC Declare Red List Free
LBC Declare Red List Free
NZ-Owned Business
NZ-Owned Business
Scope of Use

Super SAM 125 is designed for interior and selected covered exterior flooring applications where both sound control and crack isolation are required under tile, stone, hardwood, engineered timber, or commercial vinyl finishes. It is ideal for use in apartments, multi‑storey residential developments, hotels, classrooms, offices, and media rooms where reduced impact and airborne noise transmission is essential.

The membrane can be installed over stable substrates including in‑situ and precast concrete, plywood, cement board, terrazzo, and existing ceramic tile. It delivers proven acoustic ratings of IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile; IIC 56, STC 61 on timber joist systems with tile; and IIC 51, STC 52, ΔIIC 23 on concrete with hardwood.

Super SAM 125 provides crack isolation protection for lateral substrate movement up to 9.5 mm and moisture vapour transmission (MVT) resistance when used with NAC TAC primer.

It is not a BRANZ‑appraised waterproofing membrane. For wet areas requiring compliance with NZBC Clause E3 Internal Moisture or Clause E2 External Moisture, it must be installed in combination with a compliant waterproofing system such as Strataflex or the Technokolla Waterproofing System.

When installed according to manufacturer’s instructions, Super SAM 125 supports NZBC Clause B2 Durability for long‑term service life and Clause F2 Hazardous Building Materials as it is Clean Air GOLD certified for low VOC emissions.

Limitations on Use
  • Super SAM 125 is not a waterproofing membrane and must not be used as the sole moisture barrier in wet areas. For applications requiring compliance with NZBC Clause E3 Internal Moisture or Clause E2 External Moisture, it must be installed with a BRANZ‑appraised waterproofing membrane such as Strataflex or the Technokolla Waterproofing System.
  • Not suitable for permanent UV exposure, direct weathering, or uncovered exterior installations.
  • Must not be installed over substrates with active structural movement exceeding 9.5 mm or over unstable substrates such as particleboard, unreinforced timber, or dimensionally unstable flooring panels.
  • Substrates must be clean, dry, structurally sound, and free of contaminants including dust, oil, paint, or adhesive residues.
  • Installation requires the use of NAC TAC, NAC TAC II, or NS97 primers to achieve full adhesion and maintain acoustic and crack isolation performance.
  • Not intended for use over expansion joints or structural movement joints; these must be carried through the finished floor covering.
  • Installation must be carried out within the manufacturer’s recommended temperature and environmental conditions to ensure bond integrity and long‑term performance.
Statement of Building Code Compliance

When installed in accordance with NAC installation instructions, Super SAM 125 supports compliance with the following provisions of the New Zealand Building Code (NZBC):

  • NZBC Clause B2 Durability – provides long‑term performance as an acoustic underlayment and crack isolation layer when protected by an appropriate floor finish and used as specified.
  • NZBC Clause F2 Hazardous Building Materials – safe for use in occupied spaces as it is solvent‑free, low VOC, and Clean Air GOLD certified for indoor air quality.

Super SAM 125 meets ANSI A118.12 performance requirements for crack isolation membranes, providing protection against lateral substrate movement up to 9.5 mm, and has been independently tested for high acoustic ratings (IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile; IIC 56, STC 61 on timber joist systems with tile).

It is not a waterproofing membrane and does not satisfy NZBC Clause E3 Internal Moisture or Clause E2 External Moisture requirements on its own. For wet area or external balcony installations requiring these clauses, Super SAM 125 must be used in combination with a BRANZ‑appraised waterproofing system such as Strataflex or the Technokolla Waterproofing System.

In-Service History

Super SAM 125 has been used internationally in projects requiring high‑performance acoustic control and crack isolation beneath tile, stone, hardwood, and other rigid flooring finishes. It has been installed successfully in multi‑residential developments, luxury apartments, hotels, educational facilities, office towers, and media rooms, where reduced impact and airborne noise transmission is essential.

In the New Zealand market, Super SAM 125 is specified in residential and light commercial projects where compliance with acoustic performance criteria is required, such as multi‑storey housing, apartment complexes, and high‑end fit‑outs. It is valued for its ability to deliver both crack isolation for substrate movement up to 9.5 mm and significant sound reduction, with proven laboratory‑tested acoustic ratings including IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile and IIC 56, STC 61 on timber joist systems with tile.

Its Clean Air GOLD certification for low VOC emissions has made it a preferred choice in sensitive environments including healthcare facilities, schools, and aged‑care developments. While it is not a waterproofing membrane, it is frequently used alongside BRANZ‑appraised waterproofing systems such as Strataflex or the Technokolla Waterproofing System in wet area installations.

Other Performance Attributes

Super SAM 125 delivers high acoustic performance, reducing both impact and airborne sound transmission. Independent laboratory testing confirms IIC 51, STC 54, ΔIIC 22 on 150 mm concrete with tile; IIC 56, STC 61 on timber joist systems with tile; and IIC 51, STC 52, ΔIIC 23 on concrete with hardwood floors.

The membrane provides crack isolation for substrate movement up to 9.5 mm, helping prevent reflective cracking in rigid flooring finishes such as tile, stone, hardwood, and engineered timber. It also resists moisture vapour transmission (MVT) when used with NAC TAC primer.

Super SAM 125 is Clean Air GOLD certified for low VOC emissions, making it safe for installation in sensitive environments such as hospitals, schools, and aged‑care facilities. Its self‑adhering, self‑healing composition ensures a continuous bond to the substrate and allows same‑day flooring installation, supporting fast‑track construction schedules.

The product has a light commercial and residential load rating, and is compatible with common substrates including concrete, plywood, cement board, terrazzo, and existing ceramic tile. 

Documents
Indoor Dry Area Tiling: Residential & Commercial Builds

250901

Super SAM 125 Product Data Sheet
Super SAM 125 Product Safety Data Sheet
Super SAM 125 Installation Sheet
NAC Sound Control Solution
CAD/PDF Details
BATHROOM DRAWINGS: SUPERSAM 125

5101-026

Technokolla’s tiling and waterproofing systems offer BRANZ-appraised performance for NZ residential & commercial projects, complying with NZBC, and IWAM best practice; backed by a 15 year warranty.

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