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Rothoblaas Window Installation — CLT Structure
Description

Rothoblaas offers an integrated system for window installation into Cross Laminated Timber (CLT) structures, focusing on waterproofing, airtightness, thermal and acoustic insulation, and long-term durability. The system comprises a suite of sealing and fixing products designed for external, intermediate, and internal layers of the window perimeter.

The following product types are included:

  • Exterior sealing for weather protection: MS SEAL, FIRE SEALING ACRYLIC, FACADE BAND UV, TERRA BAND UV, FRONT BAND UV 210, PROTECT, BYTUM BAND
  • Central thermal/acoustic sealing around the frame: EXPAND BAND, EXPAND BAND EVO, WINDOW BAND, HERMETIC FOAM, FIRE FOAM
  • Interior airtightness sealing: MS SEAL, FIRE SEALING ACRYLIC, EASY BAND, FLEXI BAND, SEAL BAND, PLASTER BAND IN, SMART BAND

These components provide a comprehensive, multilayer sealing solution tailored to the specific performance demands of CLT construction.

Key Features
  • Comprehensive sealing system tailored for CLT window installations
  • Multilayer approach addressing external weather protection, thermal and acoustic insulation, and interior airtightness
  • Self-expanding tapes adapt to irregular surfaces and seal voids of 6–15 mm
  • Promotes moisture management and protects timber structural integrity
  • High performance in waterproofing, wind-tightness, and airtightness
  • Quick and straightforward installation method
  • Enhances energy efficiency and occupant comfort
Scope of Use
  • Suitable for residential and commercial buildings using CLT construction
  • Ideal for new builds and renovation projects requiring high-performance window sealing
  • Compatible with window positioning options including external flush and internal flush
  • Effective in temperate and standard New Zealand climate zones; additional considerations may be required for extreme climates
Limitations on Use
  • Recommended for CLT structures — use on other structures requires specific compatibility assessment; for use on Masonry or Timber Framing see other listings
  • May require additional detailing in extreme weather conditions or non-standard environments
  • Designed for use by trained professionals in accordance with Rothoblaas technical guidelines
  • Substrate preparation is essential — installation over dirty, wet, or oily surfaces may compromise effectiveness
Statement of Building Code Compliance

Rothoblaas window installation products, if designed, used, installed, and maintained in accordance with the conditions of Rothoblaas’s technical documentation, will comply with, or contribute to compliance with, the following performance provisions of the New Zealand Building Code:

  • B2 Durability: Performance B2.3.1 (b)
  • E2 External Moisture: Performance E2.3.2, E2.3.5
  • F2 Hazardous Building Materials: Performance F2.3.1
  • Clause H1 Energy Efficiency: Performance H1.3.1
  • Compliant with NZS 4211:2008 — Specification for performance of windows
Other Performance Attributes
  • Products support long-term energy efficiency and moisture control
  • Warranty available — terms vary by product, consult Rothoblaas documentation
  • Maintenance includes routine inspection, surface cleaning, and periodic seal assessment
  • Acoustic and thermal sealing products tested to support performance over full joint depth
  • Some products include fire-rated options for added safety compliance
Documents
How to Insulate Windows Against Air and Noise
Data Sheet: Bytum Band
Data Sheet: Easy Band
Data Sheet: Expand Band
Data Sheet: Facade Band UV
Data Sheet: Fire Foam
Data Sheet: Fire Sealing Acrylic
Data Sheet: Flexi Band
Data Sheet: Front Band UV 210
Data Sheet: Hermetic Foam
Data Sheet: MS Seal
Data Sheet: Plaster Band IN | OUT
Data Sheet: Protect
Data Sheet: Seal Band
Data Sheet: Smart Band
Data Sheet: Terra Band UV
Data Sheet: Window Band
Fire Resistance: CLT Joints

Rothoblaas is a global company whose product range encompasses fastening, airtightness, water and soundproofing, fall protection systems, and tools and machines for timber industry professionals.

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