Timber LVL castellated ventilated battens for the modern builder
Highwood produce a range of innovative, structural LVL cavity battens designed to deliver exceptional quality, durability, and versatility.
The castellated cavity and roof battens by Highwood are ideal for residential and multi-residential construction projects by project, custom and passive house or high performing home builders.
Highwood battens are suitable for timber and steel framing. They come in long convenient lengths of 3.6m and, as they are structural, there is no need to cross batten which saves time and material.
Why builders choose Highwood HighFlow
- Peace of mind: HighFlow castellated cavity battens are H3 treated and reduce the risk of mould, rot and expensive callbacks
- Healthier homes: Improved airflow and drainage promote dry walls and healthy interiors thanks to the bevelled top edge and castellated design
- Installation savings: Structural LVL is lightweight, strong and allows for direct fixing and no need for extra nogging – save time, materials and labour
- Code‑ready: Engineered to meet or exceed NCC 2025 ventilation requirements for 2000mm²/m airflow in Climate Zones 6–8
- Versatile cladding compatibility: Works seamlessly with timber, Weathertex, James Hardie, Abodo and other vertical systems
Highwood HighFlow Cavity Batten (70 x 36 mm)
For passive & high‑performance custom home builders
Engineered specifically for high‑performing homes, the HighFlow Cavity Batten (70 × 36 mm) delivers premium moisture control and ventilation, making it the perfect fit for passive homes, timber builds and high-end construction.
Ideal for vertical timber, lightweight and fibre cement claddings, HighFlow helps your builds meet performance targets, improves occupant health, and protects your work long after handover.
Recommended for:
- Passive home builders
- Custom builders focused on airtightness, thermal and moisture performance
- Renovation specialists upgrading older homes to current NCC standards
Compare at a glance
Feature | HighFlow Cavity Batten | HighFlow Project Cavity Batten |
Target Use Case | Custom / high performing / passive / timber homes/ high wind areas | Project / volume housing |
Size | 70 × 36 mm | 50 × 35 mm |
Length | 3.6 m | 3.6 m |
Ventilation Performance | ~2000+ mm²/m | ~2000+ mm²/m |
Structural Support | Yes (direct cladding fixing) | Yes (direct fix cladding up to 20 kg/m²) |
Wind Rating | C4 | N3 |
Cladding Compatibility | Vertical wall cladding by Weathertex, James Hardie, Innova by Etex, Abodo and more | Vertical wall cladding by Weathertex, James Hardie, Innova by Etex, Abodo and more |
Highwood HighFlow Project Cavity Batten (50 x 35 mm)
For project & volume builders wanting smarter wall systems
Looking for a smarter alternative to timber battens or plastic cavity systems? The HighFlow Project Batten (50 × 35 mm) delivers airflow, drainage and compliance in one easy-to-install profile – all at the price and performance point ideal for project home builds. Suitable for vertical claddings up to 20 kg/m² in N3 wind regions.
Project builders can save on labour and materials, all while improving their reputation for building healthy, long‑lasting homes.
Recommended for:
- Project and volume builders
- Affordable housing developers
- Builders needing fast, compliant install solutions
Highwood HighFlow Roof Batten
One-step roof ventilation engineered for efficiency
Meet the HighFlow Roof Batten, a 70 × 45 mm castellated LVL solution that knits together structural support, airflow, and moisture control for modern roofing systems.
Built for:
- Roof ventilation and condensation management to assist in compliance with NCC 2022 Section 10.8.3 standards with 5,000 mm²/m airflow.
Why it matters for builders:
- Eliminates traditional counter battening – can be installed directly over vapour permeable membranes for safer, faster roofing jobs
- Integrated continuous drainage channels rapidly redirect moisture away, reducing condensation, mould risk, and structural decay. This is key for energy‑efficient, high‑performance builds
- Made of high‑strength LVL that is resistant to warping, offering stability and a reliable base for roof fixings
Recommended for:
- High-performing roof builds where safety, speed, and long-term durability are non-negotiable.