Skip to the page's content

Search

SMARTPLY AIRTIGHT

SMARTPLY AIRTIGHT is a structural OSB/3 panel with an integrated vapour control layer, developed to support airtight construction. Designed for timber frame and offsite systems, it helps reduce air leakage while maintaining reliable structural performance.

Have questions? Speak to our technical team

At a glance

Structural OSB panel with integrated vapour control layer

Combines structural performance with built-in vapour resistance to support airtight building design.

Supports airtight construction

Helps reduce uncontrolled air leakage through wall and roof assemblies when correctly detailed and sealed.

Integrated vapour control layer

Factory-applied layer helps manage air and vapour movement within the building envelope.

Suitable for humid conditions

Manufactured to OSB/3 classification, allowing structural use in humid construction environments.

Consistent structural performance

Engineered using precision-oriented wood strands to provide dependable strength and stability.

Ideal for modern construction methods

Suitable for timber frame, offsite and low energy building systems.

FSC® certified

Manufactured using responsibly sourced wood fibres and available with FSC® certification to support sustainable specification.

As building regulations continue to prioritise energy efficiency, airtightness has become a critical factor in modern construction. Uncontrolled air leakage through the building envelope can significantly reduce thermal performance, leading to increased energy use and reduced occupant comfort.

Creating a well-designed airtight layer helps control the movement of air through walls, roofs and floors, allowing ventilation systems to operate as intended and improving overall building performance.

SMARTPLY AIRTIGHT is developed to support this approach. When installed as part of a properly detailed building envelope, the panel can contribute to an effective airtight layer while maintaining the structural strength required in timber frame and offsite construction systems.

By combining structural performance with airtightness support, SMARTPLY AIRTIGHT helps simplify the design of energy-efficient buildings.

Person's legs visible through opening in wooden floor joists above green subflooring, with orange ladder positioned diagonally.

Specification and sizes

SMARTPLY AIRTIGHT is available in a range of sizes and thicknesses. Other sizes available on request.

Finish Thickness
2397 x 1197mm 12.5mm
2697 x 1197mm 12.5mm
2789 x 1197mm 12.5mm
3000 x 1197mm 12.5mm

Applications

Person's legs visible through opening in wooden floor joists above green subflooring, with orange ladder positioned diagonally.

Airtightness

SMARTPLY AIRTIGHT is developed for use in building envelope applications where controlling air leakage and vapour movement is critical. Its integrated vapour control layer supports the creation of a continuous airtight barrier within modern construction systems.

Airtight Wall and Roof Systems

Suitable for use within wall and roof assemblies where maintaining a continuous airtight layer is essential to building performance.

Integrated Vapour Control Layer

The factory-applied layer helps manage both air and vapour movement, reducing the risk of uncontrolled air leakage and condensation within the structure.

Low Energy and High-Performance Buildings

Ideal for timber frame and offsite construction where airtightness is required to support energy efficiency, thermal performance and occupant comfort.

Have a question?

Get in touch for support from our technical team

Blurred figure walking past beige marble wall with vertical columns and grey pavement below.

Related Products

Downloads

Datasheet

SMARTPLY AIRTIGHT - TECHNICAL DATA SHEET

Download
Technical

AIRTIGHT Installation Guidance

Download
Compliance

SMARTPLY AIRTIGHT - SAFETY DATA SHEET (SDS)

Download
Compliance

SMARTPLY AIRTIGHT EPD

Download
DOPs, CE & UKCA Marks

SMARTPLY AIRTIGHT CE DOP

Download
DOPs, CE & UKCA Marks

SMARTPLY AIRTIGHT UKCA DOP

Download
Compliance

SMARTPLY FSC CERTIFICATE

Download
Compliance

MEDITE SMARTPLY DAC FSC Product Schedule

Download
Compliance

SMARTPLY Europe PEFC Certificate

Download
Compliance

SMARTPLY Europe DAC PEFC Product Schedule

Download
Technical

AIRTIGHT Measurement Report

Download