External wall construction

Solid Wall Construction with Aircrete

Discover how H+H aircrete can be used to create thermally efficient solid external walls, providing a streamlined construction solution for modern residential and commercial buildings.

High-performance solid wall construction made simple

What is solid wall construction?

Solid wall construction uses a wall without a cavity. While traditional solid brick walls can be susceptible to moisture penetration and poor thermal performance, modern aircrete systems can provide the performance required for today's buildings.

Combined with suitable insulation and an external finish, aircrete can be used to create high-performance solid walls, including constructions designed to Passivhaus standards.

Why use aircrete for solid walls?

Thermal performance

Aircrete provides inherent thermal performance and can be combined with internal or external insulation to achieve demanding U-values.

Moisture resistance

Aircrete's closed-cell structure provides resistance to moisture, helping support effective external wall construction.

Flexible construction

Celcon Blocks of 200mm width or greater can be used with standard mortar, Thin-Joint construction or H+H Vertical Wall Panels.

High-performance design

Solid aircrete walls can form part of highly energy-efficient building designs, including Passivhaus projects.

Achievable U-Values with aircrete

As low as 0.11 W/m²K

Achievable with appropriate solid wall constructions.

Down to 0.08 W/m²K

Demonstrated in enhanced systems designed to achieve Passivhaus levels of performance.

H+H solutions for solid wall construction

Celcon Blocks

Available in widths of 200mm and above for solid wall construction.

Thin-joint system

Uses 2–3mm mortar joints to support highly airtight solid wall construction.

Thermal performance

Designed for high-performance buildings

Solid aircrete wall construction can achieve high levels of thermal performance when combined with suitable insulation. H+H provides U-value calculations for a range of wall constructions to support specification and design.