Take a deep dive into thermal upgrades to solid walls using natural fibre insulation internally
The façade is the figurehead of a house. The STEICO Building System offers construction variants where every type of façade design can be realised.
Robust STEICO façade insulation boards form a secure, insulating base for the subsequent façade design – whether timber cladding, rendered or a brickwork finish.
All STEICO façade insulation boards are hydrophobic (water-repellent) and at the same time open to diffusion (vapour-permeable). This form of "breathing" construction ensures excellent weather and moisture protection as an additional protective layer behind the façade cladding.
At the same time, STEICO wood fibre insulation boards are extremely stable and therefore optimally protected against mechanical damage from impacts or blows. STEICO façade constructions thus offer maximum safety for many decades.
External thermal insulation composite systems (ETICS) with STEICO wood fibre insulation boards offer natural protection against algae and fungi on the façade. The secret is their particularly high heat storage capacity.
During the day, the insulation boards absorb the heat of the day. Due to their high heat storage capacity, the façade cools down very slowly in the evening. The surface remains warmer than with many conventional insulation materials. In turn, little humidity condenses on warm surfaces. And drier surfaces deprive algae and fungi of the basis for life.
Timber frame construction
In timber frame construction, the compartments between the wall studs are filled with flexible insulating materials, e.g. STEICOflex flexible wood fibre mats or STEICOzell or STEICOfloc air injected insulation. On the outside of the wall, the studs are covered with stable STEICO render boards. These water-repellent wood fibre insulation boards can either be rendered directly or they serve as additional weather protection behind a cladding system.
Solid timber construction
Even a solid wooden wall must be optimally insulated for long-term energy efficiency. The STEICO Building Systems offers two options for this. With the single-layer insulation construction, render boards up to 240 mm thick are fixed directly to the solid wood wall and then rendered. Alternatively, a substructure with STEICO I-joists is attached to the solid wood wall. The resulting compartments are filled with flexible STEICO insulation materials and covered with stable façade insulation boards. This variant is suitable for rendering as well as for a cladding system.
Rewatch Martin Twamley's presentation on natural fibre insulation at the ASBP's Natural Fibre Insulation Summit 2022.
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