FAQ
Frequently Asked Questions about CycleWool
When choosing an insulation material, many questions often arise — from technical properties and installation to health and environmental aspects.
In our CycleWool FAQ, you’ll find clear and concise answers to the most important topics. This gives you a quick overview and helps you determine whether CycleWool is the right solution for your building project.
What is CycleWool made of?
CycleWool consists of recycled mineral wool, manufactured from residual streams of the mineral wool industry. The EPD describes defined environmental impacts and disposal scenarios. It does not guarantee actual reuse or a closed material cycle.
What should be observed during installation?
CycleWool must be installed according to the manufacturer’s instructions, including the prescribed protective measures for handling mineral wool fibres. The ETA and Declaration of Performance do not establish a blanket claim of health safety for all applications.
What level of thermal insulation does CycleWool achieve?
According to ETA 24/0551, declared thermal conductivity λD is 0.035 W/(m·K) at 30–35 kg/m³ for open applications and 0.034 W/(m·K) at 42–65 kg/m³ in closed cavities. National design rules apply. Potential energy savings depend on the building, insulation thickness, installation and use.
Can CycleWool also be installed later in existing buildings?
Retrofitting is possible in suitable, dry building elements where the insulation does not carry compressive loads. Existing cavities and the required installation openings must be assessed before installation.
How does CycleWool perform in terms of fire protection?
ETA 24/0551 and Declaration of Performance DC01-240551 classify CycleWool as Euroclass A1 (non-combustible). The fire resistance of the complete construction must be assessed separately.
Does the insulation performance change over time?
The working life assumed in ETA 24/0551 is an assessment assumption, not a service-life guarantee. The stated properties require suitable installation and compliance with the intended conditions of use.
Is CycleWool moisture-resistant?
CycleWool is intended for dry building structures. It must be installed dry and protected against prolonged moisture exposure. Moisture protection must be planned for the complete building element.
Are there funding or subsidy options?
Eligibility depends on the specific project and the applicable funding conditions. Using CycleWool alone does not establish entitlement to a grant. Have the requirements checked before starting the work.
For which building elements can CycleWool be used?
ETA 24/0551 describes dry, non-load-bearing insulation applications: open application on nearly horizontal surfaces with a maximum slope of 10°, and suitable closed cavities. The building element, installation density and workmanship must comply with the manufacturer’s instructions.
How does CycleWool affect indoor climate?
Properly designed thermal insulation can reduce winter heat losses and summer heat gains. Indoor temperatures also depend on construction, glazing, shading, ventilation and use. No specific improvement in indoor climate is guaranteed.
