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Frequently Asked Questions
What types of floor insulation are available?
There are several types of floor insulation, each designed for different installation methods and performance needs. The most common types of floor insulation include:
- Fibreglass Insulation: This is one of the most popular options for floor insulation due to its excellent thermal performance and affordability. Fibreglass insulation is available in batts, rolls, or loose-fill. It is typically installed between floor joists in timber floors or in underfloor spaces. It provides good heat resistance and soundproofing properties.
- Polystyrene Insulation (Expanded and Extruded):
- Expanded Polystyrene (EPS): Lightweight and cost-effective, EPS boards are used under concrete floors or in spaces with limited moisture concerns. They offer decent thermal resistance and are often used in combination with other materials.
- Extruded Polystyrene (XPS): Denser and more moisture-resistant than EPS, XPS boards are ideal for floors where moisture or dampness is an issue. They are commonly used in basements or ground-level floors.
- Polyurethane Insulation: Polyurethane boards or spray foam provide high thermal resistance with a relatively thin profile. They are often used in areas where space is limited or where high insulation performance is required. Polyurethane is especially beneficial for underfloor insulation in colder climates because it offers great moisture resistance and energy efficiency.
- Mineral Wool Insulation (Rock Wool): Known for its excellent fire resistance, mineral wool insulation can be installed between floor joists. It is also effective for soundproofing and controlling moisture. It’s a popular choice for areas where fire safety is a concern, such as in buildings with timber floors.
- Reflective Foil Insulation: Reflective foil insulation is designed to reflect heat back into a room. This material is typically used as a supplementary insulation solution and works best in conjunction with other materials, particularly in warmer climates where heat reflection is a priority. It can be applied beneath floors to enhance energy efficiency.
- Cellulose Insulation: Made from recycled paper products, cellulose insulation is eco-friendly and is often used for floor insulation in the form of loose-fill or batt-style products. It’s a good option for both soundproofing and thermal efficiency.
- Rubber Insulation: Rubber-based insulation is durable and offers soundproofing as well as thermal benefits. It is commonly used in floors where vibration damping and noise reduction are key, such as in music studios or commercial spaces.
Can floor insulation be installed over an existing floor or underfloor?
Yes, floor insulation can be installed both over an existing floor and underfloor, but the method used will depend on the type of floor and the type of insulation chosen.