Rockwool Rolls | Rockwool Roll | Rockwool Insulation Rolls

Welcome to the Rockwool Roll category at Build4Less, where we offer a range of Rockwool Roll products known for their excellent insulation properties. Rockwool, a leader in the insulation industry, provides products that are essential for effective thermal and acoustic insulation in various building projects.

Types of Rockwool Rolls

Rockwool Twin Roll 100 mm

The Rockwool Twin Roll 100 mm is a versatile insulation solution for both new builds and refurbishment projects. Supplied as a single roll pre-cut into two 50 mm layers, it allows flexible installation in areas where varying thicknesses are required. This dual-layer design makes it easy to fit between loft joists, rafters, or suspended floor systems, delivering excellent thermal and acoustic performance while simplifying handling and cutting on-site.

Rockwool Roll 150 mm

For spaces demanding higher thermal resistance, the Rockwool Roll 150 mm provides enhanced insulation in a convenient standard size. Its extra thickness helps reduce heat loss in attics, roofing voids, and larger cavity walls, ensuring a warmer, more energy-efficient home or commercial building. The dense stone-wool fibres also improve sound absorption and maintain breathability to resist moisture build-up.

Rockwool Roll 170 mm

Engineered for maximum energy savings, the Rockwool Roll 170 mm is ideal where superior thermal efficiency is essential, such as properties in colder climates or projects aiming for top-tier energy ratings. Its greater depth offers outstanding heat retention and excellent acoustic damping, helping to create quieter, more comfortable interiors while meeting the most demanding building regulations.

Rockwool Cladding Roll – All Sizes

The Rockwool Cladding Roll range provides flexible insulation for a variety of external wall and façade systems. Available in multiple sizes to suit different cladding specifications, these rolls combine high thermal performance with exceptional acoustic control and a Euroclass A1 non-combustible rating. Perfect for use beneath metal or timber cladding, they enhance fire safety and energy efficiency in both residential and commercial buildings.

Choosing the Right Rockwool Roll

When selecting a Rockwool Roll, consider the following factors:

• Insulation Thickness: Thicker rolls offer higher insulation values. Choose based on the level of insulation needed for your project.
• Space Constraints: For limited spaces, thinner rolls or the twin roll might be more appropriate.
• Application Area: Consider where the insulation will be applied. Roof and wall insulation may require different thicknesses and types of rolls.
• Acoustic Needs: If sound insulation is a priority, Rockwool's acoustic performance is an important factor to consider.

Key Benefits of Rockwool Insulation Rolls

• Exceptional Thermal Efficiency – Helps reduce heat loss and cut energy bills year-round.
• Class-Leading Fire Resistance – Non-combustible with a Euroclass A1 fire rating for enhanced safety.
• Superior Acoustic Control – Dense structure absorbs sound, creating quieter living and working spaces.
• Moisture & Mould Resistant – Hydrophobic fibres repel water while remaining vapour-permeable.
• Sustainable & Durable – Manufactured from natural stone and recycled materials, with long-lasting performance.

Practical Applications of Rockwool Roll Insulation

• Loft & Attic Insulation – Laid between and over ceiling joists.
• Timber & Metal Stud Walls – Acoustic infill for internal partitions.
• Pitched Roofs & Rafters – Thermal and fire protection beneath roof coverings.
• Floor Systems – Acoustic insulation between timber or concrete floors.

Installation Tips for Rockwool Insulation Roll 

• Wear gloves, a dust mask, and eye protection.
• Cut with a sharp insulation knife on a firm surface for clean edges.
• Fit rolls snugly but without compression to maintain thermal performance.
• For lofts, lay the first layer between joists and a second layer cross-wise to reduce thermal bridging.
• Ensure adequate ventilation and never block eaves.

Why Choose Build4Less?

• Trusted UK Supplier – Stocking leading Rockwool products at competitive prices.
• Fast Nationwide Delivery – Reliable shipping to the site or home.
• Expert Support – Knowledgeable team ready to advise on product choice and installation.
• Bulk Discounts – Save more when you buy for larger projects.
• Sustainability Focus – Partnering with brands committed to recycled and eco-friendly insulation solutions.