Loft Insulation 200MM | Loft Insulation

Welcome to the Loft Insulation 200mm category on Build4Less, where we provide a comprehensive range of high-quality insulation products to meet your specific needs. This category is dedicated to 200mm thick insulation solutions, offering excellent thermal performance and energy efficiency for your loft space.

Product Types and Their Uses

Sheepwool Insulation

100% Sheepwool Insulation Premium Roll (All Sizes) & Sheepwool Loose Wool - 5Kg Pack: Ideal for eco-friendly and sustainable insulation, sheepwool provides natural breathability and moisture control, enhancing the indoor air quality. It's perfect for those seeking a green approach to insulation.

Knauf Loft Insulation Rolls

Knauf OmniFit Roll & Knauf Loft Roll 44 Combi-Cut (All Sizes): These products offer robust thermal insulation with the convenience of combi-cut technology for easy installation. Knauf insulation is renowned for its effectiveness in temperature regulation and soundproofing.

Isover Insulation

Isover Spacesaver Combi-Cut (All Sizes): This product is designed for energy efficiency and space-saving. Its combi-cut feature facilitates installation in various loft spaces, making it a versatile choice for both new and retrofit installations.

Superglass Insulation

Superglass Multiroll 44 (All Sizes): A cost-effective and lightweight option, this glass mineral wool insulation is great for general loft insulation purposes. It provides excellent thermal performance and sound absorption.

ODE Starflex Loft Rolls

ODE Starflex Loft Roll 6000mm x 1200mm x 200mm & ODE Starflex Loft Roll (All Sizes): These rolls are known for their durability and high thermal resistance. They are suitable for both residential and commercial buildings, providing consistent insulation performance.

Specialty Products

Window and Door Filler Untied 200m Roll: Specifically designed to seal gaps around windows and doors, this product enhances the overall insulation efficiency of your loft.

Eco-Economiser Hot Water Cylinder Lagging Jacket - 36" x 18": This is an excellent addition for insulating hot water cylinders, reducing heat loss and saving on energy costs.

Choosing the Right Thermal Insulation

Selecting the appropriate insulation product depends on several factors:

• Environmental Impact: If sustainability is a priority, sheepwool insulation is an excellent choice.
• Installation Ease: Products with combi-cut technology, like those from Knauf and Isover, offer easier installation.
• Budget: Superglass Multiroll provides a cost-effective solution without compromising on quality.
• Specific Use Cases: For specialised areas like windows, doors, or hot water cylinders, choose the dedicated products like the Window and Door Filler or the Lagging Jacket.

Benefits of Loft Insulation Roll 200mm

• Lower energy bills & warmer rooms: A deep top-up dramatically cuts heat escaping through the roof, improving comfort all year.
• Quick win for EPC/SAP goals: Loft top-ups are among the most cost-effective fabric upgrades.
• Acoustic comfort: Mineral wool helps reduce airborne noise through ceilings.
• Moisture-wise: Breathable mineral and natural wools help manage humidity when paired with good ventilation.
• Sustainable choices: Options with high recycled content (mineral wool) or renewable fibres (SheepWool).

Applications of Loft Insulation 200mm

• Top-up in existing lofts: Add 200 mm across joists over an existing between-joist layer to minimise cold bridges.
• New build & refurb cold roofs: Use between-joist + cross-layer to reach target U-values.
• Storage lofts: Combine with raised loft boarding systems so insulation isn’t compressed.
• Eco-projects & low-VOC refurb: Choose natural fibres (e.g., SheepWool) for breathable, renewable insulation.

Installation Tips Loft Insulation 200mm

• Prep the loft: Work in a dry, well-ventilated space. Clear debris, lay crawl boards, and use PPE (gloves, mask, long sleeves, eye protection).
• Layering: Fit/retain the between-joist layer first (don’t over-tighten), then lay 200 mm perpendicular across joists to bridge gaps. Avoid compressing insulation.
• Eaves ventilation: Keep airflow paths open at the eaves; use baffles if needed so insulation doesn’t block vents.
• Services & lighting: Keep clear of recessed downlights unless using fire-rated covers approved for contact with insulation. Keep transformers/drivers accessible and cool.
• Water tanks & pipes: Insulate tanks and pipes well; do not place insulation directly beneath cold water tanks (reduces freezing risk by allowing room warmth up to the tank).
• Loft boarding: Use raised systems so you maintain the full 200 mm depth under storage areas.
• Finish: Seal and insulate the loft hatch to prevent draughts.

Why choose B4L?

• Curated range: Leading brands in one place—Knauf, Isover, Superglass, Volcalis, and natural SheepWool, so you can balance performance, budget, and sustainability.
• Competitive pricing: Strong everyday value with bulk options for larger jobs.
• UK-wide delivery: Reliable fulfilment to home or site.
• Trade-friendly: Helpful support for contractors, plus easy re-ordering for repeat jobs.
• Trusted service: Clear product info, fast checkout, and responsive customer care.