Isover Spacesaver

Isover Spacesaver is a fluffy glass-mineral wool insulation roll for loft areas. It is laid between and over loft joists to minimise heat loss through the roof.

What Is Isover Loft Insulation?

Isover Spacesaver is a specialised roll designed for loft insulation. It is designed to sit on the loft floor between and over joists. Wool fibres within the roll trap still air, slowing heat transfer. This improved heat control helps keep the building warm in winter and cooler during hot weather.

What Is Spacesaver Insulation Used For?

Spacesaver Isover loft insulation is mainly used for:

• Loft/attic floors (between joists) – maintaining a stable temperature in the rooms below.
• Cold roof loft spaces or roof-space floors, especially before adding loft boards.
• Suspended timber floors – if there is enough depth between joists and vapour control is addressed.

It is fitted to make homes more energy-efficient and cosy without altering the structural integrity of walls and roof.

Benefits Of Spacesaver Isover Insulation

Installing Isover Space Saver offers these benefits:

• Preserves indoor warmth.
• Lowers heating costs by reducing how often the heating system runs.
• Euroclass A1 reaction to fire – it is non-combustible and does not contribute to fire spread.
• Multiple thicknesses, including Isover Spacesaver 100mm, Isover Spacesaver 150mm, and Isover Spacesaver 200mm.
• Recycled glass composition –manufactured mainly from recycled glass, therefore has a low environmental footprint.

FAQ

Where to buy Isover Space Saver?

You can buy Isover Spacesaver insulation online from Insulation Wholesale. We stock a range of roll thicknesses, making it easy to select the appropriate thickness for your loft. Request a fast quote from our team and enjoy trade-friendly prices, with swift delivery across the UK.

How to cut Spacesaver insulation?

1. First, measure the space (between your loft joists or floor joists).
2. Unroll the Isover Spacesaver, then mark the required length.
3. Using a sharp insulation knife, cut carefully across the marked line.

The roll is soft but fibrous, so wear gloves, eye protection, and a dust mask.

How much is Isover Spacesaver insulation?

Prices depend on thickness and supplier. As a guide, a typical roll of Isover Spacesaver (100mm thick) costs approximately £30–£35 ex-VAT and typically covers 14 m². Thicker rolls cost slightly more because they provide higher insulation performance.