Fireproof insulation provides essential protection against heat and flame spread in residential, commercial, and industrial buildings, helping meet UK fire safety regulations.
As a fire-rated material, it helps protect structural integrity while giving occupants vital extra time if a fire occurs.
Fireproof insulation, also known as fire retardant insulation or fire resistant insulation, is built to tolerate high temperatures and limit the rate at which flames spread. It is typically manufactured using non-combustible raw materials such as mineral wool, fibreglass, or specially formulated foams.
Each product is rigorously tested to meet UK and European fire standards. Most achieve a Class A1 or A2 fire rating, meaning they will not ignite, drip, or emit toxic smoke. Thicknesses often range from 25mm to 100mm, with R-values up to 3.0 m²K/W for acoustic and fire resistance.
Fire-resistant insulating material is effective where safety, heat control, and structural protection are essential. It is frequently specified for:
In modern UK construction, fireproof insulation is often paired with rated boards or fireproof expanding foam to create complete fire-safe systems.
We stock a full range of fire rated insulation materials to suit every project:
Benefits of Fireproof Insulation
Built for performance and compliance, fireproof insulation offers lasting safety and comfort. Here’s why it is a preferred choice among UK builders:
Here’s what makes Insulation Wholesale the trusted choice for fire proof insulation in the UK:
Get high-performance fireproof insulation at competitive trade prices. Shop our fireproof insulation boards, slabs, and foams online for fast UK delivery.
Installation depends on the type of insulation. Slabs or boards should be cut to fit snugly between joists or studs, fixed with mechanical fasteners or adhesive, and sealed at joints using fireproof expanding foam or fire-rated mastic.
Follow manufacturer guidelines to get the best results, as installation can vary by product type and application. Always verify local fire safety requirements or consult a building inspector.
Rockwool fireproof insulation is a top performer for most construction applications. The material is non-combustible and easy to handle, and it guarantees thermal and acoustic benefits.
Fireproof insulation boards are also excellent for wall systems and ceilings where rigidity and strength are a necessity.
Typical materials used to make fire resistant insulation are stone or glass wool, fibreglass, ceramic fibres, and fire retardant foam formulations. Each fireproof insulation board is processed to resist ignition and maintain stability at high temperatures.
Standard foam insulation is not entirely fireproof, but you can boost its fire resistance in several ways:
Always check that products are certified for fire resistance before use.
100mm URSA Cavity Batt is a lightweight, semi-rigid glass mineral wool slab treated with silicon-based water repellent. It is suitable for use in both fully and partially filled masonry cavity walls up to 25m high.
