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Natural Insulation

Elevate your home's sustainability and comfort with our premium natural insulation solutions.

Crafted from eco-friendly materials, our insulation provides a superior barrier against heat loss, ensuring a cosy atmosphere while reducing energy bills.

With easy-to-use materials and a focus on sustainability, choosing our natural insulation means investing in a greener, quieter, and more comfortable home.

Natural insulation - Ultimate Insulation Supplies
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STEICO Therm dry

Steico

140mm STEICO Therm dry - 600mm x 1350mm - per board

Steico Therm is a multifunctional rigid insulation board made from natural wood fibres. It had a square edge profile and has a light side (machine sanded in the factory) and a darker, untreated side, the lighter side is the plaster carrying face. Certifications: Produced and supervised according to EN 13171Fire class according to EN 13501-1: E
IndiNature IndiLoft Hemp Flexibatt Loft Insulation

IndiNature

IndiNature IndiLoft Hemp Flexibatt Loft Insulation

Light, healthy, soft to touch, carbon negative and vapour breathable loft insulation batts made with natural fibres including UK hemp. IndiLoft® can be friction fit between joists and easy to lay in lofts. Healthy and soft to the touch for installers. Very large carbon savings - net negative embodied carbon. Building occupants will benefit from the exceptional thermal and moisture buffering properties of this sustainable material. It has the added property of low-density heat storage, which means indoor temperatures stay warm in winter and cool in summer. Durability tested.

IndiNature IndiTherm Hemp Flexibatt Insulation

IndiNature

IndiNature IndiTherm Hemp Flexibatt Insulation

A flexible thermal insulation ‘batt’ made from UK crops. IndiTherm® can be friction fit between structural framing or against masonry - with excellent rigidity to resist slumping. Healthy and soft to the touch for installers. Very large carbon savings - net negative embodied carbon. Building occupants will benefit from the exceptional thermal and moisture buffering properties of this sustainable material. It has the added property of low-density heat storage, which means indoor temperatures stay warm in winter and cool in summer. Durability tested.
STEICO Duo Dry

Steico

STEICO Duo Dry

Combined sheathing and renderboard made from natural wood fibres. Designed both as an external sheathing board for timber frame constructions or for direct to masonry applications in external wall insulation systems where the render is applied directly to the board and as an internal plaster carrying board for direct fixing to timber frames without the need for a supporting backer board  
STEICO Flex 036 (Inserts for I-Joists) - 575mm x 1220mm

Steico

STEICO Flex 036 (Inserts for I-Joists) - 575mm x 1220mm

Steico Flex Inserts are a versatile and eco-friendly wood-based insulation batt suitable for on-site cutting for fitment into I Joists. Application: Flexible cavity insulation for infilling I Joists. Certification: Fire Class: E - EN 13501-1Produced and supervised according to EN 13171Board designation: WF – EN 13171 – T3 – TR1 – AFr5 – MU 2

STEICO Flex 036 - 375mm x 1190mm

Steico

STEICO Flex 036 - 375mm x 1190mm

Steico Flex 036 is a versatile and eco-friendly wood-based insulation batt suitable for insulating lofts, floors, walls, ceilings, partition walls, service zones & drywalling providing both thermal and acoustic insulation Certification: Fire Class: E - EN 13501-1Produced and supervised according to EN 13171Board designation: WF – EN 13171 – T3 – TR1 – AFr5 – MU 2

STEICO Flex 036 - 575mm x 1190mm

Steico

STEICO Flex 036 - 575mm x 1190mm

Steico Flex 036 is a versatile and eco-friendly wood-based insulation batt suitable for insulating lofts, floors, walls, ceilings, partition walls, service zones & dry walling providing both thermal and acoustic insulation Certification: Fire Class: E - EN 13501-1Produced and supervised according to EN 13171Board designation: WF – EN 13171 – T3 – TR1 – AFr5 – MU 2

STEICO Protect

Steico

STEICO Protect

Steico Protect  is a natural render/plaster carrying wood fibre insulation board with a tongue and groove profile, designed both as an external sheathing board for timber frame constructions or for direct to masonry applications in external wall insulation systems where the render is applied directly to the board and as an internal plaster carrying board for direct fixing to timber frames without the need for a supporting backer board. It is quite common for architects and designers to specify Protect DRY boards in certain building applications and in combination with a separately specified finish or render system. Certifications: Fire Class: E - EN 13501-1Board designation: WF - EN 13171 - T5 - DS(70,90)3 - CS(10\Y)200 - TR30 - WS1,0 - MU3
STEICO Special Dry - per board

Steico

STEICO Special Dry - per board

Steico special dry is an insulating weatherboarding made from natural wood fibres. Suitable for both sheathing and roofing applications and is ideal for renovation and new build projects.  

STEICO Therm

Steico

STEICO Therm (wet)

Steico Therm is a multifunctional rigid insulation board made from natural wood fibres. It had a square edge profile and has a light side (machine sanded in the factory) and a darker, untreated side, the lighter side is the plaster carrying face. Certifications: Produced and supervised according to EN 13171Fire class according to EN 13501-1: E

STEICO Universal Wet

Steico

STEICO Universal Wet - 600mm x 2230mm

STEICO Universal Wet* is designed for sheathing timber frame wall panels with stud framing not less than 38 mm in width and at maximum 600 mm centres. The boards can resist weather exposure without deterioration during construction or if cladding is delayed. This is a wet production process board. *Wet is the manufacturing process. Certification Produced and supervised according to EN 13171Board designation WF – EN 13171 – T5 – CS(10 \Y)180 – TR25 – WS1,0 – MU3Fire class according to EN 13501-1 EWaste code (EAK) 030105 /170201
STEICO zell Air Injected/Loose Fill Wood Fibre Insulation

Steico

STEICO zell Air Injected/Loose Fill Wood Fibre Insulation - 15kg

Steico zell is environmentally friendly insulation made from natural wood fibres. Can be blown into closed compartments under high pressure and adapts precisely to the boundary surface or alternatively can be poured as loose-fill insulation into floors etc.

Thermafleece CosyWool Sheep Wool

Thermafleece

Thermafleece CosyWool Sheep Wool

Thermafleece CosyWool Roll is a versatile insulation rich in British sheep’s wool and is the ideal choice if you are looking for all round performance and value for money. Research shows that using 75% wool in combination with recycled fibres outperforms alternative products with a higher percentage of wool. Our wool rich blend ensures you get the full benefit of sheep’s wool with enhanced performance, durability and sustainability.
Thermafleece CosyWool Slab

Thermafleece

Thermafleece CosyWool Slab

Thermafleece CosyWool slab is a versatile insulation rich in British sheep's wool. A great choice for insulating walls and roofs. Research shows that using 75% wool in combination with recycled fibres outperforms alternative products with a higher percentage of wool. Our wool rich blend ensures you get the full benefit of sheep’s wool with enhanced performance, breathability, durability and sustainability. Sold per packs
Thermafleece NatraHemp Slab

Thermafleece

Thermafleece NatraHemp Slab

Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation. Thermafleece NatraHemp is a medium density insulation rich in home-grown hemp fibres and is a safe, efficient and durable alternative when plant fibre is the preferred choice.

Thermafleece UltraWool Slab

Thermafleece

Thermafleece UltraWool Slab

Thermafleece UltraWool is a high density highly efficient insulation rich in British sheep’s wool and is the ideal choice if you are looking for maximum thermal performance when space is at a premium. What’s more, with a density of 31 kg/m3 Thermafleece UltraWool helps provide exceptional acoustic insulation performance in wall, floor and roof systems.

Ultimate Insulation Foam Glass Aggregate/Gravel

Ultimate Insulation

Ultimate Insulation Foam Glass Aggregate/Gravel

Ultimate Insulation foam glass is a highly heat-insulating, ecological alternative for insulation to building floors from 99% recycled glass. Certification DIN 4102 (DIN EN 13501-1)DIBT Approval Z – 23.34 – 1579Construction material class A1 and suitable as fire extinguishing agent.