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100mm Steico Flex 036 - 1190 x 375 x 100mm (15 Packs/Pallet) -Wood Fibre Insulation

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(incl VAT) £475.39 £445.12
-10%
(excl VAT) £370.93
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Estimated Delivery Date Jun 19, 2026 - Jun 22, 2026
No deliveries on weekends or holidays.
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Steico Flex 036 - 375mm is a wood fibre insulation batt, made with top-quality wood fibres, sustainably sourced from Coniferous trees. It is a semi-rigid insulation batt that gives superior thermal and acoustic insulation. It can be used to insulate roofs, ceilings, walls, floors and any framed application (like joists and rafters)

With a low thermal conductivity of just about 0.036 W/(m*K), this wood fibre insulation is one of the best insulating materials on the market today. It keeps your home or facility warm, cosy and comfortable, even when it is freezing outside. 

Not just that, with Steico Flex 036 wood fibre insulation, you can expect cooler summers. As they have a high-heat storage capacity, they bounce the heat coming in from the sun and prevent overheating in your home or building 

Steico Flex insulation batts also help soundproof your home. Since these are made of dense wood fibres, they bounce off sound waves giving you quieter indoors. Steico Flex is breathable and allows water vapour to pass through easily which helps avoid condensation issues.

Steico Flex is easy to install and cut. They fit easily in any framed application like joists and rafters, thereby eliminating any gaps or spaces in the application for improved energy savings. Wood fibre insulation can be used to insulate almost any part of your home.  

Steico Flex insulation batts help improve indoor air quality and regulate indoor temperature in summers and winters. Its performance does not deteriorate with time, which means it gives long-lasting energy savings. Furthermore, wood fibre insulation can be recycled which makes it completely environmentally friendly. 
 

Product Specifications:

Length: 1190mm

Width: 375mm

Thickness  Slabs Per Pack Packs Per pallet Coverage Per Pallet (Sq.m)
 40mm 10 18 80.33
50mm 9 15 60.24
60mm 8 15 53.55
80mm 6 15 40.17
100mm 4 15 26.78
120mm 4 15 26.77
140mm 4 12 21.42

Key Features:

  • Made with natural coniferous wood, long-lasting and durable.
  • Their high-heat storage capacity ensures cooler summers.
  • The Low K-Value of these eco-insulation batts helps retain heat indoors.
  • Wood fibre insulation soundproofs walls, roofs and more.
  • They are easy to cut and install. Friction-fitting insulation batts.
  • Wood fibre insulation batts by Steico give you a cleaner, fresher, and healthier home. They are FSC® certified
  • Recyclable, non-irritant and has very low formaldehyde content
     

Applications:

Steico Wood fibre insulation batts - 375mm can be used to insulate:

  • Walls - internal walls, stud walls, party walls, dry external walls etc
  • On roofs they can be used for insulation between joists, rafters can be laid between trusses etc.
  • Steico Flex can be used to insulate cavities on the floor. 
  • They can also be used for insulating service zones.
     

Environment

  • Steico 036 is made using the thinning’s and sawmill residues of coniferous wood that are sustainably and locally sourced.
  • The manufacturing process does not use any conventional formaldehyde or PMDI binders This means that this wood fibre insulation emits a much low quantity of formaldehyde, even below the recommended standards of WHO. 

Note:

  • Lead time for standard sizes (100mm) is 1 week
  • Lead times for non-standard sizes (40mm, 50mm, 60mm, 80mm, 120mm, 140mm) is 6-12 weeks. Please email us for non-standard sizes. 
Order Quantity  Delivery Charge (Excluding VAT)
1 Pallet £75 anywhere in the Mainland UK
Pallet delivery charge of £75 is applied/pallet  

 

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Frequently Asked Questions

FAQs for Steico Flex 036 - 375mm Wood Fibre Insulation
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Steico Flex 036 has a low thermal conductivity (k-value) of about 0.036 W/(m*K), which helps retain heat indoors, leading to improved energy efficiency and lower heating costs.

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Order Quantity  Delivery Charge (Excluding VAT)
1 Pallet £75 anywhere in the Mainland UK
Pallet delivery charge of £75 is applied/pallet  

 

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