STEICOuniversal: The Versatile Rainproof Insulation Solution for All Building Types

Download Free Guide Call Us
steico universal insulation

STEICO Universal Sarking and Sheathing Boards: An Eco-Friendly Insulation Solution

When it comes to insulation, finding a solution that is both effective and environmentally friendly can be a challenge.

That’s where STEICO Universal Sarking and Sheathing Boards come in –

STEICO sarking and sheathing boards are hydrophobic, meaning that they repel water.

The surface tension of rainwater cannot penetrate the sarking boards such as STEICOuniversal dry, but instead runs off the surface.

These panels come with a tightly closing tongue and groove profile, providing a rainproof function and serving as temporary covering.

They are also suitable as temporary covering for several weeks.

made from natural wood fibers, these boards offer excellent insulation properties while being eco-friendly.

One of the standout features of STEICO Universal is that it is produced using wood from sustainably managed forests, certified by the Forest Stewardship Council’s (FSC®) strict guidelines.

This means that the wood used in these boards is harvested in a way that ensures the continued health and growth of the forest ecosystem.

steico Universal

In addition to being environmentally friendly, STEICO Universal also offers a range of impressive properties that make it an excellent choice for insulation.

The boards are produced without additional glues, making them an even more eco-friendly option.

They offer excellent heat protection during the summer months and can reduce thermal bridging, helping to keep your home comfortable year-round.

Features and Benefits of STEICOuniversal

Thermal Performance: STEICOuniversal provides excellent thermal insulation properties, helping to reduce energy costs and keep buildings warm in cold weather.

Moisture Protection: STEICOuniversal is moisture-resistant, preventing the buildup of condensation and mold growth, which can compromise the quality of indoor air.

Fire Resistance: STEICOuniversal is naturally fire-resistant, making it a safe and reliable insulation material.

Sound Absorption: STEICOuniversal also provides excellent sound absorption properties, making it an ideal choice for noise reduction in buildings.

Versatility: STEICOuniversal is suitable for use in various building applications, including walls, roofs, and floors. It can be used in both residential and commercial buildings, as well as new construction and renovation projects.

Sustainability: STEICOuniversal is made from renewable raw materials, including wood fibers that are sourced from sustainably managed forests. It is also free from harmful chemicals, making it a safe and eco-friendly insulation solution.

Ease of Installation: STEICOuniversal is easy to install, requiring minimal tools and expertise. It can be cut to fit any size and shape, allowing for a customized fit in any building application.

The insulating sarking and sheathing board for new builds
• Ecological, produced without additional glues
• Excellent heat protection in Summer
• Reduces thermal bridging
• Can be used with air- injected insulation from 35 mm thick
• For roof pitches ≥ 16°
• May be left exposed for up to 4 weeks during construction
• Sustainable and recyclable like natural wood

steico universal wood fibre insulation

STEICO sarking boards can be laid directly on the rafters without battens, offering robust weather protection.

They fulfill three functions in one go: a windproof layer, a secondary water removal layer, and additional insulation.

Even with thin panels, laying them above the rafters effectively reduces structural thermal bridges.

The top of the rafters is insulated, which significantly reduces the risk of condensation.

In addition, insulation above the rafters provides the roof with a future-proof way of insulation without taking up valuable living space under the roof.

This is especially useful for old building roofs where the rafters are often small, and inter-rafter insulation alone does not provide enough thermal protection that meets modern standards.

Insulation above the rafters also significantly improves sound insulation.


Produced and supervised according to EN 13171, EN 14964
Board designation WF – EN 13171 – T5 – DS (70,-) 2 – CS (10Y)200 –TR30 – WS1,0 – AFr100, EN-14964-IL
Fire class (RTF) according to EN 13501-1 E
Declared thermal conductivity [W/(m*K)] 0,048
Declared thermal resistance [(m²*K)/W] 0,45(22) / 0,70(35) / 1,25(60)
Density [kg/m³] ca. 270
Water vapour diffusion resistance factor µ 5
<P>s<SUB>d</SUB>-value [m]</P> 0,11(22) / 0,18(35) / 0,30(60)
Outdoor exposure bis 4 Wochen
Short-term water absorbtion [kg/m²] ≤ 1,0
Specific heat capacity [J/(kg*K)] 2.100
Compression strength at 10% deformation [N/mm²] 0,20
Compression strength [kPa] 200
Tensile strength perpendicular to face [kPa] ≥ 30
Ingredients wood fibre, aluminium sulphate, paraffin, bond between layers
steicouniversal wood fibre insulation

What’s the best use for Steicouniversal?

Applications of STEICOuniversal

Walls: STEICOuniversal is ideal for insulating walls in both new construction and renovation projects. Its thermal and sound absorption properties help to create a comfortable indoor environment, while its moisture resistance protects the quality of indoor air.

Roofs: STEICOuniversal can also be used to insulate roofs, providing thermal insulation and moisture protection. It can be used in both flat and sloped roofs, making it a versatile solution for various building types.

Floors: STEICOuniversal can be used to insulate floors, providing sound absorption and thermal insulation properties. It can be used in both suspended and solid floors, making it an ideal choice for both residential and commercial buildings.


steico carbon house

What makes Steicouniversal a smart choice?

STEICOuniversal is a versatile insulation solution that provides excellent thermal performance, moisture protection, fire resistance, and sound absorption.

Its versatility makes it an ideal choice for all building types, including residential and commercial buildings, as well as new construction and renovation projects.

With its sustainability, ease of installation, and customizable fit, STEICOuniversal is a cost-effective solution that provides long-term benefits for building owners and occupants.


Thickness [mm]

Length [mm]

Width [mm]

Edge profile

Number/pal. [pcs.]

Area/pal. Gross [m2]

Area/pal. Net [m²]
22 2230 600 T+G 104 139,152 134,761
35 2230 600 T+G 64 85,632 81,144
35 2800 1200 T+G 33 110,880 107,601
35 2800 1250 SE 33 115,500
60 2230 600 T+G 36 48,168 45,644
steicouniversal wood fibre insulation

Why should you choose Steicouniversal?

You may choose Steicouniversal for several reasons, including:

If you’re in the market for sarking and sheathing boards or wall panels for your construction project, you may be wondering why you should choose STEICO Universal over other similar products.

Here are a few reasons why STEICO Universal stands out from the competition:

  1. Environmentally friendly: STEICO Universal is made from natural wood fibers sourced from sustainably managed forests that are certified by the Forest Stewardship Council. This means that not only is the product better for the environment, but you can also feel good about using a sustainable material.

  2. Hydrophobic: STEICO sarking and sheathing boards are water-repellent, which means that rainwater cannot break through the boards and they can serve as temporary covering during construction. The tightly closing, all-round tongue and groove profile offers a rainproofing function, ensuring that your building is protected from the elements.

  3. Excellent heat protection: STEICO Universal offers excellent heat protection during the summer months, making it a great choice for regions with hot climates. It also reduces thermal bridging, which can help you save money on energy costs.

  4. Versatile: STEICO Universal can be used with air-injected insulation from 35mm thick and can be used as a windproof layer, a secondary water removal layer, and additional insulation all in one product.

  5. Easy to install: STEICO Universal can be laid directly on the rafters without battens, providing instant robust weather protection. The tongue and groove profile ensures a tight seal and reduces constructive thermal bridges, even with thin panels.

Overall, STEICO Universal offers a range of benefits that make it an excellent choice for any construction project.

Its environmentally friendly production, hydrophobic properties, excellent heat protection, versatility, and ease of installation make it stand out from other similar products on the market

It’s important to consult a professional engineer or a contractor to determine the best i-joist solution for your specific needs and to ensure that the i-joists are installed correctly.

Call for a quote

Have you got building plans and you’re ready for a Free design quote within 3 to 5 days by one of Steicos BEST trained designers in the UK?

Upload your design to ECO T.E.S today to see how you can build the  dream home you’ve always wanted.