Sarking & Sheathing Boards




Grid  List 
  1. Steico Special 1

    Steico Special Dry Wood Fibre Insulation Sarking & Sheathing Board

    Steico Special Dry is a stocked product, but it requires an oversize pallet to transport so is not available to buy online. Please call us for carriage rates.

    To order please call 01793 847 444 or email  info@ecomerchant.co.uk

    Steico Special is a versatile and highly efficient external insulation, water resistant board. U value 0.041W/m2K  Density 140Kg/m3

    For use on roofs and external walls for either new build or renovation projects.

    The board gives multiple benefits

    1. wind-proof layer
    2. T&G Profile
    3. Excellent phase shift - decrement delay - see diagram in product description for values
    4. secondary water resisting layer
    5. additional insulation layer
    6. FSC® chain of custody certified, recyclable 

    Store Steico Special Dry boards lying flat and must be stored in a dry place. Protect edges against damage. Remove packing only when the board is ready to be installed. Ecomerchant can deliver to site on time to minimise storaege and handlig issues.  When ordering please allow 2-3 days for delivery.

    Board Dimensions  1880mm x 600mm.  Tongue and groove profile to all 4 sides.  Coverage per board is approximately 1.06 m2

    Learn More
  2. Steico Universal 1

    Steico Universal Wood Fibre Insulation Sarking & Sheathing Board

    Please Note this stock item requires an oversize pallet to transport so is not available to buy online. Please call us for carriage rates.  To order please call 01793 847 444 or email info@ecomerchant.co.uk

    Steico Universal sheathing board for is for both pitched roof and wall construction.  The board is made from natural wood fibres.  Steico Universal is designed for sheathing timber frame wall panels with stud framing not less than 38 mm in width and at maximum 600mm centres. The boards can resist weather exposure without deterioration during construction or if cladding is delayed.

    U value 0.48W/m2K - Density 270Kg/m3

    • High compressive strength
    • High heat protection during summer months
    • Excellent insulation qualities, prevents thermal bridging
    • Water vapour open, suitable for warm roofs
    • Water resistant due to special rebate on roof pitches ≥ 18°
    • May be fully exposed for up to four weeks in a temporary condition
    • Effective protection against wind, dust, moisture and sound
    • Enhanced vapour transfer
    • Contributes to an excellent room climate
    • Ecologically  and environmentally friendly, recyclable
    • Made of wood fibres, FSC® chain of custody certified

    Board measures 2500mm x 600mm each board covers circa 1.4m2

    Learn More
  3. Durelis VapourBlock Structural Airtight Construction Board With Integral Vapour Barrier 2400mm x 1196mm x 12mm

    Durelis VapourBlock Structural Airtight Construction Board With Integral Vapour Barrier 2400mm x 1196mm x 12mm

    Durelis VapourBlock is a high density ultra low formaldehyde chipboard with a factory fitted transparent airtightness and vapour control layer called TopFinish on one side. This finish guarantees consistent airtightness and vapour control it also eliminates the requirement for additional membranes.

    This board is specifically designed as a more reliable airtightness and vapour control layer compared to conventional plywood or OSB. The board is for internal use, it is classified as a structural board suitable for use in humid conditions (P5) equivalent to OSB3.

    If you want to see how airtight this board is compared to OSB watch the video by clicking on the 'Video' tab below

    VapourBlock vapour barrier has a constant high μ value of 185 (12mm) over the whole surface of the board. This is in contrast to traditional wooden board materials for which the μ value is significantly lower and may vary considerably. 

    The board is extremely airtight (< 0.001³/ m²/h/Pa at 50Pa;12mm) please remember it is important to seal all joints and cracks with a suitable airtight tape.

    Durelis VapourBlock provides

    Ecomerchant FSC Certification

    1. Vapour control,

    2. Structural requirements,

    3. Airtightness

    Price is per board

    NOTE: THIS PRODUCT REQUIRES AN OVERSIZE PALLET SO IS AVAILABLE TO BUY ONLINE PLEASE CALL TO ORDER

      Learn More
    1. Panelvent DHF Structural Vapour Permeable Sheathing Board 13mm 3

      Panelvent DHF Structural Vapour Permeable Sheathing Board 13mm

      Panelvent DHF is a 13mm square edged sheathing board designed to replace OSB and plywood as an external lining board to provide racking and enhanced vapour transfer for timber frame and conventional construction.

      With market leading water vapour resistance values, this board allows the designer the freedom to design breathing structures, free of the risks of interstitial condensation.

      Key Features

      • High Racking Strength
      • Vapour permeable
      • Ultra Low Formaldehyde Emissions
      • Durability under Class 1 and 2 conditions
      • Standard 1200 x 2400 sheet size
      • PEFC certification
      • CE Marked
      • Can be left exposed for up to 6 weeks

      The board is PEFC certified, Panelvent® DHF sheathing has an ultra-low formaldehyde emission of less than 0.03ppm to comply with strict European directives.

      Each board is 1200 x 2400 x 13.0 mm, 50 sheets per pallet, Each board weighs 23.4 kilos

      THIS PRODUCT REQUIRES AN OVERSIZE PALLET TO TRANSPORT SO IS NOT AVAILABLE TO BUY ONLINE. PLEASE CALL US FOR CARRIAGE RATES

      Price is per board. Bulk Discounts apply

      Customer rated

      Learn More
    2. Sarket Weather Resistant Sarking Board 595 x 2420 x 18.0 mm

      Sarket Weather Resistant Sarking Board 595 x 2420 x 18.0 mm

      THIS PRODUCT REQUIRES AN OVERSIZE PALLET TO TRANSPORT SO IS NOT AVAILABLE TO BUY ONLINE. PLEASE CALL US FOR  CARRIAGE RATES

      rrSarket is a high performance bitumen impregnated fibreboard for roofing used as a combined roofing underlay and wind barrier for use on heat-insulated roofs.

      With superior weather resistant skin and tongue & groove edge profile Sarket is perfect for sustainable and breathable roof construction. 

      Using environmentally friendly production methods, Sarket is made from 100% wood waste and the weather resistant skin is made from recycled newspaper.

      Each board measures 595 x 2420 x 18.0 mm, each board weighs 6.91 kg’s there are 100 sheets per pallet

      Price is per board. Bulk discount for orders over 99 boards – see below

      As this is an oversized item please call or email for best delivery price.

      Learn More