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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

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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

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    For installation  and technical information please see downloads by clicking on the 'Technical Information'  tab

    Jointing

    The following Pro Clima tapes and glues are ideal for sealing the junctions of VapourBlock board.

    Joints: Uni tape or Tescon no1/ Vana 

    Service penetration: Pro Clima airtightness cable or pipe grommet or Tescon No1 flexible tape.

    Windows and doors: Tescon Profil or Contega SL

    Ceiling to floor: to concrete floor tape DA-S to VapourBlock board with Tescon Vana and bond to concrete floor with Orcon F glue.

    For ceiling injection holes where insulation is blown-in, pro Clima Uni tape patches are available.

    For ceiling corners: Tescon Profil

    Technical summary

    Characteristic

    Unit

    Value

    Thickness EN324-1

    mm

    12mm

    Moisture level EN322

    %

    6-10

    Airtightness at 50Pa EN 13829

    m³/m²/h/Pa

    <0.001

    Thermal insulation value EN 13986

    W/m.K

    0.144

    Sound absorption coefficient EN 13986

    250-500 Hz: 0,10 ; 1000-2000 Hz: 0,25

    Atmospheric sound insulation EN 13986

    dB

    27.4 (18mm)

    Water vapour permeability µ EN iso 12572 (dry cup)

    -

    D-s2, d0

    Reaction to fire EN 13501-1

    Mg/100g

    E1

    Formaldehyde content EN 210

     

     

     

    Characteristic

    Unit

    Vapour Resistance:

    14.7 MNs/g

    Fire Rating

    D-s2

    Thermal Conductivity:

    0.13W/mk

    3rd Party Accreditation:

    CE

    Colour:

    Green with glossy finish

    Sheet Dimensions:

    12mm x 1200mm x 2400mm

    Density:

    720

    Air Permeability (EN 13829) 1/h/m2:

    0.001 (18mm OSB3 = 0.0049)

     

    Technical Characteristics + Norm

    Unit

    5/95 percentile values

    Bending strength EN 310

    N/mm²

    18

    Internal bond EN 319

    N/mm²

    0.45

    Bending stiffness EN 310

    N/mm²

    2550

    Swelling/24h EN 317

    %

    11

    Internal bond after cyclic test EN 321 option 1

    N/mm²

    0.25

    Swelling/24h EN 317

    %

    12

    Up until recently it was generally accepted that taped and sealed 18mm OSB3 was a reliable airtightness layer, with which one could attain the stringent Passivhaus criteria for airtightness of less than 0.6 Air Changes Per Hour at 50 Pascal. Experience on site coupled with a study by the Building Physics Laboratory at the K.U. Leuven showed that OSB boards are not always adequately airtight. It concluded that, if the manufacturer of the panel cannot provide an airtightness guarantee, an allowance must be made for significant air leakage directly through the panels themselves.

    Following from this study the Research and Development team at SpanoTech developed the Durelis VapourBlock board to specifically addresses these issues. When aiming for best practice levels of airtightness, there is no room for compromise. Feedback from contractors on a number of sites identified projects which failed to meet their airtightness requirements due to unforeseen air leakage through OSB, even 18mm thick.  By using Durelis VapourBlock specifiers and contractors can be assured the boards will provide a consistent airtight layer to the highest industrial standards.

    The board is CE marked and production quality is checked daily. Durelis VapourBlock is manufactured under ISO 9001.

    Product Summary

    Material type

    Ecomerchant Chipboard Durelis Spano Vapour Block   Chipboard


    Norm

    Ecomerchant Chipboard Durelis Spano Vapour Block P5  P5 Load-bearing applications 

    Structural

    Ecomerchant Chipboard Durelis Spano Vapour Block Structural  For structural applications

    MR

    Ecomerchant Chipboard Durelis Spano Vapour Block Humid  Use in humid conditions

     

    Vapour diffusion

    Ecomerchant Chipboard Durelis Spano Vapour Block Vapour Diffusion    Vapour barrier

    Treatments

    Ecomerchant Chipboard Durelis Spano Vapour Block TopFinish    Vapour barrier and TopFinish

    SpanoTech VapourBlock has a transparent vapour barrier on one side. Thanks to this technology, board 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. 

    Combined with a TopFinish surface, this ensures that the board is extremely airtight (< 0.001³/ m²/h/Pa at 50Pa;12mm). It is important to always seal all joints and cracks with suitable airtight tape.

    SpanoTech VapourBlock boards can be used in service class 2 (limited temperature and relative humidity), in biological hazard classes 1 and 2 of EN Standard 335-3.

    Airtightness

    Ecomerchant Chipboard Durelis Spano Vapour Block Airtight  Airtight

     

     

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    Installation:  

    When installing Durelis VapourBlock boards, a 4mm expansion gap should be left around the edges of the board. Like all wood based boards, they will expand/shrink under variable humidity conditions, albeit to a lesser extent compared to Standard E1 boards. The board may be installed using either screws, nails or staples.

    Nails or screws should be galvanised, stainless steel or have similarly durable properties. These include wire nails, clout nails, annular ring shank nails and proprietary gun driven nails with a minimum diameter of 2.8mm and a minimum length of 50mm.

    The type, size and spacing of fixings should be confirmed by the panel designer. The perimeter nail spacing should not exceed 150mm, but the spacing of the nails on intermediate studs can usually be increased to 300mm.

    The minimum recommended edge nailing distance is 8mm. It is recommended that boards are fixed in a consistent pattern working outwards from the centre of the board.

    Durelis VapourBlock is suitable for sheathing timber frame wall panels with stud framing not less than 38mm in width and at a maximum of 610mm centres. Suitable sawing, milling and drilling tools should always be used. 

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