Ecomerchant IWI (Internal Wall Insulation System)




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  1. CSK Insulation fixing screws 1

    CSK Insulation fixing screws (for wood)

    Regular Price: £19.69

    Special Price £6.30

    High quality fixings designed to go into wood and stud work.

    To be used with 60mm hinge capped insulation retaining washer. To be used with woodfibre boards from 60mm - 240mm thick.

    Price is per box of 200 (fixings over 150mm long are 100 per box)

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  2. Insulation retaining washer 60mm hinged cap 1

    Insulation retaining washer 60mm hinged cap (box of 100)

    Regular Price: £15.95

    Special Price £9.95

    Insulation Retaining Washers are used for securing rigid insulation. Using these 60mm diameter washers reduces cold bridging and allows for movement without damaging the surface finish.

    To be used with Insulation fixing screws

    Price is per box of 100

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  3. Insulation Fixings for solid walls 3

    Insulation Fixings for solid walls (box of 200)

    Regular Price: £32.13

    Special Price £29.35

    A universal ISO nylon insulation anchor, which is preassembled allowing quick and easy installation of rigid wood fibre and other insulating boards to masonry, brick, cob, stone etc can be used with insulation thickneses from 20mm - 200mm.

    Drill through insert sleeve, hammer in fixing peg. All plastic construction helps minimise cold bridging Available in a selection of sizes - please see drop down menu above.

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  4. Solo Universal One Coat Plaster 25Kg

    Solo Universal One Coat Plaster 25Kg

    Regular Price: £16.07

    Special Price £15.77

    A universal general purpose high quality single coat plaster for use on a wide range of surfaces including plasterboard, masonry, brickwork, render board.

    Can be applied directly to Steico Therm as internal insulation. Solo is our most popular and bestselling one coat plaster thanks to its high quality and versatility. Also use Solo for small areas, patching and repair it is simple easy and quick.

    Ready reckoner: Allow 1.6kg's of dry plaster per 1mm thickness per square metre.

    Price is per 25kg bag

    Customer Rated

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  5. Steico Therm Internal T&G

    Steico Therm (T&G) Internal - Wood Fibre Insulation Board

    Steico Therm Rigid insulation board T&G edged is made from natural wood fibres. The tongue and groove edge adds the following advantages over the square edge board.

    1. Easier to fix to studs and rafters with an OSB backer board
    2. Quicker and easier to install
    3. Improves airtightness 
    4. Improved joint strength
    5. Less likely to leave gaps when installing

    Steico Therm Rigid insulation board T&G edged is normally used for internal renovations where the structure is built on studs (timber frame or a stud sub frame).  Using the T&G profile for stud applications helps minimise potential cracking of the plaster coat the T&G profile locks the boards together, effectively supporting the joints but the use of an OSB backer board is recommended.

    Like the square edge board Steico Therm T&G is suitable for wall and roof applications it can also be used as sub screed insulation (please ask us for technical guidance for sub screed use)

    Easy and fast fixing wood fibre board with superior insulating properties in both summer and winter. High compressive strength, water vapour open (helps regulate the indoor climate of a building) & fire resistant.

    The board has a light side (machine sanded in the factory) and a darker unsanded side, the lighter side is the plaster carrying face.

    FSC® accredited, ecologically friendly, recyclable.

    1200mm  x 380mm, each board covers 0.434m2

    Price is per board

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  6. Steico Therm 2

    Steico Therm (S/E) Internal - Wood Fibre Insulation Board

    £3.12

    Steico Therm rigid insulation board is made from natural wood fibres and is suitable for wall applications and it can also be used as sub screed insulation (please ask us for technical guidance for sub screed use)

    Easy and fast fixing wood fibre board with superior insulating properties in both summer and winter. High compressive strength, water vapour open (helps regulate the indoor climate of a building) fire resistant.

    FSC® accredited, ecologically friendly, recyclable.

    The board has a light side (machine sanded in the factory) and a darker unsanded side, the lighter side is the plaster carrying face.
    .

    1350mm x 600mm each board covers 0.81m2

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  7. Baumit MC55 Base/Top Coat Plaster/Render, natural white, fibre reinforced mineral  based mortar 25Kg

    Baumit MC55 Base/Top Coat Plaster/Render, natural white, fibre reinforced mineral based mortar 25Kg

    £18.42
    Baumit MC55 W is a highly versatile easy to use, natural white, fibre reinforced mineral based mortar.

    This versatile product and its natruallly sticky nature means that it has excellent adhesion properties on a wide range of substrates and can be used as a base coat for renders, as a reinforcing coat with fibreglass mesh (Baumit Startex),as an adhesive for keying wood fibre boards, as a topcoat finish render or as a remediating topcoat over existing mineral, synthetic or resin based plasters or paintwork. 

    Baumit MC55 W can also be used to prepare smooth concrete, mineral and synthetic renders and some painted surfaces to receive a render.

    When Baumit MultiContact MC 55 W is used as a topcoat finish it must receive a suitable water resistant paint such as Baumit NanoporColour.

    Baumit MC55 W is best mixed, using clean tap water, with a plaster whisk to a smooth lump free consistency or it can be spray applied.

    Yield: 8 m2 at 3 mm  or 5m2 at 5mm or 2.5m2 at 10mm thickness approx. Consumption: 1.0 kg/m2 approx.

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  8. Ecomerchant Internal Wall Insulation System - Wood Fibre Board & Lime Plaster (IWI)

    Ecomerchant Internal Wall Insulation System - Wood Fibre Board & Lime Plaster (IWI)

    £0.00

    Out of stock

    The concept of this is similar to the External system, but as it does not need to be weather resistant it is very much simpler to specify and install. The system uses  Steico Therm   a lighter grade rigid woodfibre insulation board, insulated fixings for timber or masonry, a glass fibre mesh and Lime Green’s Solo one-coat lime plaster

    Please view the individual elements by using this link, or see the main category Insulation/Ecomerchant IWI, or call for pricing and technical assitance.

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