IWI - Schneider Wood-Fibre Insulation System

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IWI - Schneider Wood-Fibre Insulation System

Availability: In stock

Please find details here of Schneider range of boards suitable for Internal surfaces, these boards enable the upgrade of Insulation on both Solid Substrates ie external walls and also beneath Rafters/Joists. 

To speak to us about your project please call us on 01874 611 350 or to be offered a competitive quotation please fill out our calculation form and email it back to tymawr@lime.org.uk

This example is based on achieving a u-value of 0.30 W/m2k or better, i.e. the elemental U - Value requirement from either the Welsh or English Approved Document L1BG, when upgrading the performance of an existing wall with internal or external insulation, although the exact standard that is achieved will depend on the type and thickness of the existing masonry wall they are applied too. Paint shown is an example for a full range of our internal paint ranges click here. For more information please give our technical team a call. 

Every effort has been made to ensure the accuracy of the colour and texture of products on this website but due to the limitations of technology, we strongly recommend that sample products are purchased for testing in situ prior to the full order being placed.

ISOVIT E-CORK (AdhereVit) - NHL based adhesive mortar - 20kg bag - 6m2 at 6mm thick - 60 per pallet

£20.50 (Excl. VAT)

Schneider ROOM 140 PLAIN Edge - 40mm for Internal Wall - (600mm x 1250mm) - per board (60 boards per plus-sized pallet)

£11.45 (Excl. VAT)

160mm Masonry Fixings per box - 200/box

£57.00 (Excl. VAT)

Ty-Mawr Lime - Lime Hemp Plaster - Fine (20kg small bag)

£8.36 (Excl. VAT)

Ty-Mawr Render Mesh 10mm Sq (1m x 50m roll)

£55.00 (Excl. VAT)

Lime Top Coat - SuperFine (Internal Finish) Plaster (25kg small bag)

£8.91 (Excl. VAT)

Clay Paint - White Clay - 5 Litres

£71.30 (Excl. VAT)


Schneider Room 140 - The interior insulation board to plaster over.  Wood as a raw material lends the Room 140 capillary and moisture regulating properties, preventing interior moisture damage, if properly installed. Room 140 also maintains a pleasant, healthy indoor climate.

Schneider Top - is under-rafter insulation for plastered surfaces, for effective roof renovation from the inside. The Top Boards may also be used for improving the thermal protection of walls with ventilated façades.

Please note we can supply all ancillary products for both Internal and External application.

This product can be used in our LABC-registered wall insulation systems - click here for further information. Please contact as if you require a u-value calculation for your project or if you wish to receive a quotation for the full systems build. Telephone 01874 611350 or email tymawr@lime.org.uk.


Technical Documents
View FileIWI - Schneider Wood-Fibre Insulation System - Illustrated Quick Guide    Size: (3.22 MB)
View FileInternal Wall Insulation System - Tech Sheet    Size: (2.82 MB)

Your insulation advantages at a glance

  • Manufactured using a modern dry process
  • Plasterable surface
  • Low thermal conductivityt
  • All-round symmetrical tongue and groove
  • High compressive strength
  • Hydrophobic throughout
  • Vapour permeable
  • Improved flammability classification wiht introduction of the FR boards