IWI - Wood Wool and Natural Insulation

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IWI - Wood Wool and Natural Insulation

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Tŷ-Mawr’s internal wall insulation systems are also part of our range of LABC registered sustainable building solutions. In addition to their thermal and acoustic performance, their vapour permeability properties helps them to regulate humidity within the building contributing to a more comfortable and healthy living environment. These systems are ideal for the refurbishment of existing solid walls as well as cavity walls. Where internal space is limited or it is not possible to meet building regulations, lime hemp or ecoCork plaster can be applied directly to the walls to add some thermal insulation and assist with air tightness, please contact us for an information sheet.


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 exisitig masonry wall they are applied too. Paint shown is an example for full range of our niternal 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.

Breather Membrane for Walls 1.5m x 16.7m Roll

£31.15 (Excl. VAT)

Thermafleece Welsh CosyWool Rolls per Pack - 100mm x 370mm x 6.5m per Roll (3 rolls and 7.22sqm per pack)

£59.00 (Excl. VAT)

Proclima Intello Plus Membrane 1.5m x 20m Roll

£82.00 (Excl. VAT)

Proclima Tescon VANA Tape - 30m x 6cm Roll

£22.50 (Excl. VAT)

Celenit Wood Wool Boards For Internal and External Walls and Ceilings - 25mm - 0.6m x 2.4m (88boards per oversized pallet)

£13.14 (Excl. VAT)

Washer Fixings per box - 100 washers

£12.00 (Excl. VAT)

REABILITA CAL REBOCO - Render / Tile Bedding/Grouting - 25kg bag - 1.7m2 at 10mm

£8.95 (Excl. VAT)

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

£6.30 (Excl. VAT)

Clay Paint - Feather Pillow - 5 Litres

£56.25 (Excl. VAT)
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Tŷ-Mawr’s internal wall insulation systems are also part of our range of LABC registered sustainable building solutions. In addition to their thermal and acoustic performance, their vapour permeability properties helps them to regulate humidity within the building contributing to a more comfortable and healthy living environment. These systems are ideal for the refurbishment of existing solid walls as well as cavity walls. Where internal space is limited or it is not possible to meet building regulations, lime hemp or ecoCork plaster can be applied directly to the walls to add some thermal insulation and assist with air tightness, please contact us for an information sheet.
Technical Documents
View FileInternal Wall Insulation System - Tech Sheet    Size: (271.93 KB)
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