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Internal wall insulation – UdiTHERM NF

UdiTHERM NF boards are:-

  • a T&G wood fibre board for internal wall insulation.
  • designed for the safe and simple insulation of masonry walling.
  • in a small format to enable the boards to follow undulating walls.
  • extremely effective at improving comfort and reducing heat loss.

Prices: from £4.27 + VAT per board

Internal wall insulation – UdiTHERM NF

UdiTHERM NF boards are:-

  • a T&G wood fibre board for internal wall insulation.
  • designed for the safe and simple insulation of masonry walling.
  • in a small format to enable the boards to follow undulating walls.
  • extremely effective at improving comfort and reducing heat loss.

Prices: from £4.27 + VAT per board

Close-ups.

Take a closer look at this product with these additional images.

Image description: This shows the T&G profile and thickness of the UdiTHERM NF boards.

Image description: This is a close-up of the surface of the UdiTHERM NF board showing the texture which is well able to hold the lime plasters that come with the system.

“A simple, safe and fast way to insulate the interior of your masonry building” – Chris Brookman

 

Product overview.

Where are they used?

  • As insulation on the interior of any masonry walls.
  • They should only be used above ground as they are not suitable for cellars or basement walls.

How much will you need?

  • The UdiTHERM NF boards are 1186 x 366mm and either 40 or 60mm thick, they cover an area of 0.4134 m² per board. Allow at least 5% for wastage.

 

How are they used?

  • The UdiTHERM boards should have an approximately 5mm layer of Baumit Viton Fein clay plaster or other suitable clay plaster, applied to the rear of the board, which is combed with a thick bed adhesive trowel to allow good bedding on to the wall.
  • Once the boards are in the correct position they can be fixed with 3 masonry fixings, spaced evenly down the long centre line of the board. Do not over-tighten the fixings as this will make aligning the T&G profile with adjacent boards difficult
  • Once the clay backing plaster has stiffened (usually 24 hours later) the UdiMULTIGRUND vapour regulating plaster can be applied to the surface. Apply a 4-5mm coat, incorporating the UdiREINFORCEMENT mesh and finish flat.
  • After 4-5 days the surface can be skimmed with a lime or clay skimming plaster.
Technical Details

Are they heavy?

The wood fibre boards themselves have a density of 160kg/m3 and so weigh around 2.8kg each for the 40mm and 4.2kg for the 60mm. They are easily installed without any specialist lifting equipment.

What is their thermal conductivity?

The thermal conductivity of the UdiTHERM NF boards is 0.038 W/mK, which is equivalent to the SteicoFlex flexible wood fibre insulation.

Can the UdiTHERM NF boards be used on timber studs or a timber frame?

The boards can be used on a timber frame but only over a carrier board such as 12mm OSB or ply. This is because the boards are not rigid enough for use without extra support.

Product overview.

Where are they used?

  • As insulation on the interior of any masonry walls.
  • They should only be used above ground as they are not suitable for cellars or basement walls.

How are they used?

  • The UdiTHERM boards should have an approximately 5mm layer of Baumit Viton Fein clay plaster or other suitable clay plaster, applied to the rear of the board, which is combed with a thick bed adhesive trowel to allow good bedding on to the wall.
  • Once the boards are in the correct position they can be fixed with 3 masonry fixings, spaced evenly down the long centre line of the board. Do not over-tighten the fixings as this will make aligning the T&G profile with adjacent boards difficult
  • Once the clay backing plaster has stiffened (usually 24 hours later) the UdiMULTIGRUND vapour regulating plaster can be applied to the surface. Apply a 4-5mm coat, incorporating the UdiREINFORCEMENT mesh and finish flat.
  • After 4-5 days the surface can be skimmed with a lime or clay skimming plaster.

How much will you need?

  • The UdiTHERM NF boards are 1186 x 366mm and either 40 or 60mm thick, they cover an area of 0.4134 m² per board. Allow at least 5% for wastage.

Are they heavy?

The wood fibre boards themselves have a density of 160kg/m3 and so weigh around 2.8kg each for the 40mm and 4.2kg for the 60mm. They are easily installed without any specialist lifting equipment.

What is their thermal conductivity?

The thermal conductivity of the UdiTHERM NF boards is 0.038 W/mK, which is equivalent to the SteicoFlex flexible wood fibre insulation.

Can the UdiTHERM NF boards be used on timber studs or a timber frame?

The boards can be used on a timber frame but only over a carrier board such as 12mm OSB or ply. This is because the boards are not rigid enough for use without extra support.

Prices & Shipping

Here you will find pricing and shipping estimates. To get a fixed quote, please call our technical team on 01392 861763 or get in touch via the form below.

UdiTHERM NF board prices are as follows, with a discount of 10% on full pallets.

Thickness [mm]Board Sizes [mm]Board coverage [m2]Number of Boards per palletPallet covers [sqm]Single board costBoard cost as a full pallet
401186 x 3660.4348436.46£4.74£4.27
601186 x 3660.4345724.74£6.79£6.11

Carriage is typically calculated at £65 + VAT per pallet and all orders will be sent on a pallet. This price does vary if delivery is required to remote locations. If you require only a few boards we may be able to get slightly cheaper shipping so please contact us for a more accurate price.

Request an estimate.

In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.

Request an estimate.

In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.

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© 2018 Back to Earth