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Wood fibre insulation sarking board – Beltermo Top

Beltermo Top wood fibre insulation sarking boards are:-

  • a high density, dry-process wood fibre insulation board, brilliant for keeping you warm and dry in winter.
  • great for summer heat shielding, keeping your home cool.
  • ideal for forming a warm roof which is completely vapour permeable.
  • a quick and easy way to form a weather-tight, bat friendly covering without using membranes/felt.  

Prices: from £6.13 + VAT per board

Wood fibre insulation sarking board – Beltermo Top

Beltermo Top wood fibre insulation sarking boards are:-

  • a high density, dry-process wood fibre insulation board, brilliant for keeping you warm and dry in winter.
  • great for summer heat shielding, keeping your home cool.
  • ideal for forming a warm roof which is completely vapour permeable.
  • a quick and easy way to form a weather-tight, bat friendly covering without using membranes/felt.  

Prices: from £6.13 + VAT per board

Close-ups.

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

Image description: This shows the T&G profile on the edge of the Beltermo Top.

Image description: This is a close-up of the surface of the Beltermo Top board showing the texture. 

“One of the most economical ways to get the benefit of really good quality wood fibre insulation into your building project” – Chris Brookman

 

Product overview.

Where is it used?

  • On top of your rafters, preventing thermal bridging and keeping noise out, especially for loft conversions.
  • Behind any cladding on walls on timber frames or masonry.
  • Any roofs where bats live. They get tangled in membranes!!

How do I use it?

  • The Beltermo Top wood fibre insulation sarking boards should be laid on top of the rafters and fixed in place with counter-battens. 
  • For roofing applications the first row should start at eaves level and working in rows, work your way up the roof. 
  • To reduce waste the overhang from the first row should be trimmed off and used to start the second row and so on.
  • For use behind cladding the same principles apply.  When working on masonry structures, unless the wall is very flat, timber battens should be fixed to the surface first with SteicoFlex flexible wood fibre insulation between the battens. The Beltermo Top can then be fixed to these battens, avoiding any voids behind.
  • Any cut joints or corners can be taped with Ampacoll XT tapeto ensure weather-tightness. 
  • 22 and 35mm boards are not suitable for walking directly on unless supported underneath.
  • For installations where the Beltermo Top will be left exposed for more than 4 weeks or where metal roofing is to be used, instal Ampatop Aero breathable membrane over, prior to fixing of the counter-battens.
Technical Details

How much will I need?

  • The 22mm Beltermo Top wood fibre insulation sarking boards cover an area of 2390 x 590mm (1.41m²) and the 35mm Beltermo Top boards cover an area of 2475 x 575mm (1.423m²).
  • Allow 5-10% wastage depending on the complexity of the roof/facade.

What is their thermal conductivity?

  • The Beltermo Top boards have a conductivity of 0.044 W/mK, a density of 200 kg/m³ and a compressive strength of 200kPa (kN/m²)

Suggested Construction Details

Suggested plinth detail – Wood fibre external insulated timber frame – Timber cladding

Suggested Eaves/Roof detail – Wood fibre external insulated timber frame – Timber cladding

Suggested Window Reveal plan detail – Wood fibre external insulated timber frame – Timber cladding

Suggested window reveal section – Wood fibre external insulated timber frame – Timber cladding

 Suggested flat roof detail

Suggested green roof detail

 Suggested eaves detail

 Suggested ventilated ridge detail

 Suggested insulated ridge detail

 Suggested chimney detail

 Suggested roof light detail

 

Product overview.

Where is it used?

  • On top of your rafters, preventing thermal bridging and keeping noise out, especially for loft conversions.
  • Behind any cladding on walls on timber frames or masonry.
  • Any roofs where bats live. They get tangled in membranes!!

How do I use it?

  • The Beltermo Top wood fibre insulation sarking boards should be laid on top of the rafters and fixed in place with counter-battens. 
  • For roofing applications the first row should start at eaves level and working in rows, work your way up the roof. 
  • To reduce waste the overhang from the first row should be trimmed off and used to start the second row and so on.
  • For use behind cladding the same principles apply.  When working on masonry structures, unless the wall is very flat, timber battens should be fixed to the surface first with SteicoFlex flexible wood fibre insulation between the battens. The Beltermo Top can then be fixed to these battens, avoiding any voids behind.
  • Any cut joints or corners can be taped with Ampacoll XT tapeto ensure weather-tightness. 
  • 22 and 35mm boards are not suitable for walking directly on unless supported underneath.
  • For installations where the Beltermo Top will be left exposed for more than 4 weeks or where metal roofing is to be used, instal Ampatop Aero breathable membrane over, prior to fixing of the counter-battens.

How much will I need?

  • The 22mm Beltermo Top wood fibre insulation sarking boards cover an area of 2390 x 590mm (1.41m²) and the 35mm Beltermo Top boards cover an area of 2475 x 575mm (1.423m²).
  • Allow 5-10% wastage depending on the complexity of the roof/facade.

What is their thermal conductivity?

  • The Beltermo Top boards have a conductivity of 0.044 W/mK, a density of 200 kg/m³ and a compressive strength of 200kPa (kN/m²)

Suggested Construction Details

Suggested plinth detail – Wood fibre external insulated timber frame – Timber cladding

Suggested Eaves/Roof detail – Wood fibre external insulated timber frame – Timber cladding

Suggested Window Reveal plan detail – Wood fibre external insulated timber frame – Timber cladding

Suggested window reveal section – Wood fibre external insulated timber frame – Timber cladding

 Suggested flat roof detail

Suggested green roof detail

 Suggested eaves detail

 Suggested ventilated ridge detail

 Suggested insulated ridge detail

 Suggested chimney detail

 Suggested roof light detail

 

Material in action.

Unfortunately we don’t have any photos of this product in use at the moment.

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.

Beltermo Top wood fibre boards cost as per the below individual prices with a discount of 10% on full pallets.

Thickness [mm] Weight [kg/sqm] Board dim. [cm], Area [m²] Number of boards per pallet Pallet covers [sqm] Pallet weight [kg] Pallet dim.
[cm] [LxWxH]
single board cost board in full pallets
22 4.4 238 x 58, 1.38 106 146.28 670 120 x 240 x 135 £6.81 £6.14
35 7.0 247.5 x 57.5, 1.423 66 93.92 680 120 x 250 x 127 £11.06 £9.96

Carriage is typically calculated at £130 + VAT per pallet and all orders will be sent on a pallet. This price does vary if delivery is required to remote locations. We are also able to stack pallets in some cases. 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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