UPVC Capping Board (9mm)

From £13.86 *

Price incl. VAT - Delivery cost



  • EUR-1792-1004
  • CB15064
  • Parcel XXL
  • Hardware > Building Materials > Roofing
9mm Capping Board for Timber Fascia or Backboard (Choice of colour and width) Refresh... more
Product information "UPVC Capping Board (9mm)"

9mm Capping Board for Timber Fascia or Backboard

(Choice of colour and width)

Refresh timber fascia and more!

Freshen existing timber fascia and offer long-term protection against the elements with this 9mm PVC-u capping board.

Offers a quick and cost-effective way to enhance a roofline that is in otherwise good condition. Just attach to existing timber fascias or to a new timber backboard for a first-class, long-lasting installation.

It's primary use is as a fascia cover board but this versatile product can also be used for covering internal window cills, lining window reveals and boxing-in pipework.

Features & Benefits

  • Attractive and weather resistant
  • Colour-fast and matched against our other roofline
  • Zero preparation and maintenance free
  • Guaranteed against warping and cracking
  • Easy fit to existing sound fascia board
  • British Standard quality you can trust

Did you know? The wider 350mm and 450mm boards are Double Boards (also known as 'Box End' boards). So they have a lip on the top and bottom edge. This means you can maximise the use of material if both a left and right box end is required.

Why Choose our PVC-u Roofline Products?

Fascias and soffits play a crucial role in protecting the roof space. Neglected timber fascias and soffits can spoil the look of your home and cause expensive damage to your roof rafters.

Our PVC-u fascias, soffits and roof trims come with a 20-year guarantee (10 year for coloured laminated boards) against discolouration, warping and cracking and will give a property a new lease of life.

Technical Information

Thickness 9mm
Length 5m
Width Standard Capping Board: 150mm, 175mm, 200mm, 225mm, 250mm, 300mm
Double Capping Board: 350mm and 450mm
Material PVC-u
Colour White (WH), Black Ash (WY), Anthracite Grey (GY1), Golden Oak (WO) and Rosewood (RO)
Colour Fastness BS1006 / 1990 Part A03 - Tests undertaken by BSI Testing for colour change resulted in an actual classification of 4 / 5 (where 1= most change and 5 = least change).
Fire Rating Foam profiles: Tested to BS476 Part 7:1997 Class 1 surface spread of fire. Woodgrain profiles do not carry a fire rating.
Rigid profiles: Tested to BS476 Part7:1997 Class 1 surface spread of fire.
Thermal Conductivity Foam profiles: 0.07 (w/mk) - this low coefficient of thermal conductivity indicates thermal insulation properties better than brick, concrete or timber.
Rigid profiles: 0.14 (w/mk).
Density Foam profiles: 0.55 - 0.6 g/cm3
Rigid profiles: 1.40 - 1.50 g/cm3
Quality and Standards BS1006 / 1990 Part A03 Grade 4/5 Colour Fastness
BS476 Part 7:1997 Class 1 Fire rating
BS EN 1SO 9001:2000 Quality System
Guarantee Profiles are guaranteed against discolouration, warping and cracking, providing they are fitted to manufacturers recommendations. Standard profiles are covered for 20 years, foiled woodgrain profiles for 10 years.
Applications Capping board for covering tired timber fascia; Internal window cill cover; Lining of window reveal; Boxing-in pipework.

How it's used

Fit directly onto existing timber fascia if they are in good condition. Otherwise, the compromised timber fascia should be removed and replaced with a timber backboard with timber fillets for extra support. The cladding board would then be added to this backboard.

Please consider the following:

  • Foiled and laminated boards should be fitted in lengths of 2.5m maximum to accommodate expansion requirements, particularly in south facing elevations.
  • Abutting boards should be fitted with a 10mm expansion gap and cover trims only stuck to one of the adjoining boards.
  • Normal hand tools can be used for drilling and cutting but we recommended a fine tooth bladed saw.
  • PVC-U products should not be fitted below 0°C as the boards may become brittle.
  • This 9mm capping board should be fixed with 30/40mm polytop fixing pins.

Capping Board as Internal Window Cill Cover

Capping Board is also commonly used as a window cill cover to improve the appearance of damaged timber window board. For this application, the capping board should be cut to size and mitred as necessary and then stuck down with a quick grab adhesive like Saves Nails.


Foam and rigid profiles should not require any further maintenance other than the occasional wash down with a non-scratch, mild detergent and water. They are resistant to most acids and alkalis but can be damaged by solvents. Great care should be taken when in contact with creosote or bitumen-based products as these will cause staining of the profiles. Painting is not recommended on foam profiles unless done by an approved contractor.

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