Building Supplies Carryduff, Northern Ireland


Foilboard & Cavity Wall Insulation

Foilboard Insulation

Foilboard Insulation is now the standard insulation required by building regulation. It is a foil-faced Polyisocyanurate (PIR) insulation board.

Foilboard is moisture resistant and has low thermal conductivity minimising thickness required to comply with performance standards.

We stock floor and roof insulation from producers Kingspan and Ballytherm in the following sizes:

  • 8ft x 4ft x 25mm
  • 8ft x 4ft x 50mm
  • 8ft x 4ft x 75mm
  • 8ft x 4ft x 100mm

Cavity wall T&G Insulation is also stocked in 60mm & 100mm packs.

Other thicknesses of insulation can be ordered to suit specific customer requirements.

For more information call us now on 028 9081 3396

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Our opening hours are as follows

Mon-Fri 7.45am - 5pm (Closed for lunch daily 1-1.30pm)

Saturday - 7.45am - 1pm

Contact Us:
Tel : 028 9081 3396
Fax : 028 9081 5225
Email :

Carryduff Building Supplies Ltd.
116 Hillsborough Road
BT23 6AZ