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GO INTERIORS
Distribution Partner to Isover, Superglass, Knauf Insulation, ROCKWOOL, Unilin, IKO, and Kingspan.

External Cavity and Solid Wall Insulation

At GO Interiors, we supply high-performance insulation for external cavity walls, including glass mineral wool, stone mineral wool, and PIR boards. Designed for contractors, developers, and house builders, our range enhances thermal efficiency, soundproofing, and fire resistance, meeting the needs of both new builds and retrofits.

Our products are tailored to help you meet and exceed building regulations for energy efficiency, fire safety, and acoustic performance. With expert technical support and reliable solutions, GO Interiors ensures your projects comply with industry standards while delivering superior results.

Contact us today for technical advice and fast pricing tailored to your project needs.

Cavity Wall Insulation 600 x 600-1

Isover Logo  

Isover Cavity Wall Slab (CWS)

Glass mineral wool slab that provides thermal performance for full and partial fill external masonry cavity walls. 82% recycled.

  • Thickness range: 50, 65, 75, 85, 100, 125, 150 mm
  • Width: 455 mm
  • Length: 1200 mm
  • Thermal conductivity range: 0.032 - 0.036 W/m.K
Isover Timber Frame Roll

Glass mineral wool roll that provides thermal and acoustic insulation benefits in timber frame walls. 82% recycled 

  • Thickness range: 90, 100, and 140 mm
  • Width range: 2 x 570 mm, 3 x 400 mm
  • Length range: 2.7-10.13 m
  • Thermal conductivity range: 0.32 - 0.40 W/m.K
Isover Timber Frame Batt

Glass mineral wool batt that provides thermal insulation in timber frame walls. 82% recycled 

  • Thickness range: 50, 90, 100, 140, and 150 mm
  • Width: 570 mm
  • Length: 1175 mm
  • Thermal conductivity range: 0.32 - 0.40 W/m.K
Isover Steel Frame Infill Batt

Glass mineral wool for thermal and acoustic insulation within the stud framework of lightweight steel frame external walls. 82% recycled

  • Thickness range: 50, 75, and 100 mm 
  • Width 600 mm
  • Length: 1200 mm
  • Thermal conductivity: 0.36 W/m.K
Isover Polterm Max Plus

Stone mineral wool slab with water repellent additive used for thermal and acoustic insulation applications within rainscreen cladding systems.

  • Thickness range: 50, 60, 75, 80, 90, 100, 110, 120, 125, 130, 140, 150, 160, 170, 180, 190, and 200 mm
  • Width: 600 mm
  • Length: 1200 mm
  • Thermal conductivity: 0.35 W/m.K

 superglass logo-2  

Superglass Superwall 32 Cavity Wall Batt

Glass mineral wool insulation cavity wall batt designed to provide thermal insulation in full or partial fill in new external masonry cavity walls.

  • Thickness range: 75-150mm
  • Width: 455mm
  • Length: 1200mm
  • Thermal Conductivity: 0.032W/mK
  • British Board of Agrément (BBA) approved

Datasheet

Superglass Superwall 34 Cavity Wall Batt

Glass mineral wool insulation cavity wall batt designed to provide thermal insulation in full or partial fill in new external masonry cavity walls.

  • Thickness range: 75-150mm
  • Width: 455mm
  • Length: 1200mm
  • Thermal Conductivity: 0.034W/mK
  • British Board of Agrément (BBA) approved
Datasheet
Superglass Superwall 36 Cavity Wall Batt

Glass mineral wool insulation cavity wall batt designed to provide thermal insulation in full or partial fill in new external masonry cavity walls.

  • Thickness range: 75-150mm
  • Width: 455mm
  • Length: 1200mm
  • Thermal Conductivity: 0.036W/mK
  • British Board of Agrément (BBA) approved
Datasheet

  Knauf Insulation

Knauf Insulation DriTherm® Cavity Slab 32

Water-repellent glass mineral wool slab, designed for use in external full-fill masonry cavity walls.

  • Thicknesses: 75, 85, 100, 125, 150mm
  • Widths: 455mm
  • Lengths: 1200mm
  • Thermal conductivity: 0.032 W/mK

Datasheet

Knauf Insulation DriTherm® Cavity Slab 34

Water-repellent glass mineral wool slab, designed for use in external full-fill masonry cavity walls.

  • Thicknesses: 75, 100, 125, 150mm
  • Widths: 455mm
  • Lengths: 1200mm
  • Thermal conductivity: 0.034 W/mK

Datasheet

Knauf Insulation DriTherm® Cavity Slab 37

Water-repellent glass mineral wool slab, designed for use in external full-fill masonry cavity walls.

  • Thicknesses: 50, 65, 75, 85, 100, 125, 150mm
  • Widths: 455mm
  • Lengths: 1200mm
  • Thermal conductivity: 0.037 W/mK

Datasheet

 Unilin Insulation Logo 2

Unilin Thin-R Drylining Walls: Mechanically Fixed XT/TL-MF

PIR insulated panel with foil facing, bonded to 12.5mm tapered plasterboard for internal walls, sloped roofs, and ceilings. Mechanical fixing only.

  • Overall Thicknesses (incl. 12.5mm plasterboard): 37.5mm, 52.5mm, 62.5mm 72.5mm 92.5mm, 112.5mm
  • Width: 1200 mm
  • Length: 2400 mm
  • Thermal conductivity: 0.022 W/mK (PIR only)
Unilin Thin-R Drylining Walls Fixed with Adhesive Dabs XT/TL

PIR insulated panel with kraft facing, bonded to 12.5mm tapered plasterboard for internal use, fixed with adhesive.

  • Overall Thicknesses (incl. 12.5mm plasterboard): 37.5mm, 50.5mm, 62.5mm 72.5mm
  • Width: 1200 mm
  • Length: 2400 mm
  • Thermal conductivity: 0.022 W/mK (PIR only)

Rockwool Logo II

ROCKWOOL NyRock Cavity Slab 032

Masonry cavity wall stone wool insulation designed for full and partial fill applications.

  • Thicknesses: 50, 75, 80, 100, 125, 150, 160, and 200 mm
  • Widths: 455 mm
  • Lengths: 1200 mm
  • Thermal conductivity: 0.032 W/mK

Datasheet

ROCKWOOL Full Fill Cavity Batt

Semi-rigid stone wool insulation solution for masonry cavity wall constructions.

  • Thicknesses: 50, 75, 80, 100, and 150 mm
  • Widths: 455 mm
  • Lengths: 1200 mm
  • Thermal conductivity: 0.037 W/mK

Datasheet

ROCKWOOL High Performance Partial Fill Cavity Slab

Semi-rigid stone wool insulation for masonry cavity wall construction.

  • Thicknesses: 50, 80, 100, 120,150, and 170 mm
  • Widths: 455 mm
  • Lengths: 1200 mm
  • Thermal conductivity: 0.034 W/mK

Datasheet

  IKO-Logo

IKO enertherm ALU CW

Precision-cut PIR insulation for partial fill cavity walls..

  • Thicknesses: 50, 60, 75, and 100 mm
  • Widths: 450 mm
  • Lengths: 1200 mm
  • Thermal conductivity: 0.022 W/m.K

Datasheet

  Kingspan logo

Kingspan Kooltherm K106

Full fill cavity wall PIR insulation solution, with a 10 mm residual cavity

  • Thickness: 90, and 115 mmm
  • Length: 1200 mm
  • Width: 450 mm
  • Thermal Conductivity: 0.019 W/mK
Kingspan Kooltherm K108

Partial fill cavity wall PIR insulation solution.

  • Thicknesses: 40 - 150 mm 
  • Length: 1200 mm
  • Width: 450 mm 
  • Thermal Conductivity: 0.019 W/mK
Kingspan TW50 Thermawall

Partial fill cavity wall PIR insulation.

  • Thicknesses: 40 - 100 mm
  • Length: 1200 mm
  • Height: 450 mm
  • Thermal Conductivity: 0.019 W/mK

Frequently asked questions

Does cavity wall insulation help to achieve Part L of the government building regulations?

Yes, cavity wall insulation is an effective measure to help meet the energy efficiency requirements outlined in Part L of the UK government building regulations for the conservation of fuel and power.

What are the different types of cavity wall insulation?

The main types of cavity wall insulation are glass mineral wool, stone mineral wool, PIR, polystyrene beads, and urea-formaldehyde foam. Each type offers different benefits and is suitable for various applications.

How do you insulate a building if there are no cavities in the walls?

For buildings without cavities, alternative insulation methods include internal wall insulation, which involves adding insulation to the interior walls, or external wall insulation, which involves adding insulation to the exterior walls.

What are the benefits of cavity wall insulation?

Cavity wall insulation helps reduce heat loss, lower energy bills, improve indoor comfort, and decrease carbon emissions. It also provides additional soundproofing.

Can cavity wall insulation cause damp?

Properly installed cavity wall insulation should not cause damp. It’s crucial to have a professional assessment to ensure suitability and correct installation.

How can I get technical assistance or place an order?

You can contact our expert team for technical assistance and to place an order tailored to your specific needs.

Need a quote or technical support?

 

Contact your local depot or alternatively complete the form and a member of our friendly and knowledgeable team will get back to you asap.