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.
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 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
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
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
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
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
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
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 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
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
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
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
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?
What are the benefits of cavity wall insulation?
Can cavity wall insulation cause damp?
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.