SOFFIT · COLD BRIDGE · CLINICAL · AAC MINERAL

Xella

Multipor Mineral Board 100

£6,200

0.045

λ W/mK · thermal conductivity

100mm

board thickness

A1

non-combustible · any height

What it filters

Goes overhead — designed for soffits, ceilings, and underside-of-slab applications

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LOFT · RAFTER · WALL · DENSE-PACK CELLULOSE

Warmcel

500

£0–£250

0.038

λ W/mK · thermal conductivity

85%

recycled newspaper content

−39dB

acoustic bonus · dense-pack

What it filters

ECO4 grant route · zero-up-front for eligible households (loft is a primary measure)

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CEILING · STUDIO · RESTAURANT · WELLNESS · ARCHITECTURAL ACOUSTIC

Troldtekt

Plus 25 mm

£12,800

0.90

NRC · noise reduction coefficient

A

absorption class · top tier

25mm

panel thickness · Plus grade

What it filters

The visible ceiling and the acoustic treatment — one product, one trade, one install

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MID-RISE · COMMERCIAL · MINERAL WOOL

STO Therm

Mineral K

£62,400

0.036

λ W/mK · thermal conductivity

150mm

typical mid-rise thickness

A1

non-combustible · no height limit

What it filters

Specifiable on buildings above 11 m external wall height without compensating measure

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INTERNAL WALL · AEROGEL LINER

Spacetherm

WL Wall Liner

£18,400

0.015

λ W/mK · industry-lowest

13mm

total system thickness

3–5×

thinner than mineral or wood IWI

What it filters

Preserves cornices, ceiling roses, panelling, architraves, original reveals

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THERMAL BRIDGE · REVEALS

Spacetherm

Aerogel Blanket

£3,800

0.015

λ W/mK · industry lowest

10mm

blanket thickness · standard

~150kg/m³

density · silica matrix

What it filters

Flexible 10 mm — cuts with a knife, wraps services, conforms to curves and reveals

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DETAIL CORRECTION · MID-RISE

Spacetherm

A1

£48,400

0.020

λ W/mK · A1-spec trade-off

A2-s1,d0

limited combustibility · AD B Reg 7(2)

10mm

flexible blanket thickness

What it filters

Aspen Aerogels Spaceloft A2 chemistry · supplied by A. Proctor Group · UK distribution

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BASEMENT & CELLAR · CALCIUM SILICATE

Skamol

SkamoWall Board 50

£9,400

0.068

λ W/mK · thermal conductivity

50mm

board thickness

A1

non-combustible · any height

What it filters

Anti-mould alkaline mineral surface · pH ~10 chemistry, not a coating

100% inorganic · no plastics, no resins, no flame retardant

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INTERNAL WALL · CALCIUM SILICATE

Redstone

Clima Redboard Pro 50

£11,800

0.059

λ W/mK · thermal conductivity

50mm

board thickness

A1

non-combustible · any height

What it filters

A1 fire class · no 11 m height restriction · leasehold-friendly

Anti-mould alkaline surface · pH ~10 · no microbial food

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AIRTIGHTNESS · VAPOUR CONTROL

Pro Clima

Intello Plus

£4,200

>25m

Sd winter · vapour-tight in dry RH

0.25m

Sd summer · vapour-open in humid RH

~85g/m²

membrane weight

What it filters

Intelligent variable Sd — vapour-tight winter (Sd > 25 m), vapour-open summer (Sd 0.25 m)

PHI Passivhaus Institut listed — specifiable into PHPP with audit-ready confidence

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PITCHED ROOF · WARM ROOF

Pavatex

Isolair Multi

£21,800

0.043

λ W/mK · thermal conductivity

160kg/m³

density · summer mass

0.10

summer decrement factor

What it filters

Listed in the Passivhaus Institut component database

FSC Swiss softwood · ~12 kg CO₂/m² stored

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SOLID WALL · WOOD FIBRE

Gutex

Thermowall 140

£28,400

0.040

λ W/mK · thermal conductivity

140mm

board thickness

160kg/m³

density · thermal mass

What it filters

PHI Passivhaus component database listed

FSC-certified European softwood · ~17 kg CO₂/m² stored

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FLOOR INSULATION · HERITAGE RETROFIT

Glapor

foam glass aggregate

£19,800

0.080

λ W/mK · loose-fill conductivity

~150kg/m³

loose-fill density

A1

non-combustible · pure glass

What it filters

100% recycled bottle and flat glass, foamed in Germany since 1985

Limecrete poured directly on top — no membrane, no separation layer

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PLINTH · BELOW-DPC · STRUCTURAL THERMAL BREAK

Foamglas

Perinsul HL

£4,650

0.050

λ W/mK · thermal conductivity

1.6MPa

compressive · STRUCTURAL load

A1

non-combustible · core fire class

What it filters

A1 fire class · vermin-proof · rot-proof · acid-resistant

60% recycled glass content · made in Belgium by Owens Corning

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FLOOR INSULATION · UNDER-SLAB

Foamglas

Floor T3+

£8,400

0.036

λ W/mK · thermal conductivity

600kPa

compressive · structural slab grade

A1

non-combustible · core fire class

What it filters

A1 fire · vermin-proof · rot-proof · acid-resistant

Completes the Foamglas family alongside Perinsul HL at the plinth

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CAVITY WALL · MINERAL FOAM · REVERSIBLE

Cavipor

FTX

£0–£300

0.035

λ W/mK · low conductivity

A2-s1,d0

non-combustible · post-Grenfell

30g/l

density · lightweight fill

What it filters

3-component self-sealing system · fills voids around debris and old beads

ECO4 grant route · zero-up-front install for eligible households

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Insulation + acoustics that let the wall breathe. Every specialist material.

What do you need?

Xella

Warmcel

Troldtekt

STO Therm

Spacetherm

Spacetherm

Spacetherm

Skamol

Redstone

Pro Clima

Pavatex

Gutex

Glapor

Foamglas

Foamglas

Cavipor

Ready for a better building?