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Two systems, one goal — the right insulation for every stud wall. Duratite supplies both Enverge spray foam systems for stud wall applications, installed by our approved installer network. The right choice depends on your wall construction, moisture strategy and thermal target.
Breathable, vapour-open spray foam — the ideal solution for timber frame stud walls where moisture management through the wall structure is essential. Excellent acoustic absorption makes it the first choice for residential applications.
Higher thermal performance per millimetre with an integral vapour barrier — the right choice for hybrid walls, solid wall retrofits and thin wall build-ups where space is limited and moisture control is critical.
Both Sucraseal and Nexseal LE can be free-sprayed between open studs directly on site. The installer sprays into the open cavity where the foam expands and conforms around wires, pipes and irregular framing. Once cured, the excess is trimmed flush and the wall is ready for lining.
The ProFill system uses Sucraseal open cell foam injected through a pre-lined VCL membrane into closed timber frame panels. The foam fills the cavity completely with zero trimming required — ideal for factory-built panels and modular construction.
Traditional batt insulation leaves gaps around framing, services and junctions. Spray foam fills the entire cavity, creating a continuous thermal and air barrier.
Fills the entire stud cavity, eliminating the convection loops and air gaps that reduce batt insulation performance. True as-designed thermal performance.
Wires, pipes, junction boxes and irregular framing are seamlessly encased by the expanding foam. No cutting, notching or fitting around obstacles.
Sucraseal’s open cellular structure absorbs airborne noise — ideal for party walls, partitions and loft conversions.
Bonds to timber, masonry, stone, OSB, plywood and metal — one substrate or a combination, the foam adheres on contact.
Choose the right Enverge system for your stud wall application.
| Property | Sucraseal Open Cell | Nexseal LE Closed Cell |
|---|---|---|
| Lambda (W/m·K) | 0.039 | 0.027 |
| Vapour Profile | Vapour-open (breathable) | Integral vapour barrier |
| Best Use | Timber frame, partitions, acoustic | Hybrid walls, solid wall retrofit, SIPs |
| Application Method | Free-spray or ProFill injection | Free-spray only |
| Acoustic Performance | Excellent absorption | Good — reflects more than absorbs |
| Fire Classification | Euroclass E (EN 13501-1) | Euroclass E (EN 13501-1) |
| Substrate Compatibility | Timber, OSB, plywood | Timber, masonry, stone, brick, OSB |
| Declared values (BS EN 14315-1) | Yes | Yes |
Free site survey, system design, professional installation, full documentation.
We assess the stud wall construction, measure cavity depths, review the build-up and recommend the appropriate Enverge system for your project. Free and no-obligation.
We specify the right product (Sucraseal or Nexseal LE), spray thickness, perform U-value calculations and produce a fixed-price quotation for your stud wall project.
Manufacturer-trained technicians spray-apply or inject the foam into your stud wall cavities. The foam expands to fill every gap, conforms around services, and cures in minutes.
You receive thickness verification logs, site photographs, warranty documentation and U-value compliance paperwork for building control sign-off.
High-performance thermal and acoustic insulation within stud partitions — superior acoustic separation between offices, meeting rooms and open plan areas.
The fastest-growing construction method in the UK. Foam between studs provides a seamless airtight layer that rigid batts cannot match — no gaps, settling or compression.
Stud wall infill that bonds to both steel and plasterboard, bridging the junction and eliminating cold bridges that plague traditional methods.
Internal wall insulation using foam between new stud frames fixed to existing masonry — Part L thermal upgrade without altering the external appearance.
Open-cell Sucraseal traps sound energy within stud cavities, outperforming mineral wool batts which settle over time.
Duratite provides stud wall insulation across the UK — call 01208 832 602 for a free survey.
Delivered by our approved installer network.
Full stud wall insulation for a 4-bedroom timber frame new build using Sucraseal open cell. The breathable foam filled every cavity perfectly, with excellent thermal and acoustic performance between rooms. U-value targets achieved first time.
Stud wall and rafter insulation for a loft conversion in a Victorian terrace. Sucraseal sprayed between new stud walls and existing rafters — thermal upgrade plus excellent sound insulation from the adjoining property.
Internal wall insulation on solid stone walls using Nexseal LE closed cell. The foam bonded directly to the stone, providing insulation and an integral vapour barrier — a thin build-up that preserved internal floor area.
The UK’s trusted spray foam insulation specialists — delivering stud wall insulation systems for residential, timber frame and retrofit projects nationwide.
Over a decade delivering professional spray foam insulation for stud walls, timber frame new builds and retrofit projects across the UK.
Commercial projects across the UK including timber frame new builds, loft conversions, retrofits, commercial interiors and residential extensions.
Our approved installer network is directly trained and certified by Enverge to ensure every stud wall installation meets manufacturer specifications.
We supply both Sucraseal open cell and Nexseal LE closed cell — recommending the right system for your specific wall construction and thermal target.
Both Enverge Sucraseal and Nexseal LE performance is declared to BS EN 14315-1 — backed by manufacturer product warranties.
Every project includes thickness verification logs, U-value calculations, warranty documentation and manufacturer datasheets for building control sign-off.
We used Duratite for the stud wall insulation on our new timber frame build. The Sucraseal filled every cavity perfectly and the acoustic performance between rooms is noticeably better than the mineral wool originally specified. Very impressed with the team.
Timber frame self-builderOur loft conversion needed decent sound insulation from the neighbours. Duratite recommended Sucraseal open cell for the party wall and it has made a huge difference. The installation was quick and clean — plasterers were in the next day.
Loft conversion clientWe specified Nexseal LE for the internal wall insulation on a solid stone farmhouse. The foam bonded directly to the stone, provided the vapour barrier we needed, and saved us valuable floor area compared to a traditional battened system. Excellent result.
Farmhouse retrofit architectIndependently certified products — all documentation supplied with your project pack or on request. Call 01208 832 602.
Euroclass B fire rated spray foam for concrete and metal soffits in car parks and industrial buildings.
Learn more →CommercialDistribution centres, cold storage, manufacturing. Full warehouse spray foam insulation systems.
Learn more →AgricultureLivestock buildings, grain stores, poultry houses. Condensation and temperature control.
Learn more →Below GroundSheet piling, retaining walls, basement structures. Nexseal LE closed cell below ground.
Learn more →ModularAirtight thermal envelope for modular and portable buildings.
Learn more →HubExplore all commercial spray foam insulation applications, systems and sectors.
Learn more →Book a free site survey and get expert advice on stud wall insulation for your project — or call us directly on 01208 832 602.
Cavity depths measured, build-up reviewed, the right Enverge system recommended.
Mon–Fri 8am–5pm · 01208 832 602
Tell us about your building and we’ll recommend the right system — foam, waterproofing or both — surveyed, specified and quoted at no cost.
Fire rated spray foam for car park and building soffits.
Moisture resistant insulation for below ground applications.
Reduce heat loss by up to 50% with closed cell spray foam.
Cut energy costs and stop condensation in warehouses.
Airtight thermal envelope for modular and portable buildings.
Explore all commercial spray foam insulation applications.
