Menu
Menu
Filter
Your Cart

Unvented EWI Systems

Explore our selection of Unvented EWI Systems, including  the most popular Insulated Render systems.

Unvented External Wall Insulation Systems (EWI) involve fixing the insulation to the building's exterior,
and the protective, weatherproof finishing layer is then installed straight onto the insulation, forming a continuous barrier with no cavity,
creating a continuous thermal layer that eliminates cold spots and ensures a thermal bridge-free facade

The final weather barrier is provided by a robust, aesthetically pleasing topcoat, such as flexible, thin coat render:
- Silicone
- Acrylic
- Silicate
- Mineral
or with Brick or Stone Slips or Tiles.

Types of insulation used in those systems:

- fire-resistant Rock Wool
- cost-effective EPS Polystyrene (white or grey)
- highly efficient Phenolic 
- water-resistant XPS Polystyrene (usually below DPC level)

 

Choose subcategory or scroll down to see products

9mm Magply Render Carrier Board - 2400mm x 1200mm
Guide Price
Brand: IPP Model and Size: 2400x1200mm - 2.88m2
Delivery Time: 1 - 5 working days
9mm Magply Render Carrier Board is a a high strength, breathable non-combustible board manufactured from MgSO4 and reinforcement meshes used for direct rendering, and has been tested with a variety of render systems by the British Board of Agrement.APPLICATIONExternal and internal direct render..
Guide Price: £39.52
£47.42 inc VAT
Get Best Price
Brand: Rockwool Model and Size: 1000mm x 600mm - 1.80m2
Delivery Time: 5 - 7 days
80mm Rockwool Frontrock Super is a high‑performance, mineral‑wool board designed specifically for external wall insulation (EWI) systems. It combines two distinct density layers in a single panel to deliver both excellent thermal performance and robust structural support. The core of the slab is a l..
Get Best Price
Brand: Ceresit Model and Size: CT177
Delivery Time: 2 - 5 working days
Ceresit CT 177 Mosaic Render is used for applying decorative colourful renders to traditional plasters, concrete substrates, gypsum substrates and chipboards, gypsum cardboards, etc. Transparent resins are the binder and coloured quartz gravels size of 1 - 1.6 mm are the fillers. This material is de..
Get Best Price
Brand: Ceresit Model and Size: 25kg
Delivery Time: In Stock 1-2 working days
Ceresit CT29 Smooth Mineral Exterior Filler and Skim Coat is a high-quality, cement-based exterior filler and skim coat designed for use on mineral-based substrates. It is particularly well-suited for smoothing and levelling uneven surfaces, such as concrete, masonry, and rendered walls, prior to th..
£27.56
£33.07 inc VAT
Add to Cart
Ceresit CT76 Solar Protect Silicone Elastomer Render 1.5mm Grain (stone texture) - 25Kg Ceresit CT76 Solar Protect Silicone Elastomer Render 1.5mm Grain (stone texture) - 25Kg
SALE!
Brand: Ceresit Model and Size: 25kg
Delivery Time: In Stock 1-2 working days
Ceresit CT76 Solar Protect is a high-performance, silicone elastomer-based render designed for use as a facade finish in Ceresit Ceretherm systems for the thermal insulation of external walls. Formulated with a 1.5mm grain size, this render creates a subtle stone-like texture that adds visual intere..
£85.03 (£102.04 inc VAT)
£68.02
£81.62 inc VAT
Add to Cart
Brand: Ceresit Model and Size: 25kg - 0.5 mm grain
Delivery Time: 1-3 working days
Ceresit CT60 is a ready-to-use, polymer-modified acrylic thin layer render for exterior wall applications. It features a BioProtect formula that provides enhanced resistance to the growth of mould, algae and fungus, ensuring a long-lasting, attractive finish. The acrylic-based formulation provides e..
Get Best Price
9mm STS Render Carrier Board - High Performance Construction Board - 1200mm x 800mm 9mm STS Render Carrier Board - High Performance Construction Board - 1200mm x 800mm
Guide Price
Brand: STS Model and Size: 1200x800mm - 0.96m2
Delivery Time: 2 - 4 days
9mm STS Render Carrier Board is a heavy-duty, impact-resistant, dimensionally stable and weatherproof fibre cement construction board that provides a perfect surface to receive a thin coat render systems. Even though its recommend rendering as soon as conditions allow, the STS Render Carrier bo..
Guide Price: £15.55
£18.66 inc VAT
Get Best Price
Ceresit CT85 Flex - Adhesive and Base Coat for Expanded Polystyrene (EPS) Boards - 25kg Ceresit CT85 Flex - Adhesive and Base Coat for Expanded Polystyrene (EPS) Boards - 25kg
SALE!
Brand: Ceresit Model and Size: 25kg
Delivery Time: In Stock 1-2 working days
Ceresit CT85 Flex is a versatile, cementitious adhesive and base coat designed for use with expanded polystyrene (EPS) boards in external thermal insulation composite systems (ETICS). Formulated to provide exceptional adhesion and flexibility, this product plays a crucial role in the Ceresit Cerethe..
£20.31 (£24.37 inc VAT)
£18.89
£22.67 inc VAT
Add to Cart
Brand: Rockwool Model and Size: 1000mm x 600mm - 3.60m2
Delivery Time: 3 - 7 days
50mm Rockwool Frontrock Plus is a semi-rigid thermal and acoustic insulation slab made from volcanic rock, thus extremely durable, fire resistant and specifically created for external wall applications to go directly under render. These slabs are suitable for insulating the outside of masonry, monol..
Get Best Price
Brand: Rockwool Model and Size: 1000mm x 600mm - 2.40m2
Delivery Time: 1 - 2 weeks
50mm Rockwool Ventirock F Super Rainscreen Slab is a dual-density rigid insulation, used where façade safety is important. As it has a higher density, it can be used for walls with increased fire requirements. Thanks to high resistance to water absorption, the problems of wetting during works are mi..
Get Best Price
Brand: Rockwool Model and Size: 1000mm x 600mm - 2.40m2
Delivery Time: 1 - 2 weeks
50mm Rockwool Ventirock Super Rainscreen Slab is a dual-density rigid insulation, used where façade safety is important. As it has a higher density, it can be used for walls with increased fire requirements. Thanks to high resistance to water absorption, the problems of wetting during works are mini..
Get Best Price
Brand: Rockwool Model and Size: 1000mm x 600mm - 4.80m2
Delivery Time: 1 - 2 weeks
50mm Rockwool Ventirock F Plus Rainscreen Slab is a dual-density rigid insulation, used where façade safety is important. As it has a higher density, it can be used for walls with increased fire requirements. Thanks to high resistance to water absorption, the problems of wetting during works are min..
Get Best Price
Brand: Wemico Model and Size: 37929 - 2.6m
Delivery Time: 1 - 2 days
9mm Frameseal Bead with Protecting Lip and Mesh length of 2.6m, article 37929 for plaster thickness 9mm. Made with Rigid PVC with soft PVC and glass fibre mesh...
Get Best Price
Brand: Austrotherm Model and Size: 600mm x 1250mm - 0.75m2
Delivery Time: 3 - 5 days
10mm Roughened XPS 300 Insulation Render Board - Straight Edge - TOP-F P GK is an extruded polystyrene thermal insulation board that is designed for domestic, commercial and industrial applications where a high resistance to compression and water absorption is required. TOP-F P GK extruded poly..
Get Best Price
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-260 Levelling Mortar is a ready-to-use dry mortar which is used to level an uneven surface prior installing a external wall insulation (EWI) system. It can also be used on interior surfaces. EWI-260 consists of Portland cement, mineral fillers and modifying supplements that provide a superior le..
£13.66
£16.39 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-269 Lightweight Basecoat is a breathable and flexible levelling adhesive that can be used internally or externally on lightweight masonry structures and stonework. It consists of grey Portland cement, hydrated lime and perlite, and has a declared thermal efficiency of 0.47W/mK. This basecoat can..
£12.83
£15.40 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 5L
Delivery Time: 2 - 3 working days
EWI-301 Water Based Primer is deep penetrating primer used to prepare walls before installing external wall insulation or render-only systems. EWI-301 limits the absorptive capacity of substrates and also strengthen and stabilise dusty substrates. It helps to enhance adhesion external wall insulatio..
£15.34
£18.41 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 20kg
Delivery Time: 2 - 3 working days
EWI-301 Water Based Primer is EWI-310 Universal Primer is used to prepare substrate surfaces to create an artificial key before applying adhesives. It reduces absorbency and improves adhesion. EWI-310 consists of water-based acrylic polymer dispersions, refining agents, quartz aggregate, pigments an..
£50.62
£60.74 inc VAT
Add to Cart
EWI-225 Premium Adhesive - 25kg bag
Guide Price
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-225 Premium is a very strong and most flexible adhesive used to fix polystyrene and mineral wool panels and also to embed reinforced mesh. It consists of mineral binders, synthetic fibres, mineral fillers and modifying admixtures. It is used in render-only systems as a basecoat, where it elimina..
Guide Price: £16.29
£19.55 inc VAT
Get Best Price
Brand: EWI Pro Model and Size: 7kg
Delivery Time: 2 - 3 working days
EWI-330 Silicone Silicate Primer is a deep-penetrating primer used to prepare substrate surfaces to create an artificial key prior to applying silicone and silicone silicate renders. It is a water-based primer containing acrylic polymers, quartz aggregate, pigments and enhancers and reduces the abso..
£28.60
£34.32 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 100ml
Delivery Time: 2 - 3 working days
100ml EWI-020 Render Accelerator is used to reduce the drying time of Silicone Silicate, Silicone and Acrylic renders, and also accelerates the curing time of textured renders, enabling the faster completion of jobs.CHARACTERISTICSAccelerates the curing process, Faster job completion, Can be used in..
£6.66
£7.99 inc VAT
Add to Cart
EWI-040 Silicone Silicate Render 1mm grain - 25kg Tub - Various Colours
Guide Price
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-040 Silicone Silicate Render is a very flexible, highly breathable and resistant to mechanical impact and UV rays silicone enhanced render that will form a long lasting, aesthetically-pleasing protective barrier on the external surface of your building. EWI-240 Silicone Silicate Render has excel..
Guide Price: £60.97
£73.16 inc VAT
Get Best Price
Brand: EWI Pro Model and Size: 7kg
Delivery Time: 2 - 3 working days
EWI-330 Mineral Acrylic Primer is a deep-penetrating primer used to prepare substrate surfaces to create an artificial key prior to applying mineral, acrylic and mosaic renders. It is a water-based primer containing acrylic polymers, quartz aggregate, pigments and enhancers and reduces the absorptiv..
£25.96
£31.15 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-060 Mineral Render is a breathable and quick-drying, making it ideal for installation in colder, more humid conditions. It is based on Portland cement, texturing aggregate, mineral fillers and hydrated lime and is perfect for external plastering work. EWI-060 mineral render is highly breathable,..
£18.91
£22.69 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-075 Silicone Render is a very flexible, highly breathable and resistant to mechanical impact and UV rays silicone enhanced render that will form a long lasting, aesthetically-pleasing protective barrier on the external surface of your building. EWI-075 Silicone Render has excellent water and fro..
£68.48
£82.18 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 5L
Delivery Time: 2 - 3 working days
EWI-360 Fungicidal Wash can be used internally or externally on a variety of surfaces, such as brickwork, blockwork, stone, wood and plaster and also be used on roof tiles, slates, steel sheets, roofing felt and timber. EWI-360 would kill all micro-organisms, such as algae, mould, mildew and lichen...
£19.08
£22.90 inc VAT
Add to Cart
EWI-010 Acrylic Render - 25kg Tub - Various Colours
Guide Price
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-010 Acrylic Render is a flexible, resistant to mechanical impact render with excellent water and frost resistance good at holding vibrant colours. It will form a long lasting, aesthetically-pleasing protective barrier on the external surface of your building. This Acrylic Render has excellent wa..
Guide Price: £46.90
£56.28 inc VAT
Get Best Price
Brand: EWI Pro Model and Size: 5L
Delivery Time: 2 - 3 working days
EWI-005 Silicone Paint is a professional quality, ready-to-use paint based on silicone resin emulsion and a combination of acrylic binding agents, suitable for interior and exterior surfaces. It provides a water-proof and highly breathable, protective layer, which is resistant to environmental pollu..
£36.60
£43.92 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-050 Mosaic Render is a ready to use decorative render that can be used indoors or outdoors as a thin-layer render coat. It is a highly durable render due to the quartz aggregate grain size of 1.8mm, held within a transparent acrylic resin binder that makes it ideal for exposed surfaces prone to ..
£75.36
£90.43 inc VAT
Add to Cart
Brand: EWI Pro Model and Size: 25kg
Delivery Time: 2 - 3 working days
EWI-220 Basecoat is  specially designed to fix fibreglass mesh reinforced layer for EPS thermal insulation systems. It can also be used for fixing EPS panels to substrates, such as such as concrete, light-aggregate and cellular concrete, ceramic or silicate surfaces. It can be used in fix EPS p..
£16.20
£19.44 inc VAT
Add to Cart
Showing 121 to 150 of 154 (6 Pages)
Filter Products