Description
The Atlas Basic EWI bundle 50m2 is sized for a wall of about 50 m². It lists the grey graphite boards, adhesive, mesh, plugs, beads, primer and acrylic render for that job on a single order. It is one of our Atlas EWI bundles.
The boards come first: 100 of them in 50 mm grey graphite EPS, 1000 x 500 mm, so 0.5 m² a board. Over them go a layer of Hoter U with mesh, a coat of Cerplast and Atlas Acrylic Render, which is microfibre-reinforced and made to resist dirt and mechanical damage. The render is the white base. Renders World adds the tint in store, to order.
What is in the Atlas Basic EWI bundle 50m2
| Material | Quantity | Job in the wall build |
|---|---|---|
| Grey graphite EPS board, 50 mm, 1000 x 500 mm | 100 | The insulation layer, glued to the wall |
| Atlas Uni-Grunt, 5 kg | 1 | Primer for the bare wall, ahead of the adhesive |
| Aluminium base track, 53 mm, 2.5 m | 3 | Starter track that carries the first row of boards |
| Clip-on profile with mesh and drip nose, 2.5 m | 3 | Clips onto the base track at the foot of the wall |
| Atlas Hoter U grey adhesive, 25 kg bag | 20 | Bonds the boards and forms the reinforced layer |
| Klimas LTX-10 110 mm fixing plug, 200 per pack | 2 packs | Fixes the boards; confirm the length fits |
| Grey EPS plug caps, 100 per pack | 4 packs | Cover the plug heads in the boards |
| PVC corner bead with mesh, 2.5 m | 10 | Forms the outside corners of the wall |
| Atlas 150 fibreglass mesh, 50 m² roll | 1 roll | Reinforces the adhesive layer |
| Cerplast quartz primer, white, 15 kg tub | 1 | Acrylic and quartz primer under the render |
| Atlas Acrylic Render, white, 25 kg tub | 5 | The finish coat |
Adhesive, mesh and primers
- There are 20 bags of Hoter U, each a 25 kg paper bag of microfibre-reinforced adhesive. Atlas rates it at 4.0 to 5.0 kg/m² for bonding boards and at 3.0 to 3.5 kg/m² for the layer that holds the mesh.
- The mesh is a single 50 m² roll of Atlas 150, a 150 g/m² fibreglass.
- The 5 kg tub of Atlas Uni-Grunt goes on the bare wall, where it limits absorption before the adhesive, thermal insulation adhesives included.
- The 15 kg tub of Cerplast, an acrylic and quartz primer, goes on the dry reinforced layer. It helps the render grip, evens out absorbency and makes texturing easier, using 0.3 kg/m² on average and drying within 4 to 6 hours.
Layers in the order they go on
- Uni-Grunt on the bare wall.
- Base track fixed level at the bottom edge, with the clip-on profile snapped onto it.
- Boards glued with Hoter U, working up from the track.
- Plugs through the boards, each head covered by a cap.
- Corner beads set in adhesive on the outside corners.
- Atlas 150 mesh embedded in a reinforced layer of Hoter U.
- A wait of 1 day or more at 20 °C and 50 % humidity.
- Cerplast over the dried layer.
- The acrylic render as the last coat.
The acrylic render finish
Atlas Acrylic Render is made with acrylic resin, microfibres and dolomite fillers. It is resistant to dirt and mechanical damage, not prone to algae, and water-repellent. Five 25 kg plastic tubs come in this bundle, in a lambskin texture.
| Grain | Texture | Consumption by hand |
|---|---|---|
| Texturing aggregate up to 1.5 mm | Lambskin | Below 2.5 kg/m² on average |
The hand-application figure moves with the evenness of the substrate, and spraying uses less. At below 2.5 kg/m², one 25 kg tub therefore covers more than 10 m² by hand (25 kg ÷ 2.5 kg/m² = 10 m²). Atlas recommends a trial on the wall to find the exact use.
The render goes on between +5 °C and +30 °C when humidity is below 80 %. After about 15 minutes it skins, and by about 24 hours at 20 °C and 60 % humidity it has dried. Until then it needs cover from direct sun, wind and rain. All the render on one surface should share a production date, and one method, hand or machine, should do the whole surface, because the two textures are not the same.
Choosing the colour
The range is 406 colours from Atlas, tinted by Renders World in store and made to order. Two points set the limits for this bundle.
- The white base. Whites, creams and light shades are what the white base can be tinted to.
- The adhesive. Atlas wants an HBW above 20 when Hoter U sits in the reinforced layer. HBW is the share of light a colour reflects, with white at 100 and darker colours below it.
So choose a light colour and look up its HBW before you order. The team can help if the number is unclear. A tinted order cannot be returned for a change of mind (14-day returns exclude tinted products), so the colour is worth settling first.
Walls where Atlas suggests a different finish
Atlas advises its silicone render over acrylic in these cases.
- Shaded places
- Near trees and green areas
- Wet or damp ground, and anywhere close to water
- Rural and agricultural land
- Industrial areas
- Outbuildings and livestock buildings on farms
- Industrial warehouses
- Historic buildings
If your wall is one of those, pick another finish before you buy this bundle. Acrylic is also not meant for horizontal surfaces that hold standing water or snow, nor for walls wet from rising damp.
What the bundle does not include
These are bought separately from the Atlas Basic EWI bundle 50m2.
- Tools for mixing, cutting and applying
- The fixings that hold the base track to the wall
- Window sills and sealants
- Any anchors other than the LTX plugs
Ordering, delivery and returns
After you place an order for the Atlas Basic EWI bundle 50m2 the team arranges the delivery with you.
- Dispatch — same day when the goods are in stock.
- Delivery charge — the checkout cannot calculate it. The team contacts you once the order is in, with the method that carries the lowest charge.
- Pallets of up to 1200 kg travel next day, or in 2 business days on the economy option.
- Kerbside only: the goods stay at the kerb, and getting them beyond it is for you to do.
- Collection — the Renders World counter at Unit 9A, Central Trading Estate, SO14 5JP in Southampton; Monday to Friday 7am to 5pm, Saturday 7am to 12pm, closed Sunday.
- Returns — a change of mind is accepted for 14 days if the goods are in original condition. Excluded are goods in paper bags (Hoter U comes that way), tinted products, anything bought in the shop’s 5, 10 or 15 percent promotions, and special orders.
Questions about the bundle
How big a wall is this bundle for?
The Atlas Basic EWI bundle 50m2 is sized for about 50 m². Openings, corners and how thickly each coat goes on will change the real quantities, so measure the wall first.
What if my wall is bigger than 50 m²?
Then you need more material than this bundle holds. Because Atlas asks for one production date of render on one surface, order the render for the whole wall at once and ask the team if that means more than one bundle.
Can I choose the colour of the render?
Within limits. The bundle carries the white base, which is for whites, creams and light shades, and Hoter U in the reinforced layer sets a floor of HBW above 20. Tinted goods are not returnable for a change of mind.
What if my wall is in shade or on damp ground?
Atlas recommends silicone render for such places, and for walls near trees. The section on other finishes lists every case.
What grain is the render?
Lambskin, with aggregate up to 1.5 mm. Atlas lists no other grain for this render.
How long between the mesh layer and the primer?
At least 1 day at 20 °C and 50 % humidity.
Will 110 mm plugs fit my wall?
The bundle includes Klimas LTX-10 plugs in 110 mm. Match that length to your wall on the plug’s product page, or ask the team.
Can I return the bundle?
For a change of mind, yes: within 14 days and in original condition. Hoter U bags, tinted render, promotion goods and special orders are excluded.