Wall System 1 (External Wall Insulation System) - Render On Masonry - External Wall Insulation System
Verified by manufacturer 9 months ago
Enviromin mineral finish
Enviromin mineral finish
Direct fix to a suitable masonry wall and can be used with either mineral wool insulation, expanded polystyrene or phenolic insulation depending on the requirements.
Application
Suitable for installation on external solid masonry substrate walls (where masonry includes clay and calcium silicate bricks, concrete blocks and natural and reconstituted stone blocks, concrete or no-fines concrete).
Suitable for use on existing or new, residential and non-residential high-rise buildings up to and over 18 m in height in the United Kingdom (UK).
The System can be designed for a 30 or 60-year service-life durability as required.
Description
A mechanically fixed external wall insulation (EWI) Mineral wool, EPS and Phenolic options available. EPS and Phenolic systems are Euro classification B-s1, d0.
MW insulation in slab form is bonded and mechanically fixed through the glass-fibre reinforced basecoat layer, into the solid masonry wall. The System is completed with one of two available render finishes. Also available with a flexible brick slip finish to re-create a brick appearance with lightweight slips.
Must include a minimum of one stainless steel fixing per/m² of MW insulation, or per insulation batt, whichever is the lesser, fixed through the reinforcing mesh and MW insulation, in addition to the other MW insulation fasteners normally specified.
The System is classified as Euroclass A2-s1, d0 according to BS EN 13501-1.
Features and benefits:
- Extensive range of finishes available.
- Range of insulation options offered.
- Multiple insulation thicknesses available.
General information
Color | White Cream Yellow Blue Grey Manufacturer guidanceAvailable in a range of colours. Refer to manufacturer and insert requirements. |
Finish | Textured Brick Guidance for specification option: Flexible brick slips. Manufacturer guidanceRender, dash, flexible brick slips. |
Warranty description | Ten year 25 year Guidance for specification option: PAS 2035. |
Uniclass | |
CAWS | M21/210 External wall insulation system M21/20 External wall insulation system . . . . . . |
Specification data - External wall insulation systems
System performance | Thermal performance.Moisture control.Fire performance.Strength. |
Preparation | Prior to commencement of work the supporting wall must be finished and free from protrusions and uneven jointing.Guidance for specification option: Prior to commencement of work the supporting wall must be finished and free from protrusions and uneven jointing. The flatness of substrate surfaces must be checked using a straight-edge tool spanning the storey height. Irregularities greater than 10 mm in a 1 m² area, must be made good. Longer fixings may be required in areas that have been levelled to ensure the correct embedment depth is achieved. |
Support rails and brackets | |
Fixing method | |
Material | Lightweight steel frame.Mechanical fixings for MW insulation.Firebreak fixings.High impact mesh.Guidance for specification option: Minimum 370 g/m² . High performance mesh.Guidance for specification option: Minimum 160 g/m². |
Bracket fixings | Manufacturer's standard. |
Boards | |
Material | MW insulation. |
Insulation | |
Material | Rockwool DD slab.Guidance for specification option: 110 kg/m³ average density), to BS EN 13162 λD 0.036 W/mK. Knauf Mono Density.Guidance for specification option: 105 kg/m³ average density, to BS EN 1316 λD 0.036 W/mK2. |
Adhesive | Adhesive bedding. |
Additional mechanical fixings | Sheathing board and project specific.Guidance for specification option: Consult manufacturer for details and insert requirements as required. Fischer LO8 plastic hammer pin.Fischer PN8 plastic hammer pin.Fischer CN8 metal hammer pin.Fischer CS8 metal screw.Ejot H1 Eco plastic hammer pin.Ejot NTU metal hammer pin.Ejot STR U metal screw.Rawlplug KI8 plastic hammer pin.Rawlplug KI10 plastic hammer pin.Rawlplug Tfix 8M metal hammer pin.Rawlplug Tfix 8S metal screw. |
Fire barriers and stops | |
Material | Not required.Guidance for specification option: Mineral wool insulation only. Mineral wool fire break.Guidance for specification option: Expanded polystyrene (EPS) or phenolic insulation only. |
Fixings | Rawlplug R-UCF-A2 Stainless Steel.Stainless steel TKE-4.8* 50-100 mm screws.Rawlplug UCF stainless steel screws.Ejot TKE stainless steel screws.ETID-MR stainless steel fixing. |
Beads and trims | Stop bead with mesh - uPVC.Guidance for specification option: 2.5 m long, including connectors and fixings. Stop bead with mesh - galvanized steel.Guidance for specification option: 2.5 m long, including connectors and fixings. Stop bead with mesh - aluminium.Guidance for specification option: 2.5 m long, including connectors and fixings. Stop bead with mesh - austenitic stainless steel.Guidance for specification option: 2.5 m long, including connectors and fixings. Corner bead with mesh.Guidance for specification option: Plastic, steel or aluminium with uPVC mesh 2.5 m long, including connectors and fixings. Powder-coated aluminium flashings.Guidance for specification option: Powder-coated aluminium flashings - aluminium, for detailing cills and copings. Manufacturer guidanceBeads, trims and profiles - uPVC, aluminium, galvanized steel or austenitic stainless-steel, with mesh as appropriate, and including connectors and fixings. |
Movement joints | |
Form with | Guidance for specification option: Expansion movement joints - aluminium, steel or uPVC and fixings at party wall junctions and existing horizontal expansion joints within the structure. |
Accessories | Sealing tape.Guidance for specification option: Tape 3 - 5 mm thick, to seal joints between copings, cill flashings and underside of window cills as required. Expansion movement joints.Guidance for specification option: Aluminium, steel or uPVC and fixings at party wall junctions and existing horizontal expansion joints within the structure. APU bead profile with mesh.Guidance for specification option: 6 mm wide, 2.4 m long, for window, door and aperture frame sealing. Insect mesh.Guidance for specification option: Plastic with 4 mm drainage holes for fixing with the base beads. Foam filler.Guidance for specification option: Polyurethane foam in spray can. Stop bead with mesh.Insulation base track and connection clip.Corner bead with mesh.Beads, trims and profiles.Powder-coated aluminium flashings. |
Render carrier or reinforcement | |
Material | High polymer modified basecoat with reinforcing mesh. |
Mesh size | 4 x 4 mm.Guidance for specification option: 50 x 1 m rolls. |
Fixings | Manufacturer's standard. |
Render | |
Application | Finish coat.Guidance for specification option: Primer is optional dependent on finish specified; consult manufacturer for details. EnviroSil Top Coat The render should be stirred, and a small amount of water may be added (to a maximum of 2 % by volume) if required. Apply onto the primer coat with a stainless-steel smoothing trowel and float to a thickness of 1.0 - 3.0 mm (thickness determined by grain size) and rub with a plastic float in a circular motion to create the required finish within 5 - 15 minutes after application. A straight edge can be used to help ensure a flat surface, and wet sponges, wooden boards or similar tools can be used to create the desired textured finish. Wipe clean all exposed nosing, cills etc. EnviroMin Mineral Render Top Coat. The render is mixed with between 6.5 to 7.0 litres of cold water. Apply onto the base coat with a stainless-steel smoothing trowel and float to a thickness of 1.0 - 3.0 mm (thickness determined by grain size) and rub with a plastic float in a circular motion to create the required finish within 5 - 15 minutes after application. |
Material | Enviromin mineral finish.Guidance for specification option: High-performance cement-based and polymer modified through-coloured mineral thin coat render. Consult manufacturer for full details. |
Decorative finish | Textured, standard.Manufacturer guidanceApply APU Bead or flexible silicone sealant around windows, window cills and door frames and where the installation abuts any other building or surface to ensure a weather-tight joint. |
Colour | WH89 White.SC75 Cream.SC69 Cream.BL57 Blue.CG56 Grey.LY82 Light Yellow.GR62 Green.Bespoke.Guidance for specification option: Consult manufacturer for options and insert requirements. Manufacturer guidancePastel colours. |
Protective coating | Not required.NanoSil equalizing finish.Guidance for specification option: Not required for some finishes; consult manufacturer for details. |
Sustainability data
Recyclability | EPS and mineral wool recycling from site schemes |
Literature
Wall System 1 Brochure
KIWA BDA Wall System 1 Render on Masonry
KIWA BDA Wall System 1 Flexible Slip on Masonry
Slipfast Mechanical Brick Slip