QA Certificate
Certificate type
Mechanically fixed expanded polystyrene (EPS) external wall insulation (EWI) system, which can be installed to create a drained cavity space behind the insulation panels.
Mechanically fixed expanded polystyrene (EPS) external wall insulation (EWI) system which can be installed to create a drained cavity space behind the insulation panels to meet the specific requirements of NHBC, Zurich and other building insurers for external wall insulation application to timber and metal frame constructions in new residential buildings.
The use of tracks to support the insulation enables greater flexibility in overcoming deficiencies in irregular or uneven backgrounds, to achieve very flat surfaces upon completion.
Features and benefits:
Design considerations:
Uniclass 2015 |
Product Reference | PermaRock Track-EPS (Rail) External Wall Insulation Systems |
Building height | Up to 18 m (maximum). Insert requirement. |
Substrate | Cross laminated timber (CLT)Existing brickwork/ blockwork/ concreteNew brickwork/ blockwork/ concreteSFS (Steel frame with sheathing board)SFS (Steel frame with sheathing board and drainage cavity)Structural insulated panels (SIPS)Timber frame with sheathing board |
Preparation | Not requiredPermaRock Fungicidal WashConsult manufacturer for details. |
Movement joints | Not requiredRequiredLocate as per project drawings. |
Fire breaks | Non-combustible (mineral fibre)Required horizontally at each floor level commencing at second floor level and at each floor level thereafter. |
Cavity fire barrier | Not requiredRequiredVertical and/ or horizontal fire barrier (mineral fibre insulation) may be required on some buildings. Consult with PermaRock for recommendations. |
Insulation | - |
Type | PermaRock Track-EPS Insulation (EPS70) |
Thickness | See 'Options' below and insert requirements. |
Mechanical fixings | Horizontal and vertical intermediate PVC tracksHorizontal and vertical intermediate PVC tracks (with supplementary fixings through each insulation board)For extra support. Horizontal intermediate PVC tracks with vertical T-splines |
Reinforcement layer (render carrier) | - |
Basecoat | PermaRock Bedding MortarFor Silicone ULTRA K-Finish and R-Finish/ Acrylic K-Finish and R-Finish/ Mineral K-Finish and R-Finish/ brick slips. |
Basecoat (sponge float finish) | Not requiredPermaRock Bedding MortarFor Silicone ULTRA K-Finish and R-Finish/ Acrylic K-Finish and R-Finish/ Mineral K-Finish and R-Finish/ brick slips. |
Mesh reinforcement | PermaRock Armoured MeshFor areas requiring higher level of impact resistance. PermaRock Reinforcing Mesh |
Mesh (corner) patches | PermaRock Reinforcing Mesh500 x 250 mm patches incorporated into PermaRock Bedding Mortar at corners of all structural openings and level changes (steps). |
Corner reinforcement | PermaRock Corner Reinforcement Angles COR/PL/M |
Render/ Finish | - |
Primer | Not applicablePermaRock K&R PrimerFor Silicone ULTRA K-Finish and R-Finish/ Acrylic K-Finish and R-Finish/ / Brick slips. |
Top (finish) coat | - |
Type | PermaRock Acrylic K-Finish stippled renderPermaRock Acrylic R-Finish corrugated renderPermaRock Brick Slip Adhesive/ Brick Slips/ Brick Slip Pointing MortarPermaRock Mineral K-Finish stippled renderPermaRock Mineral R-Finish corrugated renderPermaRock Silicone ULTRA K-Finish stippled renderPermaRock Silicone ULTRA R-Finish corrugated render |
Grain size | Not applicableAll types other than K or R finishes. K 1.5 mmFor Silicone ULTRA/ Acrylic K-Finishes only. K 2.0 mmFor Silicone ULTRA/ Acrylic/ Mineral K-Finishes only. K 3.0 mmFor Silicone ULTRA/ Acrylic/ Mineral K-Finishes only. K 5.0 mmFor Mineral K-Finishes only. R 2.0 mmFor Silicone ULTRA/ Acrylic R-Finishes only. R 3.0 mmFor Silicone ULTRA/ Acrylic/ Mineral R-Finishes only. R 5.0 mmFor Silicone ULTRA/ Acrylic/ Mineral R-Finishes only. |
Equalizing coating/ Paint | NonePermaRock Silicone ULTRA Facade CoatingSelf-cleaning facade paint with nano-quartz matrix structure. For use with K-Finish/ R-Finish renders with lightness factor < 20. |
Accessories | Extensive range available; consult manufacturer and insert requirements. |
Additional requirements | NoneAs drawingSee 'Options' below and insert requirements. |
Product Options | Preparation: Consult manufacturer for details of preparation to suit project substrates. Use PermaRock Fungicidal Wash to treat walls affected by algae, mould etc. Movement joints: Live construction movement joints should be brought through the system. Refer to manufacturer's standard details. Fire breaks: Includes mineral fibre insulation surrounds to all structural openings and at all vertical edge and horizontal edge (top) terminations, in accordance with Building Regulations Approved Document B. Cavity fire barriers: The system incorporates intumescent cavity fire barriers for use in combination with horizontal fire breaks to prevent fire spread upwards when a drainage cavity is incorporated. Lamella Adhesive is used to adhesively bond fire barriers around structural openings and at vertical and horizontal (top) edge terminations. Insulation:
- Type: PermaRock Track-EPS Insulation:
- Thickness: If required thickness is unknown, consult manufacturer for U-value calculations. Should be between 50–210 mm, in 10 mm increments. - Mechanical fixings:
Reinforcement layer: - Basecoat:
- Mesh reinforcement:
- Secondary (system) fixings:
Render/ Finish: - Top (finish) coat: Type: PermaRock Acrylic K-Finish stippled render/ R-Finish corrugated render: High performance, ready-to-use, through-colour, synthetic resin textured renders reinforced with siloxane to impart improved water repellence. Flexible, weather resistant, water repellent and water vapour permeable.
PermaRock Brick Slips: Lightweight, flexible and breathable, synthetic resin brick tiles used to create a brickwork effect. Facing brick slips and corner (pistol) brick slips provide a traditional or contemporary brick appearance to wall surfaces. Manufactured from high quality raw materials using modern machinery and the skills of experienced craftsmen, these simulated bricks offer a multitude of outstanding product characteristics. The brick slips offer flexible application and design features, and are durable, robust, impact resistant and easy to clean. The brick slips are bonded to the primed reinforcement layer using a ready-mixed dispersion adhesive. Joints are subsequently pointed with a coloured, semi-dry synthetic pointing mortar.
PermaRock Mineral K-Finish/ R-Finish Through-colour Textured Renders: Lime-cement-based, non-combustible, lightweight, ecologically-compatible and cost effective renders providing an economical alternative to synthetic through-colour textured renders (due to low consumption rates and ease of application). Hydraulically curing materials are based on a white cement and lime binder system with lightweight additives, minimal organic content, and additives to induce water repellency.
PermaRock Silicone ULTRA K-Finish/ R-Finish Through-colour Textured Renders: Based on a hybrid binder system of organically crosslinked nano-quartz particles and silicone emulsion, offering a self-cleaning effect with enhanced resistance to dirt pick-up and mould/ algae growth, which provides cleaner surfaces for longer than conventional silicone, acrylic or mineral renders. Lightweight, water repellent, excellent water vapour permeability and can resist aggressive air pollutants. Low environmental impact renders also contain a preservative against coating deterioration due to algae and fungus.
Beads/ Trims/ Profiles: Full system (EWI) and render-only beads, including verge trims, top trims, starter tracks, full system stop beads, render stop beads, window sealing strips (reveals beads), movement joint beads/ profiles for vertical and horizontal joints. Sealing tapes and expansion joint tapes. All as system manufacturer’s or architect’s details, to be supplied by PermaRock. Additional requirements:
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PermaRock Existing Buildings (Retrofit) Brochure - external wall insulation (solid wall), insulated cladding and render systems for the retrofit / refurbishment of building
PermaRock Track-EPS (Rail) External Wall Insulation Systems (drained cavity systems to meet the requirements of NHBC, Zurich and other building insurers)
PermaRock Acrylic Through Coloured K & R Textured Renders (high performance, flexible, weather resistant, water repellent and water vapour permeable renders)
PermaRock Brick Slips (Lightweight, flexible and breathable synthetic resin brick)
PermaRock Silicone Ultra Through Coloured K & R Textured Renders (self-cleansing nano-quartz, colour-fast renders)
PermaRock Mineral K & R Renders (lime-cement-based, lightweight, non-combustible, cost effective renders)