Classification data | |
Substrate preparation | PermaRock dubbing-out compound. Guidance for specification option: To make surfaces good (i.e. more uniform). PermaRock fungicidal wash. Guidance for specification option: For treating walls affected by algae, mould etc. Manufacturer guidance Consult manufacturer for details of preparation to suit project substrates. |
First undercoat | Not required. Guidance for specification option: For Scratch Render Finish/ Silicone Scratch Render FT/ Brick Effect Render/ Dry Dash. PermaRock bedding mortar. Guidance for specification option: - A high-performance, polymer-modified, cement-based reinforcement layer render supplied as a mineral dry powder pre-mix, requiring only the addition of water and mixing on site.
- Used in combination with PermaRock Reinforcing Mesh.
- For Silicone ULTRA K-Finish and R-Finish/ Acrylic K-Finish and R-Finish/ Mineral K-Finish and R-Finish/ stone chip render/ brick slips/ brick effect render/ dry dash.
PermaRock scratch render basecoat. Guidance for specification option: For Scratch Render Finish/ Silicone Scratch Render FT. PermaRock K&R primer. Guidance for specification option: For Silicone ULTRA K-Finish and R-Finish/ Acrylic K-Finish and R-Finish/ Stone chip render/ Brick slips. |
Second undercoat | PermaRock reinforcing mesh. Guidance for specification option: - Alkali-resistant coated, multi-strand glass fibre reinforcing mesh for incorporation into a PermaRock basecoat render (PermaRock Bedding Mortar) to create a reinforced basecoat layer which confers mechanical resistance and dimensional stability to the system.
- 500 x 250 mm mesh (corner) patches incorporated into PermaRend Bedding Mortar at corners of all structural openings and level changes (steps).
- PermaRock Corner Reinforcement Angles incorporated into PermaRend Bedding Mortar at all vertical and horizontal external corners.
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Final coat | PermaRock acrylic K-Finish stippled render/ R-Finish corrugated render. Guidance for specification option: - 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.
- Texture: Type ‘K’: Stippled; Type ‘R’: Corrugated.
- Resistance to soiling: Good.
- Colour fastness: Good; colour shade dependent.
- Colour range: Over 1250 standard colours (PermaRock Colour Chart; RAL, NCS, BS 4800, etc.). Colour matching available.
PermaRock brick-effect render (BER) face layer. Guidance for specification option: - Pre-batched, two-coat/ two-layer, self-coloured polymer-modified, cement-based render designed to simulate the appearance of brickwork.
- Can also be used to create features such as soldier or sailor courses, brick quoins, arch keystones, springers, etc. and used in combination with other PermaRock decorative finishes.
- Incorporates a silicone water repellent, offering good water resistance which helps maintain a cleaner surface for longer.
- The render can be applied to achieve metric or imperial brick sizes, any bond pattern and also to create non-standard patterns and effects.
- Thickness: Brick-effect Render Base Coat: Approximately 6 mm; Brick-effect Render Top Coat: Approximately 3 mm.
- Textures: Various, depending on finishing tools and techniques employed (e.g. brushed, rollered, scratched).
- Resistance to soiling: Very good.
- Colour fastness: Very good.
- Colour range: Nine standard colours. Non-standard colours to special order (minimum order quantities may apply).
- Colour options: Special pigment powders can also be incorporated into the surface to vary the colour effect.
PermaRock brick slips. Guidance for specification option: - 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.
- Size: Flat facing bricks: 215 x 65 x 4–6 mm-thick; Corner-facing bricks: 215 x 102 x 65 x 4-6 mm thick. Other sizes available, subject to minimum order quantities.
- Coverage: Flat facing bricks: Approximately 58 per m²; Corner (pistol) bricks: Approximately 13 per metre.
- Resistance to soiling: Very good.
- Colour fastness: Excellent.
- Colour range: 12 standard colours.
- Colour matching available, subject to minimum order quantities.
- Textures: Flat, textured or sand particle.
PermaRock dry dash (dashing aggregate). Guidance for specification option: - Known as dashing stones or pebble dashing.
- Traditional decorative rendering technique that provides a tough, durable, long lasting, cost-effective and almost maintenance-free finish to exterior wall surfaces.
- Based on Dashing Mortar (DM), a specially formulated, self-coloured, polymer enriched mineral-cement offering enhanced performance over traditional sand/ cement renders into which pre-washed and screened dashing aggregates/ Stones are cast during the application process.
- Weathering resistance: Excellent.
- Durability: Excellent.
- Colour fastness: Excellent.
Colour: - PermaRock Dashing Mortar: Available in grey, white, yellow, cream, red and pink as standard. Other shades can be made to special order and subject to minimum order quantities.
- PermaRock Dashing Stones: 32 standard blends of natural aggregate stones, specially selected and blended for dry dashing, are available for use in combination with PermaRock Dashing Mortars.
- Other colour combination can be manufactured, subject to minimum order quantity, or can be blended on site by the installer.
PermaRock mineral K-Finish/ R-Finish through-colour textured renders. Guidance for specification option: - 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.
- Texture: Type ‘K’: Stippled; Type ‘R’: Corrugated.
- Resistance to soiling: Good.
- Colour fastness: Very good.
- Colour range: Over 900 standard colour shades (lightness factor (LF) ≥30); consult manufacturer's literature for details. For colours with LF 20–30, over-painting with a PermaRock equalising paint is advisable.
PermaRock silicone ULTRA K-Finish/ R-Finish through-colour textured renders. Guidance for specification option: - 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.
- Texture: Type ‘K’: Stippled; Type ‘R’: Corrugated.
- Resistance to soiling: Excellent.
- Colour range: Over 1000 options, including over 500 ‘A1’ colour shades: PermaRock Colour Chart, RAL (non-A1 shades) and BS 4800 (non-A1 shades). Colour matching service available.
- Colour fastness: ‘A1’ colours provide excellent resistance to colour fade and chalking.
- Colour fastness of non-A1 colours is dependent on the colour shade selected.
PermaRock stone chip render. Guidance for specification option: - Ready-mixed, acrylate-based exposed aggregate finish with colour coordinated natural stone granules.
- Tough, durable exterior finish, particularly suited for application around entrance ways, plinths, etc.
- Environmentally friendly solvent-free, water-based formulation.
- Achieves a silk-matt, scrub resistant, cleanable, tough and hard wearing decorative finish that is resistant to aggressive air pollutants, moss, algae and fungal growths.
- Resistance to soiling: Very good.
- Colour fastness: Excellent.
- Colour range: Nine standard colours; other colours available to special order and minimum order quantities.
PermaRock silicone scratch render / PermaRock silicone scratch render FT. PermaRock silicone ULTRA facade coating. Guidance for specification option: - Self-cleaning facade paint with nano-quartz matrix structure. For use with K-Finish/ R-Finish renders with lightness factor < 20.
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Beads | - Manufacturer guidance 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 |
Sealant movement joints | |
Sealant | Live construction movement joints. Guidance for specification option: should be brought through the system. Refer to manufacturer's standard details. |
System completion | - Manufacturer guidance - Specify movement joint trims, etc. or refer to detail drawings.
- Specify areas for additional reinforcement mesh e.g. at locations prone to greater risk or intensity of impact, etc.
- Provide details of brick coursing, bond and features to quoins, door/ window heads and raised feature bands or margins around doors/ windows etc., or refer to drawings.
- Provide details of colour changes, panelization/ faux joints, etc., or refer to detail drawings.
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Product Reference | PermaRend Exterior Render Systems (Non-Insulated) |
Substrate | Existing brickwork/ blockwork/ concrete. New brickwork/ blockwork/ concrete. |
Grain size | Not applicable. Guidance for specification option: All types other than K or R finishes. K 1.5 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic K-Finishes only. K 2.0 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic/ Mineral K-Finishes only. K 3.0 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic/ Mineral K-Finishes only. K 5.0 mm. Guidance for specification option: For Mineral K-Finishes only. R 2.0 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic R-Finishes only. R 3.0 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic/ Mineral R-Finishes only. R 5.0 mm. Guidance for specification option: For Silicone ULTRA/ Acrylic/ Mineral R-Finishes only. |