External render system for back ventilated, pressure equalised, rainscreen (wall) applications and for application onto suitable mineral render carrier boards (walls and soffits).
External render systems for back ventilated, pressure equalised, rainscreen (wall) applications and for application onto suitable mineral render carrier boards (walls and soffits).
The system includes a range of weather resistant, water repellent decorative through-colour render and brick tile finishes.
Features and benefits:
Please note that this is a non-insulated system; consult manufacturer for further details.
Design considerations:
Uniclass 2015 | |
CAWS | M20/160 Proprietary cement gauged render M21/20 External wall insulation system |
Product Reference | PermaRock Exterior Render System (Back-ventilated Render Rainscreen) (Non-Insulated) |
Building height | Insert requirement. |
Substrate | Brickwork/ blockwork masonryConcreteCross laminated timber (CLT)Insulating concrete framework (ICF)Light steel framing system (SFS)Proprietary render carrier board on supports (forming a through-ventilated air space)Structural insulated panels (SIPs)Timber framing |
Movement joints | Not requiredRequiredLocate as per project drawings. |
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) | PermaRock 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 Reinforcing Mesh |
Mesh (corner) patches | PermaRock Reinforcing Mesh500 x 250 mm patches incorporated into PermaRend Bedding Mortar at corners of all structural openings and level changes (steps). |
Corner reinforcement | PermaRock Corner Reinforcement Angles COR/PL/M |
Render/ Finish | - |
Primer | PermaRock 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. |
Standard product features | Board joints: PermaRock Joint Masking Tape 060/10: 50 mm wide joint tape with self-adhesive backing, for application across all render board joints to prevent render entry into the joint area. |
Product Options | Movement joints: Live construction movement joints should be brought through the system. Refer to manufacturer's standard details. Reinforcement layer: - Basecoat:
- Mesh reinforcement:
- Mechanical fixings (anchored reinforcement): Consult manufacturer for recommendations. 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: 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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PermaRend High Performance Exterior Render Systems (high impact-resistant, lightweight, flexible, thin-coat, polymer-modified, crack resistant renders)
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)
PermaRend (Render Only) Standard Detail Set - Masonry Walls