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Permarock EPS-Premium EWI System with SiliconeUltra K Finish

Verified by manufacturer 15 days ago

PermaRock Products Ltd Third party certifications:
  • QA Certificate

    QA Certificate

    Certificate type

High-performance, lightweight external wall insulation (EWI) system based on low-lambda, enhanced expanded polystyrene insulation with PermaRock SiliconeUltra K Finish.

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Application

Suited for the upgrade of existing buildings and for new buildings, particularly where exemplar levels of thermal performance are required.

Description

High-performance, lightweight external wall insulation (EWI) system based on enhanced expanded polystyrene (EPS) insulation that incorporates microscopic particles of graphite for enhanced thermal performance and to dissipate heat. Permarock EPS-Premium insulation contains a flame-retardant additive (FRA) for improved fire resistance performance.


Permarock SiliconeUltra K Finish is a high-performance exterior through-colour textured render based on a hybrid binder system of organically crosslinked nano-quartz particles and silicone emulsion. It is a lightweight, water-repellent finish with excellent water vapour permeability and incorporates photo-catalytic particles which actively break down dirt particles enabling them to be washed from the surface under normal weathering. PermaRock SiliconeUltra K-Finish resists aggressive air-borne pollutants, provides enhanced resistance to dirt pick-up and contains a preservative against coating deterioration due to algae and fungus.

 

Features and benefits:

  • Lightweight.
  • Suitable for all buildings up to 11 m in height.
  • Suitable for all exposure conditions.
  • High thermal performance insulation.
  • PAS 2035 compliant.
  • Insulation thickness 20 - 300 mm.
  • PermaRock SiliconeUltra K-Finish is available in a range of over 500 colour shades with the highest binder stability (Class A resistance to chalking) and colour retention (Group 1 light fastness/colour stability). 
  • Low air permeability. Can assist in improving airtightness.
  • Adhesively bonded and mechanically fixed insulation.
  • High wind load resistance.
  • Thermal conductivity: 0.030 W/m·K.
  • BRE Global Certification 158/12.

 

Design considerations:

  • Thermal calculations can be carried out for each project to help to determine the thickness of insulation required to achieve U-value requirements.
  • Permarock Mineral Fibre Insulation fire breaks should be incorporated into the system at appropriate locations.

 

Beads/ Trims/ Profiles:

  • A full range of beads, trims, sealing tapes, expansion joint tapes and window sealing strips (APU beads) is available to complete the design of the system. 

General information

Color

Beige

Black

Blue

Bronze

Brown

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Finish

Smooth

Textured

Material

Render

Polymer-modified cement

Polystyrene

Silicone

Silicate

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Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Ss_25_45_72_28 External wall insulation systemsPrimary

CAWS

M21/210 External wall insulation system

M21/20 External wall insulation system . . . . . .

Specification data - External wall insulation systems

Preparation

Not required.

PermaRock fungicidal wash.

Guidance for specification option:

Use to treat walls affected by algae, mould etc.

Manufacturer guidance

Consult manufacturer for details of preparation to suit project substrates.

Insulation

-

Material

Expanded polystyrene (EPS) boards.

Guidance for specification option:

PermaRock EPS-Premium Insulation (EPS100):

  • Standard dimensions: 1200 x 600 mm.
  • Incorporates microscopic particles of graphite for enhanced thermal performance and to dissipate heat.
  • Chlorofluorocarbon (CFC)/ hydrochlorofluorocarbon (HCFC) free, zero Ozone Depletion Potential (zODP) and manufactured and supplied in accordance with BS EN 13163.
  • Declared thermal conductivity (λ90/90) Lambda: 0.030 W/m·K.

Thickness:

  • If required thickness is unknown, consult manufacturer for U-value calculations.
  • Should be between 20–300 mm, in 10 mm increments.


Adhesive

PermaRock Adhesive.

Guidance for specification option:

A polymer-modified cement-based compound for bonding thermal insulation boards to new or existing concrete, masonry substrates as part of PermaRock External Wall Insulation (EWI) systems.

PermaRock Lamella Adhesive.

Guidance for specification option:

A polymer-modified cement-based compound for bonding thermal insulation boards to sheathing boards, CLT, or SIP substrates, as part of PermaRock External Wall Insulation (EWI) systems.

Additional mechanical fixings

PermaRock Mechanical Fixings.

Guidance for specification option:

The type, length and number of mechanical fixings (per board or per m²) required is dependent on the exposure (wind load) conditions.

In-situ pull-out tests are carried out to determine the pull-out resistance of fixings on a project-by-project basis.

Fixings should be used in combination with adhesive bonding of the insulation boards.

Consult manufacturer for recommendations.

Fire barriers and stops

-

Material

Not required.

Mineral wool fire-stopping.

Manufacturer guidance

Required horizontally at each floor level commencing at second floor level and at each floor level thereafter.

Beads and trims

-

Manufacturer guidance

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.

Movement joints

-

Form with

Live construction movement joints.

Guidance for specification option:

Should be brought through the system.

Refer to manufacturer's standard details.

Render carrier or reinforcement

-

Material

PermaRock Bedding Mortar and PermaRock Reinforcing Mesh.

PermaRock Bedding Mortar and PermaRock Armoured Mesh.

Guidance for specification option:

For areas where high levels impact resistance are required.

Fixings

PermaRock Reinforcing Mesh patches.

Guidance for specification option:

  • 500 x 250 mm incorporated into PermaRock Bedding Mortar at corners of all structural openings and level changes (steps).

PermaRock Reinforcement Layer Fixings (stainless steel).

Guidance for specification option:

  • Provide additional structural stability against wind suction and in the event of a fire.
  • The type, length and number of mechanical fixings required are dependent on the exposure (wind load) conditions.
  • In-situ pull-out tests are carried out to determine the pull-out resistance of fixings on a project-by-project basis.
  • Pull-through resistance is determined via laboratory testing.

Render

-

Application

Intermediate coat.

Material

PermaRock Bedding Mortar and PermaRock K&R Primer.

Decorative finish

PermaRock SiliconeULTRA K Finish.

Guidance for specification option:

K Finish: 1.0 mm, 1.5 mm, 2.0 mm and 3.0 mm grain size top coats available. Insert requirements.

Colour

-

Manufacturer guidance

Available in an extensive range of colours from the PermaRock A1 Colour Range. Darker colours (Lightness Factor <20) are unsuitable for use with EPS / Phenolic insulation systems. Insert requirements.

Protective coating

None.

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.

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.


Substrate

Cross laminated timber (CLT).

Existing brickwork/ blockwork/ concrete.

New brickwork/ blockwork/ concrete.

SFS (Steel frame with sheathing board).

Structural insulated panels (SIPS).

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Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Material

Render

Polymer-modified cement

Polystyrene

Silicone

Silicate

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Recyclability

Insulation can be recycled at end of life.

Third party certifications

QA Certificate

QA Certificate

BRE: Global Certification 158/12

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