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Permarock EPS-Premium External Wall Insulation System with Brick-effect Render Finish

Verified by manufacturer 11 months 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 Brick-effect Render Finish.

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Application

Permarock EPS Premium EWI systems are suitable for use above damp-proof course (DPC) level on buildings of dense or no-fines concrete, brickwork, blockwork, or suitably sheathed light steel frame or timber frame buildings, in any geographical location including those classified as having very severe exposure to wind-driven rain.


Permarock EPS Premium insulation is adhesively bonded and mechanically fixed and can be applied onto walls of dense or no-fines concrete, brickwork, blockwork, or suitably sheathed light steel frame or timber frame construction, in any geographical location including those classified as having very severe exposure to wind-driven rain.


The systems can be used on new or existing buildings in both the residential and non-residential sectors.


Permarock Mineral Fibre firebreaks should be incorporated into the system to meet the requirements of the Building Regulations.


Permarock systems are only for installation by Permarock registered installers.

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 Brick-effect Render (BER) is a factory-batched, two-coat, self-coloured, polymer-modified, cement-based render designed to simulate the appearance of facing brickwork. In addition, BER can also be used to create features such as soldier courses, brick quoins, etc. in combination with other Permarock decorative finishes.


Permarock BER incorporates a silicone water repellent which provides improved water resistance and helps maintain a cleaner surface. BER is particularly suited to projects where new brickwork cannot be used or where a brickwork appearance is desired. 


The render can be applied to achieve metric or imperial brick sizes, any bond pattern and to create non-standard patterns and effects. Varying the surface texture of the render and incorporating special pigment powders into the render surface during application can also further diversify the desired appearance.


Features and benefits:

  • Lightweight.
  • For buildings up to 11 m in height.
  • High thermal performance insulation.
  • PAS 2035 compliant.
  • Insulation thickness 20–300 mm.
  • 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.

 

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

Brown

Copper

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Finish

Textured

Material

Render

Polymer-modified cement

Polystyrene

Brick

Cementitious

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Shape

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Ss_25_45_72_28 External wall insulation systemsPrimary

CAWS

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

M21/210 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 Brick Effect Render Base Layer.

Decorative finish

PermaRock Brick Effect Render Face Layer.

Colour

Chestnut.

Chocolate.

Gun Metal.

Oatmeal.

Red Cedarwood.

Sandstone.

Terracotta.

Tudor Brown.

Golden Russet.

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

Brick

Cementitious

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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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