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Permarock EPS-Premium EWI System with Dry Dash

Verified by manufacturer 1 month 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 insulating panels with a Permarock Dry Dash finish.

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+44 (0)1509 262924 Website

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 Dry Dash provides a tough, durable, long-lasting and cost-effective finish for use with Permarock EWI and PermaRend and Permarock exterior render systems.

 

Permarock Dry Dash comprises pre-washed and screened Dashing Aggregates which incorporate different types and colours of stones that are blended together and applied onto a specially formulated, self-coloured, polymer-enriched mineral-cement dash receiver, Permarock Dashing Mortar (DM), which provides enhanced performance over traditional sand/cement renders.


Permarock Dashing Mortar is a factory-batched, pre-coloured, dry-powder premix which requires mixing with water on site. It is available in a range of standard colours; Grey, White, Yellow, Cream, Red and Pink. For other colours please contact Permarock.

 

Features and benefits:

  • Lightweight.
  • For buildings up to 11 m in height.
  • Suitable for all exposure conditions.
  • 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

Cream

Grey

Ivory

Pink

Red

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Finish

Dry dash

Textured

Material

Render

Aggregate

Cementitious

Cement

Polymer-modified cement

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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

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

M21/210 External wall insulation system

Product range

External Wall Insulation (EWI) Systems

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:

  • Standard dimensions: 1200 x 600 mm.


PermaRock EPS-Premium Insulation (EPS100):

  •  Incorporates microscopic particles of graphite for enhanced thermal performance and to dissipate heat.
  • They are 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.

Manufacturer guidance

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

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.

Manufacturer guidance

Additional reinforcement layer fixings are required for buildings over 2 storeys in height and/or for buildings in high exposure locations and at fire breaks.

Mesh size

4 x 4 mm.

Manufacturer guidance

PermaRock Reinforcing Mesh.

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 Dashing Mortar.

Decorative finish

PermaRock dry dash aggregate (dashing stones).

Guidance for specification option:

  • Also 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

-

Manufacturer guidance

PermaRock Dry dash aggregate (dashing stones):

  • 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.
  • Colour: 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 combinations can be manufactured, subject to minimum order quantity, or can be blended on site by the installer.
  • Consult manufacturer and insert requirements.

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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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.

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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

Aggregate

Cementitious

Cement

Polymer-modified cement

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Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

5.9 kg CO₂ eq/m²

Self declared

Recyclability

Insulation can be recycled at end of life.

Third party certifications

QA Certificate

QA Certificate

BRE: Global Certification 158/12

Literature

PermaRock New Buildings Brochure (external wall insulation, insulated cladding and render systems for new buildings)

PermaRock New Buildings Brochure (external wall insulation, insulated cladding and render systems for new buildings)

PermaRock Existing Buildings (Retrofit) Brochure - external wall insulation (solid wall), insulated cladding and render systems for the retrofit / refurbishment of building

PermaRock Existing Buildings (Retrofit) Brochure - external wall insulation (solid wall), insulated cladding and render systems for the retrofit / refurbishment of building

PermaRock EPS-Premium (Grey) EWI System Sheet (high-performance, light-weight enhanced EPS graphite systems)

PermaRock EPS-Premium (Grey) EWI System Sheet (high-performance, light-weight enhanced EPS graphite systems)

PermaRock Acrylic Through Coloured K Textured Render (high performance, flexible, weather resistant, water repellent and water vapour permeable renders)

PermaRock Acrylic Through Coloured K Textured Render (high performance, flexible, weather resistant, water repellent and water vapour permeable renders)

PermaRock Brick Effect Render (two-coat self-coloured polymer-modified cement-based render used to replicate brickwork)

PermaRock Brick Effect Render (two-coat self-coloured polymer-modified cement-based render used to replicate brickwork)

PermaRock Brick Slips (Lightweight, flexible and breathable synthetic resin brick)

PermaRock Brick Slips (Lightweight, flexible and breathable synthetic resin brick)

PermaRock Dry Dashing Aggregate / Stone (tough, durable, long lasting, cost-effective and almost maintenance render finish)

PermaRock Dry Dashing Aggregate / Stone (tough, durable, long lasting, cost-effective and almost maintenance render finish)

PermaRock SiliconeUltra Through Coloured K Textured Render (self-cleansing nano-quartz, colour-fast renders)

PermaRock SiliconeUltra Through Coloured K Textured Render (self-cleansing nano-quartz, colour-fast renders)

PermaRock Scratch Render (cement-lime render / monocouche / ashlar effect)

PermaRock Scratch Render (cement-lime render / monocouche / ashlar effect)

PermaRock SiliconeUltra Façade Coating (advanced self-cleansing façade paint with nano-quartz matrix technology and high resistance to UV)

PermaRock SiliconeUltra Façade Coating (advanced self-cleansing façade paint with nano-quartz matrix technology and high resistance to UV)

PermaRock Stone Chip Render (hard wearing, low maintenance, acrylate based exposed aggregate finish with colour coordinated natural stone granules)

PermaRock Stone Chip Render (hard wearing, low maintenance, acrylate based exposed aggregate finish with colour coordinated natural stone granules)

PermaRock Mineral K & R Renders (lime-cement-based, lightweight, non-combustible, cost effective renders)

PermaRock Mineral K & R Renders (lime-cement-based, lightweight, non-combustible, cost effective renders)

PermaRock Standard External Wall Insulation Detail Set - Masonry Walls

PermaRock Standard External Wall Insulation Detail Set - Masonry Walls

PermaRock External Wall Insulation Systems onto Sheathed Frame Substrates - Standard Detail Set

PermaRock External Wall Insulation Systems onto Sheathed Frame Substrates - Standard Detail Set

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