Energy Cork Weber 29th Oct2015 Breakfast Briefing

Render Protected External Wall Insulation (EWI)

Breakfast BriefingThursday 29th October 2015

What is EWI?

Thermally insulated, protective anddecorative exterior cladding

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Beads and closuresInsulationFixingsReinforcement layerBase render coatFinish coat

EWI –Where is it used?

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New ResidentialClancy Quay Residential Development, Dublin

Remodelling BuildingsOrwell Road, Dublin

Commercial New BuildPipers Hill Secondary School, Naas

Social Housing RefurbishmentKnocknaheeny Estate, Cork

Benefits of EWI

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Provides efficient thermal insulation for refurbishment and new build projects

Conserves energy

Minimises heat loss

Eliminates interstitial condensation by creating a 'warm wall' construction

High performance water shedding range offinishes to protect the building fabric

Comprehensive range of colours and textures enable the creation of striking visual effects

Construction Overview - Single Skin

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TT

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No Insulation Internal Wall Insulation External Wall Insulation

-5o 21o 21o 21o-5o -5o

Reproduced from: DEFRA/DTLR (Department of Environment, Food and Rural Affairs/ Department of TransportLocal Government and the Regions); Limiting thermal bridging and air leakage; Robust construction details for dwellings and similar buildings. Please note that this is a UK standard which may be used for guidance but is not a requirement in Ireland.

System Components

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Insulation

Flexible adhesive render

Fibre glass mesh cloth

3-4 mm average thickness

6-12 mm maximum thickness

Achieves all categories of Impact in accordance with ETAG 004 (additional mesh)

Polymer Render Systemsusing a mesh cloth (thin-coat system)

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System Components

Render Brick Systems

Insulation

Used in difficult climaticConditionsAbility to match existing finishes

Lightweight adhesive render

Fibre glass mesh cloth

3-4 mm average thickness

6-12 mm maximum thickness

7-8mm RBB render basecoat

2-3mm RBF render facecoat

System Components

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Insulation

Hand or machine applied renderIn two passes 14-15mm scrapedback to 12 mm thickness formeshFirst pass: through colouredrender, with meshreinforcementSecond pass: through colouredrender, scrape finish

One-Coat System

Category 1 ImpactIncorporates Algaecide Ingredient

System Components - Finishes used with Insulated Render

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Light synthetic aggregateusing an acrylic binder

brick-effect render

Mineral render scraped texture

Dry dashusing 6-8mm

coloured aggregateSpray roughcast

System Components – Performance Coatings

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High Performance Finishesweber.sil P - silicone resin mineral paintweber.sil TF - silicone-based textured finish

• Highly hydrophobic finishes provide high

water repellency

• Less risk of dirt on surface resulting in a low

maintenance facade

• Low susceptibility to soiling, algae and fungi

growth - façades stay new looking for longer

• Highly vapour permeable

• UV stable and resistant to acid rain

(independently tested)

• Resistant to blistering and peeling

• Low VOC content

• Available in over 250 colours

Technical Advice – Generic Details

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Technical Advice – Generic Details

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Technical Advice – Generic Details

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Technical Advice – Generic Details

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Benefits of Render Protected External Wall Insulation (EWI)

Summary

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Enables thermal management of buildings

Maintains a dry, stable structure

Removes the risk of condensation

Contributes to the reduction of CO² emissions

Provides beneficial whole life costs

Creates simplicity in design

Combines aesthetics with durability

Reduces building maintenance

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Thank you for attending, any questions?