Chase EPS RENDER Manuale utente

TECHNICAL INFORMATION &

INSTALLATION MANUAL

Direct Fix & Cavity System

Chase Building Supplies Pty Ltd

Version 2.4 – November 2020

COMPLETE EXTERNAL WALL CLADDING

SYSTEM WHICH ADHERES TO:

NCC 2019, Vol 2, BCA Class 1 and Class 10

Buildings Relevant Australian Standards

CHASE

www.chaseproducts.com.au

BAL 29

AS 1530.8.1:2018

CHASE - Render Guide

Key Features

•High polymer modiﬁcation

for excellent bond strength

•Factory blended for optimum

consistency

•Excellent durability, workability

and application properties

• Will not go drummy like traditional

sand and cement renders

Key Features

• Factory blended for optimum

consistency

• Excellent durability, workability

and application properties

• Will not go drummy like traditional

sand and cement renders

Key Features

•Factory blended for optimum

consistency

•Excellent durability, workability

and application properties

•Will not go drummy like

traditional sand and cement

renders

Key Features

•Lightweight for improved sag

resistance

•Factory blended for optimum

consistency

•Excellent durability, workability

and application properties

• Will not go drummy like traditional

sand and cement renders

Key Features

•High polymer modiﬁcation

for excellent bond strength

•Factory blended for optimum

consistency

•Excellent durability, workability

and application properties

• Will not go drummy like traditional

sand and cement renders

CHASE EPS RENDER

High bond strength, medium grade cementitious render for

application to low porosity surfaces.

CHASE GP RENDER MEDIUM

Medium grade cementitious render for application to stable and

porous masonry surfaces.

CHASE GP RENDER COURSE

Coarse grade cementitious render for application to stable and

porous masonry surfaces.

CHASE HIGH BUILD

Lightweight polymer modiﬁed cementitious render formulated

for thick section application.

CHASE CONCRETE FINISH

Ultra-ﬁne cement based fairing coat for achieving a mottled

concrete slab appearance.

More info visit www.chaseproducts.com.au

Contents

1 Introduction.............................................................................................................................................................2

1.1 Chase EPS External Wall Cladding System..........................................................................................................3

2 System Summary...................................................................................................................................................4

2.1 Beneﬁts............................................................................................................................................................................6

3 National Construction Code (NCC) 2019.........................................................................................................8

3.1 Structural Performance..............................................................................................................................................9

3.2 Dampness and Weatherprooﬁng Performance.................................................................................................10

3.3 Fire Safety Performance ............................................................................................................................................11

3.4 Thermal Performance .................................................................................................................................................11

4 Materials...................................................................................................................................................................12

4.1 Damp Proof Course......................................................................................................................................................14

4.2 Breathable Builders Paper.........................................................................................................................................14

4.3 Chase Flashing tape.....................................................................................................................................................14

4.4 Chase EPS Panel............................................................................................................................................................14

4.5 Chase System Fixings (screws & washers)...........................................................................................................15

4.6 Chase Starter Channel................................................................................................................................................15

4.7 Chase Aluminium / PVC External Angles ..............................................................................................................15

4.8 Chase Foam Filler..........................................................................................................................................................15

4.9 Chase Fibreglass Mesh ...............................................................................................................................................16

4.10 Chase EPS Render System ........................................................................................................................................16

4.11 Sealant (By Builder)......................................................................................................................................................16

4.12 Optional Finishes ..........................................................................................................................................................17

5 Speciﬁcations..........................................................................................................................................................18

5.1 Installation to Achieve Bushﬁre Attack Level (BAL 29) ....................................................................................19

6 Installation ...............................................................................................................................................................20

6.1 Certiﬁcation....................................................................................................................................................................21

6.2 Storage .............................................................................................................................................................................21

6.3 Health & Safety..............................................................................................................................................................21

6.4 Typical Panel Layout....................................................................................................................................................22

6.5 Typical Panel Layout for Openings .........................................................................................................................23

6.6 Fixing Spacing and Edge Distances........................................................................................................................24

6.7 Installation Steps..........................................................................................................................................................24

7 Construction Details .............................................................................................................................................28

7.1 Concrete Slab Rebate .................................................................................................................................................30

7.2 Panel Over Masonry Wall............................................................................................................................................31

7.3 Wall Over Roof................................................................................................................................................................32

7.4 Wall to Balcony..............................................................................................................................................................33

7.5 Garage / Bulkhead / Overhang / Drip ....................................................................................................................34

7.6 Metal Capping Parapet Wall to Roof......................................................................................................................35

7.7 Junction to Masonry Wall ..........................................................................................................................................36

7.8 Horizontal Expansion Joint .......................................................................................................................................37

7.9 Vertical Expansion Joint.............................................................................................................................................38

7.10 Internal Corner...............................................................................................................................................................39

7.11 External Corner..............................................................................................................................................................40

7.12 Window Head ................................................................................................................................................................41

7.13 Window Sill......................................................................................................................................................................42

7.14 Window Jamb ................................................................................................................................................................43

7.15 Eave Sofﬁt.......................................................................................................................................................................44

7.16 Large Penetration.........................................................................................................................................................45

7.17 Service Penetration .....................................................................................................................................................46

7.18 Downpipe Fixing............................................................................................................................................................47

8 Maintenance............................................................................................................................................................48

9 Warranty...................................................................................................................................................................49

10 Disclaimer.................................................................................................................................................................49

1Introduction

Introduction

1.1 Chase EPS External Wall Cladding System

Chase EPS External Wall Cladding System, is a systematic, lightweight polystyrene cladding with a visually

appealing rendered ﬁnish that can be installed direct ﬁx or via a cavity system (EPS, timber or steel battens).

This technical information & installation manual is designed for use by builders & installers to provide all the

relevant information about how to install the system to meet Building Code of Australia (BCA) requirements.

The National Construction Code 2019 (NCC) – Building Code of Australia, Volume 2 for Class 1 & 10 buildings is

a performance based code. Chase EPS has been extensively tested & is certiﬁed to meet the performance

requirements prescribed by the code:

• Structure: (P2.1 Structural stability and

resistance to actions)

Tested and appraised for serviceability and

strength under wind loads up to:

o AS 4055 Wind Class N4 for 75mm

minimum thickness panels, and N3

for 50mm thickness panels;

o AS/NZS 1170.2 serviceability wind

pressures Ws= +0.82kPa & -1.23kPa,

and ultimate limit state wind

pressures of 3.42kPa for minimum

75mm thickness panels and 2.03kPa

for 50mm thickness panels.

• Weatherprooﬁng and Dampness: (P2.2.2

Weatherprooﬁng, P2.2.3 Dampness) Tested

and appraised for resistance to moisture from

the ground and the penetration of water.

• Bushﬁre Prone Areas (P2.7.5)- Tested and appraised

in accordance with AS1530.8.1:2018, for Bushﬁre

Attack Level exposure up to 29 kW/m

(BAL 29) .

• Fire : (P2.3.1 Fire Separation)

Chase EPS External Wall Cladding System is

combustible as deﬁned by the NCC 2019 BCA

Volume 2 and must not be located less than

900mm from boundaries or 1800mm from

another building, as deﬁned in 3.7.1.3.

• Energy Efﬁciency: (P2.6.1 Building).

2System Summary

The Chase EPS panel, screwed through breathable

builders paper to the external wall framing, is

ﬁnished on-site with the Chase render system. This

incorporates Chase ﬁbreglass mesh embedded into

an initial base coat of Chase EPS render, followed by

a second base coat layer and ﬁnished with Chase

tintable texture.

Optional :

• Chase primer (tintable) – The primer assists in

adhesion of the texture coat;

• Chase membrane (tintable) – The membrane

will assist in prolonging the life of the system

(particularly texture) as a whole.

Chase EPS panel is lightweight making for easy

handling and installation while also providing a

continuous thermal barrier to the heat and cold.

The Chase EPS External Wall Cladding System provides

the appearance of a rendered masonry wall without

the increased site preparation, cost and time of high-

mass construction. It is designed to be installed on

parapets and bulkheads which allows the designer

the freedom to achieve various ﬁnishes on the same

façade.

External wall cladding system selection and design

for any building, must be made by a person who

understands all the relevant local and national building

requirements, the technical aspects of the product and

its proper use.

Product installation must be carried out by a

tradesman under the direction of a Registered Builder

who both understand the technical information and

method of installation of the system.

Figure 1: Chase EPS External Wall Cladding System

System Summary

Chase EPS External Wall Cladding System consists of M Grade expanded polystyrene directly screwed or

installed via a cavity system, to either steel or timber wall framing through breathable wall wrap.

The system is very versatile due to the capability of both direct ﬁx or a cavity system and is designed to be used

in residential construction. Examples of applications include external walls, parapets, bulkheads, fences and

columns.

2.1 Beneﬁts

Chase EPS External Wall panels are

available as a standard size of 2400mm

x 1200mm with thicknesses of 50mm,

75mm and 100mm.

Chase EPS beneﬁts include:

Energy efﬁcient construction by

continuous insulation over the framing;

Versatility to satisfy different

architectural forms;

Lightweight for quick and

cost-effective installation;

Weatherprooﬁng, durability,

impact & moisture resistance;

External Insulation & Finish System

(EIFS) is a well-known system for

builders and renderers.

Chase EPS External Wall Cladding System is designed

for Australian conditions. This method has been used

successfully for many years in Europe. EIFS is a

lightweight system that has design ﬂexibility that

provides peace of mind.

Chase EPS External Wall Cladding System is versatile, light weight and

energy efﬁcient and has been designed for Australian conditions.

3National

Construction Code

(NCC) 2019

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