New measures to drive productivity

Moorthy BCA

Overview of impactful productive technologies

Updates on new measures on productivity

Capability building for new productive technologies

Sharing experiences from overseas learning trips

Outline

Overview of impactful productive technologies

Updates on new measures on productivity

Capability building

Sharing experiences from overseas learning trips

Outline

Overview of impactful productive technologies

• Prefabricated Prefinished Volumetric Construction (PPVC)

• Cross Laminated Timber (CLT)

• Prefabricated Bathrooms Units (PBUs)

PPVC CLT PBU

Prefabricated Prefinished Volumetric Construction (PPVC)

• Productivity impact – 30 to 50% in manpower and time savings (on-site)

• Environmental Impact – much less noise and dust, shorter construction period

Installation on site the LEGO way Apartment sized units fully finished in factory

PPVC for High Rise Buildings

Atlantic Yards B2-NYC On-going construction

Layout

Variation in layout Video clipping

Flexibility in Design PPVC

19-Story Dorm in UK 330 MacDougal Street in the US

Placing of module

Flexibility in Design PPVC

A fully furnished PPVC unit

Project name : Litle Hero, Melbourbe

Cross Laminated Timber (CLT)

• Engineered timber as structural and non-structural components

• Productivity impact – 25% to 35% in terms of manpower and time savings (on-site)

• Environmental Impact – much less noise and dust, shorter construction period

Installation on site CLT prefabricated in factories

CLT buildings in overseas

Countries (Europe & UK)

Number of projects to date ( 1995-2012)

Year CLT introduced

Austria 1000 1996 Switzerland 1000 1998 Germany 8000 1995 Italy 2500 1998 France 2800 1998 Scandinavia (Finland/Sweden/Norway/Denmark) 100 2000 UK 350 2004 Spain 50 2004

Other countries which have recently adopted CLT include US, Canada and

Australia

CLT buildings in overseas

Healthcare Sports hall

Institutional

Prefabricated Bathroom Units (PBUs)

• Productivity impact – 50% in manpower and time savings

• Environmental Impact – much less noise and dust, shorter construction period

Finished PBU Lifting PBU in place PBU in factory

PBU projects in Singapore since 2007

Steel Wall and Concrete Floor System

Concrete Wall and Floor System

No of projects with PBU 21

No of dwelling units 7500

No of PBUs 14000

Private residential projects,

from 2007 to 2013

High-end projects using PBU

St Regis Residences

Cliveden at Grange

Benefits of these impactful productive construction technologies

Lesser noise/dust Faster construction

- Higher productivity - Fewer workers

One-stop Building Innovation Panel (BIP)

Bringing in new technology through the BIP process

• In-principle acceptance from various agencies

• PPVC and CLT have been introduced into Singapore through the BIP process

• Priority in plan submission for approval

Overview of impactful productive technologies

Updates on new measures on productivity

Capability building

Sharing experiences from overseas learning trips

Outline

Raising of Buildable Design Scores

+3

+7

Types of projects

Private projects (non-GLS)

Public sector projects

Projects by key GPEs Private Projects (GLS/IGLS)

+11

Additional scores implemented on 1st Sep 2013

Additional scores to be implemented on 4Q2014

Additional scores to be implemented on 4Q2015

+8 +8

+3 +2

+2 +2

NEW

+3 +3

Raising of Constructability Scores

+3

+4

Types of projects

Private projects (non-GLS)

Public sector projects

Projects by key GPEs Private Projects (GLS/IGLS)

+8 +5 +5

+3 +2

+2 +2

NEW

Additional scores implemented on 1st Sep 2013

Additional scores to be implemented on 4Q2014

Additional scores to be implemented on 4Q2015

+3 +3

Expanding Buildable Design Framework

Mandate standard components and

productive technologies in Sept 2014 Standardisation

Floor heights – for residential non-landed and office

Door sizes – for residential non-landed

Precast refuse chute sizes – for residential non-landed

Precast staircase sizes – for all developments

Mandatory

drywall for all internal partition wall except wet areas for residential

non-landed projects

NEW

Stipulation of productive technologies as GLS/iGLS condition

• As a land sales condition, developers are required to adopt stipulated productive technologies

• Enforcement through legislation

• Target to implement later this year

Stipulation of productive technologies as GLS/iGLS condition

New productive technologies

Tech Development Types

PPVC Hotels, residential

CLT Low and medium-rise buildings, for community use

PPVC CLT

*If suitable sites are available

Stipulation of productive technologies as GLS/iGLS condition

Tech Development Types Targeted GLS/IGLS sites

PBUs Residential (condos, ECs) All sites (GLS)

Minimum prefab level

Industrial development

All sites (IGLS)

PBUs Prefabrication (e.g. precast, structural steel)

More common productive technologies

Framework for acceptance of PBU Systems

Two prong approach for acceptance of PBU systems

• In-Principle Acceptance (IPA) through Building Innovation Panel (BIP)

-To ensure the performance requirements of PBU

• PBU Manufacturers Accreditation Scheme (PBU -MAS)

- To accredit the production process and plant facilities

Objective: To ascertain the performance requirements and quality in PBUs

• Ease of assembly & installation

• Fully prefinished and prefitted off-site Design for Productivity

• Suitability of materials (wall, floor, ceiling etc)

• Location of services/vertical stack/maintenance panel

• Provision for BFA requirements

• Methods for watertightness tests (e.g. pipe joints, wall-to-wall and wall-to-floor joints)

• Typical details (shop-drawings to be provided)

Design for Functionality

• QC checklist and standard

• Training for installers/renovators

• Suitability of lifting details

Design for Fabrication/Installation

• Provision & method statement for maintenance / renovation / replacement

• User Manual for homeowners Design for Replaceability

PBU screening panel- Area of assessment

• Administration by Singapore Concrete Institute (SCI)

• Audit will be conducted at the PBU plant

• Audit emphasise on capabilities, processes & specific quality criteria for PBU

• The Certificate of Accreditation awarded by SCI shall be valid for 2 years, subject to the yearly surveillance audit.

PBU accreditation framework

Overview of impactful productive technologies

Updates on new measures on productivity

Capability building for new productive technologies

Sharing experiences from overseas learning trips

Outline

Capability building for new productive technologies

Ecosystem

1. Expanding Capacity 2. Building Capability 3. Innovation and R&D

Supply is adequate • Enough players to

support demand (suppliers, contractors, consultants, etc)

Build capabilities • Overseas learning journeys • Seminars and workshops • Guidebooks and homeowners'

manuals • Share learning points from

completed projects • Training for renovation

contractors

Research areas • Materials • Potential problem

areas • Ease of maintenance

& renovation

Capability Building – Adequate supply

PPVC & CLT suppliers PBU suppliers

13 suppliers have gone

through the panel

assessment

Annual PBU production capacity is

about 20000units

Capability Building – Industry Learning Journeys

PBUs PPVC CLT

Capability Building – Seminars and Workshops

• Recent held CLT Seminar (29 Apr 2014)

Capability Building – Seminars and Workshops

Recent PBU Seminar (06 August 2014)

Sharing knowledge from overseas and local suppliers

34 BuildTech Asia Exhibition

Build Smart Conference

Builder Skills Competition

Capability Building – Singapore Construction Productivity Week 2014 (13-16 Oct)

Conference/Briefing • Smart Builders Leadership Series Conferences • Briefing Professional and Trades Associations • Briefing to registered contractors

1-to-1 engagement • Productivity clinics

1-to-1 engagement

Build Smart Publications

Smart Builders Leadership Series

Capability Building –Engagement Platforms

Overview of impactful productive technologies

Updates on new measures on productivity

Capability building

Sharing experiences from overseas learning trips

Outline

• Volumetric assembly • Complete off-site production • Only MEP connection works at site

Italy UK US Japan

Lightweight concrete&

Drywall

Drywall Drywall FRP

Outline PBU

Design and Production

• Upstream consideration

• Upon mock-up confirmation, no further changes

• Early decision is essential

Video clipping

Installation and site coordination

• Generally, non-critical path installation

• Double slab approach

• Weather-tight protection

Installation Speed

Overseas,

20 units /day with four men

Singapore,

6 units /day with five men

Other practices for us to consider

High curb for the base slab

Choice of board / waterproofing / adhesives

Heavy duty studs

Backing plate

Drywall PBU

Video clipping

To get full advantages of PBU

Must consider as an architectural product

Not as a Structural product

PPVC

Two types of PPVC modules

Beam & Post Steel gauge

Learning Points

a. Overview

o Generally for student hostels and

hotels

o Structure is formed by galvanized

steel gauges

o 95% interior works are done in factory

Steel Gauge PPVC

Paragon-Student hostel

Learning Points

b. Design & Fabrication

o Floor base is composite wood with insulation (for

acoustical purpose)

o Cement board for wet areas, but no waterproofing

o Internal face drywalls are paint finish

o External faces walls are with waterproof lining

Beam & Post type PPVC

Learning Points

a. Overview

o Structure is formed by I beam & steel post

o Mainly catered for healthcare projects

o Size of the module is 17mx4.2mX4m – weight is about 17 tonnes

o Suitable for up to 30-sty building

Beam & Post PPVC

Learning Points

b. Design & Fabrication

o Floor base is made of 50 thick mm

screed (with insulation below)

o Walls are non structural element -

Drywall with timber studs

o Internal architectural and M&E

works are done in factory

o M&E works are tested in factory

o Lifting hooks are integrated with

I-beams

Both type PPVCs

Learning Points

Installation

o External cladding is done at

site by main contractor

o Installation speed-

8 modules/day with 6

workers

o Use mobile crane for

installation

o No on-site work at site,

except M&E connections

PPVC modules Covered with claddings

PPVC

• Applications

o Potential applications in Singapore:

• Hotels & Student Hostels

• Hospitals

• Institutional buildings

To achieve the desired outcome

Developers Consultants

Main contractors

Specialist contractors

Facility managers

Collaborative approach in the entire value chain

Through BIM, ECI and Project Management

On-site construction Off-site manufacturing &

On-site installation

Transient workforce Skilled and experienced

workforce

Thank You