BIM SHOW LIVE 14 - BIM for residential

DRAFT(c) bisco Ltd 2014

Value Proposition

Design Build Inspect

The application of BIM technology in residential house construction

Building Integration Software Company Ltd

My presentation

• Residential construction in NZ

• Impact of IT on improving productivity

• Challenges of implementing BIM into SMEs

• See what we have done to overcome these

This is our Story

Residential Construction in NZ

Companies that build new houses

NZ doesn’t have a large Local Authority or Housing Association sector

So the typical house builder is small• So tend to lack sound internal processes

• Have a low adoption of IT

• But represent bigger potential for gains that bigger companies (who do have systems)

Construction has a big impact on the economy

• Is about 10% of NZ GDP

• So a 10% productivity improvement adds 1% to GDP

• The government has set a target of a 20% productivity improvement

by 2020

And productivity isn’t good

What does this mean?

Lower wages – employers can’t afford to pay moreLower profits – a struggle to make a buckExpensive houses – when compared to other goodsLess innovation – business focused on survival don’t invest

Sources: NZ Treasury Productivity in NZ 1988 – 2002The NZ Institute

There is a connection between ICT uptake and productivity

• Chris Hector, researcher in economics at Waikato Management School“but it has a lag in it”

• Grant Florence, CEO Certified Builders

Why IT collaboration works in manufacturing

• Standardisation. Houses are generally different• Long production runs and long term supply. One off• Long term relationships with investment in communication. Transient

BIM capable authoring tools are widely used for design

Masterspec National BIM Survey 2013

With BIM, typically we are talking large commercial projects

• Projects are large / long enough to warrant communication investment

• Teams dedicated to a single project

• PAS1192, BIM Handbook

• BIM is becoming more common

• Still a long way from universal

Different issues in Residential

Mr Builder

Mr Plumber

Builder 2

Builder 2

Builder 2Builder 2

Builder 2

Other Builders

Ms Electrician Builder 2Builder 2

Builder 2

Other Builders

Designer Designer

Designer

• Often builder isn’t known at design phase• Builders deal with a range of designers• Often builders regularly use the same trades• But those trades deal with multiple builders and projects in parallel• No one invests much in communication

The industry is still fundamentally paper based

The good thing in NZ is over 50% of NZ houses are designed using BIM

capable tools

Our vision is to unlock these models

• Transparent information

• Construction is a complex process

• We can’t make it simpler but we can hide the complexity from the user

• Very much the BIM story everyone is talking

BIM = GST (or VAT)

There are challenges to doing this• Multiple data sources• IP and liability issues• Varying construction methods• Lack of understanding of true construction costs

2D drawings are still the standard• Main communication mode is still paper or electronic

paper (PDF)

• 3D CAD BIM models don’t contain all of the required information

• It isn’t practical ot model everything

The designers BIM isn’t always right• Using the designers BIM model assumes that it is right• Reality is, it can’t be• 2D communication provides a process break so allows user

to resolve specific details

Our competition is a spreadsheet and highlighter• Drawings

• Highlighter pen• Spreadsheet

• Human error prone• Time consuming• Skilled resource required• Difficult to scale• 2D based• Spreadsheet Guru dependent / IP Issues

Typical errors• Translation to spreadsheet• Missed items• Scaling• Typos / Overtyping formulas

So all we need to do is

• Handle BIM from variable sources and of variable quality

• Take 2D and paper

• Have a system that largely works out “of the box”

• Is easy to use

• Easy to support

• Doesn’t cost much

So we came up with biscoPro™ to manage the process

PlanningSpecifications

Costs

Inspections

AI SelectionEngine

Database

ProprietaryCAD Models

(ArchiCADRevit

AutoCAD)

Standard XML 3DDefinition

Web server Apps

Browser

bisco RapidBIM

How do we fill the 3D CAD BIM gaps?• Our first attempt….

Footing

Footing Corner

Wall

Wall Corner

Slab

Site

Window

Door

Column

Beam

Project

Recipes are a common approach

• Stores a recipe or classification code on BIM element

• Recipe contains breakdown of materials and labour

• Any change in element characteristics needs a new recipe

• Works well when designer and builder agree codes and materials don’t

change

• Therefore not so good

with residential

Our solution is to use a parametric methodology

• Elements have properties and property sets

• Reuse as many decisions from the 3D CAD BIM model as possible

• Use the properties to make decisions about the element

• Working with buildingSmart Australasia to define a property

structure for residential elements

Allows for activity based costing• Using square meter or linear metre labour rates are only an average

• Activity based costing looks at what attributes drive the tasks and labour times

• Much more sensitive to design differences

Intel New Unit of Computing

• SME builders tend lack robust and repeatable IT processes

• System as an appliance

• Couriered with software pre-installed

• Remote help software loaded

• Included in software price

Go to market strategy

• Cost per won project

• Regional support providers

• Offer a range of services giving customers the option of having

take-off or other tasks done for them

Customer feedback

• Paint is still drying on the residential BIM product

• Feedback very positive

• One early adopter is quoting savings of $2,000 per house

• A manufacturing customer reduced waste from 12% to 5%

• Council has increased inspections by 12%

Add 2D images to the model

RapidBIM

v

Questions?

Thank you for your time and attention

Nick ClementsManaging Director

bisco Ltdnickc@bisco.co.nzwww.biscopro.com