IES Blog

According to Wikipedia, “Sustainable Building Consulting is a practice or service where an intermediary party or company is utilized as a way to forecast levels of sustainability during conceptual architectural stages.” In other words, consultants are a great way to maximize the sustainable potential of your project while ensuring your company is LEED compliant throughout the entire design process.

With mandates coming from states, cities and the federal government, companies are realizing that green building is no longer a fad, but a way of life. In the recent article, “How to use insurance to handle the risks of building to LEED standards”, Philip Glick stated, “Construction of environmentally friendly and sustainable buildings will represent a significant new market for the construction industry. However, it’s also likely that new risks are being created that can have an impact on the building owners, developers, contractors and design professionals involved in these projects.”

To combat these risks, a company preparing to move or even remodel their current space should utilize a consultant (always make sure this service is offered before signing on the dotted line) - ensuring they are following the most up-to-date standards throughout the entire design process.

An additional benefit of using a consultant is that they can explore the feasibility of potential sustainability strategies at a more in-depth level. Drawing on previous experience and knowledge in the field, sustainable design and LEED to help inform a building’s design, consultants can ensure the design process is successful and cost-effective.

At IES, we have a dedicated group of consultants who are available to instruct building managers and architects using IES’ software from the earliest stage of the design process. Without help, companies are often left to trust their vendors, which might cause issues when trying to obtain LEED or even government green building certifications.

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Tags:Architects, Building, IES, LEED, Sustainability

What country are you cheering for in this year’s World Cup games?  As a billion viewers watch the World Cup with anticipation of their country winning, they may not realize all the work that went into prepping for this massive sporting event.  Transportation, lodging and security were key components in preparing for these games, sure. But have you thought about the construction and refurbishment of the 10 stadiums that are being used for this global competition? The A/E/C community might be happy to know that BIM (Building Information Modelling), a tool which you more than likely use every day, played an integral role in building the new stadiums, home to over 40,000 people attending each of the 32 games.

In a recent article in Constructech Magazine, it’s mentioned that 5 new stadiums were built in preparation for the World Cup in Johannesburg, South Africa - 2 of them using BIM techniques and software.  The Nelson Mandela Bay Stadium and the Mbombela Stadium were both constructed using BIM since “arenas are typically unique structures, with complicated rooflines, curved beams, and heavy structural steel design.”  The Nelson Mandela Bay Stadium had to be devised and constructed within a very quick timeframe, since Africa had few arenas that could support the World Cup audience so the designers used BIM technology to streamline 4,200 drawings between multiple participants including designers, architects and building managers.

While BIM might not be an everyday word to most, high profile projects like these provide great proof points for the A/E/C community.  This technology has continued to grow over the years and continues to be a subject people want to learn more about, including the audience at the recent AIA convention in Miami.  According to Reed Construction Data, “BIM was the hot topic” at this year’s show.  The constant buzz around BIM just helps to further underscore its importance to the design process and longevity within the market.

As you watch your favorite team compete for the highly prized cup, keep a close eye on the stadiums, too. You’ll see that BIM played a pivotal part in the 2010 games.

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Tags:AIA, Architects, BIM, Building, communications, Fifa, World Cup

In Architecture there is a persistent organic theme of using the environment to inform both urban and built form; obviously vernacular architecture is a demonstration of this, but in the latter half of the 20th century people have explored this theme in more detail, such that cause and effect is well explained.

In the past, greatest interest in this theme has occurred at times of energy crisis and now with climate change high on the global political and social agenda, there is a real demand for solutions that are climate responsive and adaptive to climate change.  Some of this is taught in Universities and so has a familiarity especially to Architects.

The main reason why Bio-Climatic analysis has not been applied extensively in the past is due to the breadth and depth of the subject and the fact that the logic is somewhat fuzzy.  Manually doing it properly is complex, difficult and very time consuming.  Thus few have been able to master it and turn it to everyday use.  However, the desire to utilise Bio-Climatic analysis is still alive and kicking.

Over the past few years, IES have researched this subject globally and developed the logic to a level where we can automate it, and have consequentially developed a Bio-Climatic tool, which we recently launched.

As part of the evolving VE Gaia product, Bio-Climatic analysis is used in conjunction with other Gaia tools to provide a rich source of knowledge about weather / climate data and the built environment.  It delivers complex knowledge and analysis about what may be appropriate design strategies by providing a detailed list of suggestions appropriate to the specific climate data chosen.

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Tags:Architects, bio-climate, Building, climate

There is a great diversity of climate zones across the planet. Each climate zone presents its own particular challenges for the architects and engineers of the design team. High humidity year round with a small diurnal range presents a challenge to human comfort in the humid equatorial climate zone. At the other extreme, sub zero temperatures in cold regions present an entirely different obstacle. Looking to the past, at the indigenous architecture in each region, we see a remarkable level of ingenuity in design. Before the luxuries of central heating and air conditioning, people used the very form of the building as their only means to control conditions inside the building. The traditional igloo allowed people to survive in an inhospitable climate which offered little in the way of building materials. Utilising the principal that hot air rises, the sleeping area was situated on a raised platform inside the igloo. The thick snow walls insulated the occupants from the sub zero temperatures outside and protected them from the biting wind.

No less ingenious is the traditional Malay house which has an entirely different set of challenges to overcome. Large levels of openable area help keep the house well ventilated, while the overhanging roof functions as a solar shade.

All across the world, the vernacular architecture shows a wonderful degree of congruence with the climate in which it is found. Contrast this with the modern urban skyline where generic high rise apartment and office blocks replace the highly specialised, climate specific designs of the past.

Building form is now more a result of function than climatic conditions. The inventions of central heating and air conditioning represent a great achievement in allowing us greater levels of indoor comfort and flexibility in design.

However, the energy used to condition our buildings represents a significant portion of global C02 emissions. Whilst technological advancements have delivered ever more efficient heating and cooling solutions, there perhaps remains scope for improvement in the external form of the buildings themselves. Lessons can be learned from the climate specific designs of our ancestors. With the benefit of tools and technology which did not exist for the indigenous builder, we can take inspiration from their designs to create buildings better suited to their environment. If we can control climate as much as possible utilising the form of the building alone we reduce the energy expended using mechanical methods, thus helping us towards the goal of reducing global greenhouse gas emissions.

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Tags:Architects, Building, climate, Engineers, Environment, reduce

As a software developer the similarities between how we build and develop the software and how architects design buildings has always struck me. In this blog, I’d like to talk about how the architecture design concept of software engineering.

What is Software Architecture?

The software architecture is a structure which comprises of different elements, the external visible properties of these elements and relationships among them. It’s the organization process of defining a solution that meets all of the technical and operational requirements. It involves a series of decisions on a wide range of factors such as quality, performance, maintainability and overall success of the application.

Why is Architecture Important?

Like a complex building structure, software must have a solid foundation. Failing to consider key scenarios, design for common problems or to predict the long term consequence of a key decision can put the development work at risk. Poor architecture can make the software unstable, produce more bugs during coding phase and it is hard to support development for future business requirements.

The architecture design is an important phase of the whole development process; full consideration of user requirements, business goal and system ability, it draws a blueprint for the later work. At this stage, you should outline all the key scenarios in great details and identify all the possible pros and cons of each software attribute.

We should consider high level concerns instead of implementation details when designing architecture:

• How will the user be using the application?
• How the features of the application will benefit the user?
• How can the application be designed to be maintainable to meet the development schedule?

To understand the user requirements is the key to good architecture design, the software is just a service product which offers convenience and efficiency, all the design should be based on the consideration of those two factors.

The Goals of Architecture

An ideal architecture should be a perfect conversion between business requirements and technique requirements by understanding user cases and then defining a clear and neat way to implement those requirements by programming the software.

A good design is sufficiently flexible to be able to handle all of the user case studies and scenarios, both functional and quality requirements, efficient in implementation details.

The Principles of Architecture Design

Design the architecture with evolution in mind so that it will be able to adapt to requirements that are not fully known at the start of the design process, do not try to over engineer the architecture, and make assumptions that you can’t verify.

Instead you should keep your options open for future changes, identify the foundational parts of the architecture that represent the greatest risk if you get them wrong.

Key Architecture Principles

• Building software for change instead of building to last. There are always new requirements and feedbacks.
• Identifying critical decisions. Identify the areas where mistakes and further changes are most often made, getting these key engineering decisions right the first time so the design is more flexible.

Start with a base-line architecture to create the big picture, and then evolve the details and iteratively test and improve the architecture. Do not try to get every tiny detail right on the first attempt, get the big decision right first, and then focus on the details.

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Tags:Architects, Building, Engineers

We love coming back from the holidays to good news. According to Environmental Leader, and specifically by research released by Zpryme, the U.S. green building market is set to grow 146 percent by 2013.

According to the Environmental Leader article, “The commercial sector should get a boost from the news that major real estate firms have signed up for a pilot program that would help building owners, prospective tenants and buyers ascertain the energy efficiency of a building. The Building Energy Quotient program – Building EQ for short – is administered by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE).”

We are looking forward to the results of the Building EQ program. Given our position in the industry, it is (and has been from the beginning) our hope that buildings are as energy efficient as possible. For new buildings, this starts from the earliest stages of design. For retrofits, there are many changes architects can implement during the remodel to ensure a building not only reduces its energy usage, but also reduces it carbon emissions.

On another note, and for a little fun to start your new year off right, our partners at Autodesk have created RetroFits, a game to help raise awareness about the benefits of better, greener buildings. Stop by and check it out! Buildings continue to be the #1 source of greenhouse gas emissions in the U.S. But we can make them more energy efficient, little by little.

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Tags:Architects, ASHRAE, Autodesk, Building, Engineers, reduce, USA

Yesterday, the UK Green Building Council’s chief executive Paul King urged architects and builders to reduce carbon emissions as a result of the built environment by 50 percent by the year 2020 (BD Online). At the annual conference in London yesterday, he said, “We have the technology and the know-how in the industry, but we haven’t managed to mainstream these yet.”

According to the UKGBC, buildings are responsible for 44 percent of the UK’s CO2 emissions, a number that needs to be drastically reduced if we hope to solve the global climate crisis. Following our recent attendance at Greenbuild , we know people are on board with change. But what is it going to take to get us there?

Read our PDF research paper on “Building Simulation as an assisting tool in designing an energy efficient building: a case study” to understand our take on how you can start to incorporate these techniques and technologies into the design process right from the early stages.

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Tags:Architects, Building, climate, Environment, Greenbuild, reduce

Congratulations to our clients, highlighted in yellow, that were shortlisted for the 2009 Building and UKGBC Sustainability Awards - keep up the good work and good luck at the awards ceremony on 24th November.

You can view all the shortlisted entries by visiting the Building Magazine article

Sustainable Designer of the Year (Architect or Engineer)

Aedas Architects Bennetts Associates Cundall Feilden Clegg Bradley Studios Jestico + Whiles pha Consult PRP Ramboll

Sustainable Consultant of the Year

• AECOM
• Atelier Ten
• Atkins / Faithful+Gould
• BDP
• Davis Langdon
• Hilson Moran
• Jones Lang LaSalle
• WSP

Sustainable Contractor of the Year (Main or Specialist)

• Breyer Group
• Byrne Bros Ltd
• NG Bailey
• United House, Islington
• Wates Group
• Willmott Dixon

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Tags:Architects, Awards, Building, Engineers, Green Building, Green Design, Sustainability, UK GBC

A NEW training course from IES….

As you’re probably aware, a sustainable design revolution is underway in the building industry, and the use of performance analysis (climate, daylighting, energy, airflow) is a vital component – creating understanding of the impact of different strategies on energy consumption and other environmental metrics.  Ultimately helping to shape designs that meet sustainable goals (BREEAM, LEED) and go beyond to carbon neutral.

In achieving these targets the importance of analysis inclusion right from the early design stages is becoming increasingly recognised, with the 2007 Intergovernmental Panel on Climate Change (IPCC) report highlighting that the building sector offered the best mitigation opportunities, and that:

> “An integrated design approach is required to ensure that architectural elements and engineering systems work effectively together.”

> “At early design stages, key decisions usually made by the architect can greatly influence subsequent opportunities to reduce building energy use.”

> “New software based design tools can provide good design techniques, …and virtual testing…”

This has left many with unanswered questions, such as:

> What analysis should I do when?

> What do the numbers mean?

> How can analysis inform the design process?

> What about climate?

> Will this help me incorporate passive/hybrid strategies?

> What about innovative LZCT technologies?

As a widely recognised expert in the global building performance analysis field IES has decided to take a lead on this and create a course addressing these questions. “Understanding the Fundamentals of Sustainable Design, Striving Towards Carbon Neutral”.

We’re planning on covering top tips and rules of thumb in an interactive half-day format; teaching architects, engineers and other professionals within the built environment how to better understand and visualise performance analysis within an integrated design process.

The main objectives include creating a better understanding of climate data and key weather variables, how to recognise opportunities to incorporate passive/hybrid strategies, as well as being able to ‘step into the numbers’ and interpret and understand analysis metrics within the design process and in real buildings.

The course has been developed by the head of our Sustainable Initiatives team Richard Quincey, a former Director of Building Sciences at Gifford, and a Partner at Max Fordham Associates.

We’re trialling it in London, UK during October 2009 – please email nicola.hilliard@iesve.com if you’re interested in attending.

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Tags:Architects, BREEAM, daylighting, Engineers, Environment, hints and tips, LEED, reduce, Sustainability

One of the key benefits of IES VE tools is our collaboration with Autodesk, Google and Graphisoft which allows designers and architects to use their BIM/CAD model to start performing analysis at the very early design stage. It can simplify the process of recreating the model from scratch, as you would have had to do in the traditional way.

Through this, many architects are starting to realize that building performance analysis is not only for engineers, and that by working holistically from conceptual stage, the project can achieve much better efficiencies than when analysis is left till later phases of the project.

In traditional building performance modeling, the modeler uses information from drawings, photos, etc. to construct a model within simulation software from scratch. Misinterpreting the information from CAD to building performance model is common, and in some cases important geometry might be missing from the information provided or left out of the model by accident.

As BIM becomes increasingly popular in the architecture industry and more connections to analysis tools appear and strengthen, architects can start performing analysis on different design options, including climate understanding, building orientation, massing during conceptual stages, and as the design develops, analysis such as daylight assessment, water review, heating/cooling loads, renewable use, etc. IES has a direct plug-in for both Autodesk Revit and Google SketchUp, as well as direct connectivity to Graphisoft ArchiCAD.

One important thing to note is that there are some fundamental differences between an energy model and an architectural model used to generate construction documents. Schema’s such as gbXML (www.gbxml.org) are used to streamline the data flow between BIM platforms and analysis tools, so users should have an understanding of how this works and what will translate, and what will not. 

A model that is very heavy in details will affect the computation time of the simulation. One of the things I like to do whenever I start running simulation is to spend 15-30 minutes cleaning up any elements that are not necessary for energy analysis (of course doing a “Save As” on your existing model first). I know a lot of architects are probably saying if we have a direct plug-in, why do I want to waste all this time cleaning up the model? Isn’t that the reason why we want to use the plug-in?

Spending a little extra time cleaning up a model before running a simulation, will reduce the file size and run time; if you are doing a few simulations it’s definitely worth the time. The IES VE will still run the simulation if you don’t clean up the model, but it will go through every element within it trying to figure out what needs to be included and what doesn’t, which can take a lot of time. Plus, the more detail you have in the model, the more risk of inaccuracy during translation. If you want to understand more about model translation, visit our website for whitepapers on both SketchUp and Revit to IES: http://www.iesve.com/Learning/IES-Whitepapers

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Tags:Architects, BIM, daylighting, Engineers, gbXML, plug-in, plug-ins, reduce, Renewables, Revit, sketchup