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Are LEED Construction projects inherently more dangerous for construction workers?

A report recently published by researchers from the University of Colorado has generated considerable buzz within the high performance construction industry.  According to Matthew Hallowell, assistant professor of Civil, Environmental and Architectural Engineering at the University of Colorado Boulder, he and his fellow researchers found that LEED construction locations had a 50 percent higher injury rate than non-LEED sites. Hallowell and his team visited and made observations at various LEED and non-LEED construction sites, pored over injury reports, and conducted interviews in their process of completing their study.

The report is interesting and provocative.  I would like to highlight a key finding from the report, the summary of key findings from which follows.  Prefabrication of buildings such as the modular construction techniques we use here at Capsys may greatly or mitigate many of these increased risks.

We thank the author for his work and suggest that you readers seek out the entire report and form your own conclusions

 

Key Findings from Research:

Design for Safety Techniques for Green Building Components

Reports and Authors:

Collective results of this study have been organized into three manuscripts, which have been

accepted or are in review by the Journal of Construction Engineering and Management:

Safety Risk Identification for High Performance Sustainable Building Construction

Bernard R. Fortunato III, Matthew R. Hallowell, Michael Behm, Katherine Dewlaney

Safety Risk Quantification for High Performance Sustainable Building Construction

Katherine S. Dewlaney, Matthew R. Hallowell, and Bernard R. Fortunato III

Safety Risk Mitigation for High Performance Sustainable Building Construction

Katherine S. Dewlaney and Matthew R. Hallowell

Overview:

The US Green Building Council’s Leadership in Energy and Environmental Design

(LEED) program represents the largest program in the United States for the measurement,

verification, and certification of green buildings. A recent study found that LEED certified

buildings have a recordable injury rate that is 9% higher than traditional, non-LEED

buildings. This finding served as the impetus for the present study, which aimed to (1)

identify and evaluate the safety and health risks associated with the design elements and

construction management practices implemented to achieve LEED certification by

conducting eight detailed case studies; (2) quantify the percent increase in base-level

safety risk through 37 interviews with designers and contractors who had completed an

average of four LEED projects and 100 traditional projects in their average of 18 years of

experience in the architecture, engineering, and construction industry; and (3) identify and

describe strategies that reduce the safety risk associated with the design and construction

of high performance sustainable projects by conducting 26 additional interviews with

experienced designers and constructors. The study revealed 12 LEED credits that

increase safety risks on construction projects when compared with traditional, non-LEED

alternatives. The study also revealed that there are feasible prevention through design

techniques, technologies and controls, and management strategies that can be

implemented to mitigate these risks. The results of the study were packaged into a first-generation decision support tool that provides designers and construction managers with

safety suggestions for their LEED projects.

 Workers on LEED construction projects are exposed to work at height, with

electrical current, near unstable soils, and near heavy equipment for a greater

period of time than on traditional projects.

 Workers are exposed to new high risk tasks such as constructing atria, installing

vegetated roofs, and installing photovoltaic (PV) panels that are not present on

traditional projects.

 The most significant impacts are a 36% increase in lacerations, strains and

sprains from recycling construction materials; a 24% increase in falls to lower

level during roof work because of the installation of on-site renewable energy

(e.g., PV panels); a 19% increase in eye strain when installing reflective roof

membranes; and a 14% increase in exposure to harmful substances when

installing innovative wastewater technologies.

 Designers and contractors identified prefabrication, effective site layout, and alternative products as methods to prevent injuries that specifically relate the hazards of each sustainable element.

 Specifying low VOC materials reduces health-related risks for construction workers

who perform work in enclosed environments.

Conclusions:

 This research has revealed the substantial need for a detailed lifecycle analysis of

the safety impacts of high risk and common sustainable building technologies.

Although these technologies may have substantial environmental benefits, many

have been shown to result in greater exposures to known occupational hazards

during the construction process. Further research is needed to evaluate the safety

risks during manufacturing of sustainable materials, shipping, installation, and

maintenance.

 

For more information, contact the lead author:

Matthew.hallowell@colorado.edu

© Copyright 2011, CPWR – The Center for Construction Research and Training. All rights reserved This research

and report was funded by CPWR – The Center for Construction Research and Training as part of a cooperative

agreement with the National Institute for Occupational Safety and Health, NIOSH (OH009762). The research is

solely the responsibility of the authors and does not necessarily represent the official views of NIOSH. CPWR, the

research and training arm of the Building and Construction Trades Department, AFL-CIO, is uniquely situated to

serve workers, contractors, and the scientific community. For more information, visit www.cpwr.com

Modular Homes have an Important Role to play in helping the Environment

So says the National Recourses Defense Council in a recent article posted by our friends at “Living Green Magazine”.  We’d like to share the article with you.  We agree that Modular Construction is at the forefront and leading the Green Revolution in construction. 

Within the past year, Capsys has achieved a LEED Gold certification for our Park Terrace apartment building project in Yonkers, NY and achieved LEED Platinum for our Building 92 project in Brooklyn, NY. Our steel frame, midrise modular construction system, while aimed at a different market segment of construction than the corporate examples named in the article, will continue to contribute Sustainable Construction solutions to our clients.

http://livinggreenmag.com/2012/02/29/home-garden/how-green-are-todays-modular-homes/

Energy saving wireless lighting and heating controls by Verve Living Systems

We’ve been testing a suite of products from Verve Living systems in our office and, so far we are very impressed.  Verve’s products provide easy, convenient or even passive ways to save energy.  Their products fall into four main categories:

  • Occupancy detection devices that sense motion and, when no motion is detected over a given time span, can wirelessly communicate with lighting and HVAC systems to close circuits or kick back temperature settings thereby saving on energy costs while keeping the space comfortable.  We see a wide range of applications in the Hospitality Industry for these products.
  • Heating and cooling controls produce energy savings by adjusting the thermostat automatically. This technology is useful for all types of residential applications.
  • Battery-free or lumen/solar powered user interfaces – door/ window switches and remote controls – that allow you to wirelessly control the lighting and temperature.  Imagine never having to change batteries in your remote controls!
  • Lighting and load-control products that enable total control over lighting and outlets.  So you can sit in your living room with the wireless controller and turn on or dim lights anywhere in the house.

A link to Verve’s web site is listed below.  Please visit them.  We think their products, when used in conjunction with our Modular Construction technology offer almost any residential or hospitality construction project a sustainable, energy efficient alternative to conventional site/craft construction.

http://vervelivingsystems.com/

Park Terrace

Check out the newest pictures of Park Terrace, a multifamily building,  located in Yonkers, NY. This four story building which consist of 114 modules was completed in 2011. Currently most of the 49 one bedroom apartments are occupied.

Residence Hall Construction Trends

Public/Private Residence Hall construction is a fast growing trend in the academic world.  Below is a link to a New York Times article about this trend. Our non-combustible modular construction system is the perfect solution for providing precision-built, green and sustainable residence halls while minimizing campus disruption by using our system that reduces construction times by 50%

http://www.nytimes.com/2012/01/25/realestate/commercial/public-college-private-dorm.html?pagewanted=1&_r=1&adxnnl=1&adxnnlx=1328122784-fZniCYPSqLpCQRB6QuMHNA

 

For more information on our GreenFlex Residence Hall solution along with sample plans, please visit our website also linked below.

http://www.greenflexsystem.com/

Apartment Living is making a comeback in a big way

Our friends a Building Design+Construction magazine do a great job and we recommend that you keep up with their highly informative website and magazine.  The article linked her is entitled: “Rental Renaissance, The Rebirth of the Apartment Market”.  It details how the Rental Market is finally starting to pick back up since the 2008 collapse of the entire housing market.  It’s definitely recommended reading. 

Please click on the link below:

http://www.bdcnetwork.com/rental-renaissance-rebirth-apartment-market

Passive Fire Protection

Safety and efficient response will always be paramount in fire safety.  Getting occupants to a safe area and allowing dedicated professionals to effectively extinguish fires and other hazards are number one!

Capsys is engaging in thorough research and study to increase the efficacy of passive methods for ensuring this.  Sprinkler systems are a highly effective active protection measure, but not the only one.  We must spur innovative passive measures and research to provide for safer and more safety.

A modular construction Welcome to 2012!

With the start of the New Year it seems we are bombarded with predictions of future trends from every futurist or futurist wannabe.  But many of them are fun and thought-provoking so it seems a good idea to gather a few of the better ones together and let you scan them.  We at Capsys hope your New Year is safe, prosperous and “Sustainable” (to use 2011’s most overused buzz word one more time!) 

 

Leading Leglobal green building consultant Jerry Yudelson, says green building will continue its rebound globally in 2012 in spite of ongoing economic difficulties in most developed economies.

“Green Building Consultant Lists Top Ten Green Building Mega-Trends for 2012”

http://www.prweb.com/releases/2011/12/prweb9037435.htm

 

Our friends at Focus on Renewable Energy published this list of the articles published in their newletter that generated the most hits and comments during the last year.

“Top 5 favorite articles published in 2011”

http://www.renewableenergyfocus.com/view/22861/top-5-favourite-content-2011/

 

The good folks at the website Jetson Green published this list of “What are the 5 major

“Green Home trends for 2012”

http://www.jetsongreen.com/2012/01/five-green-home-trends-buildipedia.html

 

And lastly, the folks at Green Building Advisor listed these as their annual picks for the most innovative products for the coming year.

“Top 10 Green Building Products for 2012”

http://www.greenbuildingadvisor.com/blogs/dept/energy-solutions/top-10-green-building-products-2012

 

Brooklyn Navy Yard Building 92, a Capsys project has attained LEED Platinum recognition.

As earlier blog entries have informed you, in 2010 Capsys was contracted to supply 24 modular sections to be used as an exhibit space and administrative office complex for the official museum of the Brooklyn Navy Yard – Building 92.  The Navy Yard is where our manufacturing complex is located, so we leap at the chance to be involved! 

Building 92 has recently been recognized by the US Green Building Congress with certification as a LEED Platinum project.  We are very proud to have played a part in the project and thought you might enjoy seeing some additional images of the Building 92 museum.  The following web-link is to an article in “Inhabitat New York City”   a website devoted to green design, architecture and innovation in New York City.   The web link contains a 14 image slide show of image of building 92.  Enjoy!

http://inhabitat.com/nyc/bldg-92-at-the-brooklyn-navy-yard-opens-its-leed-platinum-seeking-doors-to-the-public/

Drain Water Heat Recovery

Some very interesting facts and great new innovations in the November 2011 issue of ASHRAE Journal.  Drain water heat recovery is an extraordinary opportunity to reclaim energy that is literally washed down the drain.  Water heating accounts for 17% of residential site energy consumed, when heated water is sent down the drain it still contains 80% + of the energy infused into it.  Various units are available to recover much of this energy and use it to temper the water being heated for the same use.  Capsys will be exploring this technology and use on future projects as we strive to continuously improve on the energy efficiency of our buildings and product.