Roof leaks can be a museum’s worst enemy, threatening water damage to artifacts and disturbing delicately controlled indoor environments. That’s why an $8.3 million renovation to the core exhibits at the George H.W. Bush Presidential Library and Museum in 2007 was done in parallel with fixing approximately 75,000-sf of the flat, spray-applied polyurethane foam (SPF) roof that had provided almost 10 years of service.
“We were redoing the core exhibit so I thought it was a good time to check the roof,” explains Robert Spacek, Facility Operations Specialist for the George H.W. Bush Presidential Library and Museum.
The original roof was a foam and silicone-coated system. Although SPF roofs can often last 20 years or more, and are renewable indefinitely with simple recoats every 10-15 years, this one was showing some wear and tear. As part of the renovation, there was talk of tearing off the existing roof and replacing it with another solution. This option, however, would be extremely expensive and time-consuming. Plus, the artifacts and records would have had to be moved and the building closed to the public during renovations.
“This particular roof was still in excellent shape and performing well. There was nothing wrong with the base foam roofing insulation,” explains John Austin, Vice President of Spray Polyurethane Foam and Coatings for F.W. Walton Inc., the contractor on the project. “But there were some leaks related to the rotunda and control joints in the windows, and membrane repairs were ineffective to prevent those roof leaks.”
Spacek made a request to the National Archives and Records Administration (NARA) for funding for the roofing project. The NARA architects were subsequently asked to research the cost of replacing the entire roof. After consulting with BASF technical experts, it was discovered that only certain parts needed minor repairs, so a tear-off and replacement could be avoided.
Once the project was approved, the bid went to Houston-based F.W. Walton, Inc. Having found the root of the problem, Austin used ELASTOSPRAY SPF from BASF to perform minor repairs on various parts of the existing roof, followed by a recoat of the entire roof to provide a consistent and fresh aesthetic appeal. This renewal would continue to deliver on the energy savings inherent in SPF roofing systems, prolong the life expectancy of the original roof and provide a quick installation with minimal disruption. All at a far reduced cost compared with a tear off and replacement. Plus, it would divert a lot of waste from landfills.
For more information, contact:
BASF Corporation
100 Park Avenue
Florham Park, NJ 07932
info@basfconstruction.us
construction.basf.us
And thanks to the decision to repair and recoat the original roof, the work didn’t inconvenience the public or expose artifacts to the elements.
“We didn’t have to change anything,” says Spacek, who adds that it was his first big job with this type of roofing system. “Things went really well. The contractor was very easy to get along with. In all honesty, I didn’t understand a lot about this stuff until I started this job. I am very pleased with the results. It has been a very satisfactory experience for me.” +
Related Stories
Smart Buildings | Apr 28, 2014
Cities Alive: Arup report examines latest trends in urban green spaces
From vertical farming to glowing trees (yes, glowing trees), Arup engineers imagine the future of green infrastructure in cities across the world.
| Apr 25, 2014
How the 'digital natives' will transform your Building Team
The newest generation to enter the workforce is like no other that has come before it. This cohort is the first to grow up with the Internet, mobile technologies, and an “always connected” lifestyle.
| Apr 25, 2014
A radiant barrier FAQ: Everything you wanted to know but were afraid to ask
There are many examples of materials developed for the space program making their way into everyday life and radiant barriers are just that. SPONSORED CONTENT
| Apr 25, 2014
6 winners selected for the Architectural League Prize
The Architectural League Prize, created in 1981, "recognizes exemplary and provocative work by young practitioners and provides a public forum for the exchange of their ideas," according to The Architectural League.
| Apr 24, 2014
Unbuilt and Famous: LEGO releases box set of Bjarke Ingels' LEGO museum
LEGO Architecture has created a box set that customers can use to build replicas of the LEGO Museum, which is not yet built in real life. The museum, designed by the Bjarke Ingels Group, will commemorate the history of LEGO.
| Apr 23, 2014
Ahead of the crowd: How architects can utilize crowdsourcing for project planning
Advanced methods of data collection, applied both prior to design and after opening, are bringing a new focus to the entire planning process.
| Apr 23, 2014
Developers change gears at Atlantic Yards after high-rise modular proves difficult
At 32 stories, the B2 residential tower at Atlantic Yards has been widely lauded as a bellwether for modular construction. But only five floors have been completed in 18 months.
| Apr 23, 2014
Experimental bot transfers CAD plans onto construction sites
The Archibot is intended to take technical data and translate it into full-scale physical markings on construction sites.
| Apr 23, 2014
Mean and Green: Top 10 green building projects for 2014 [slideshow]
The American Institute of Architects' Committee on the Environment has selected the top ten examples of sustainable architecture and ecological design projects that protect and enhance the environment. Projects range from a project for Portland's homeless to public parks to a LEED Platinum campus center.
| Apr 23, 2014
Architecture Billings Index dips in March
The March ABI score was 48.8, down sharply from a mark of 50.7 in February. This score reflects a decrease in design services.