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
| Dec 3, 2013
Creating a healthcare capital project plan: The truth behind the numbers
When setting up a capital project plan, it's one thing to have the data, but quite another to have the knowledge of the process.
| Dec 3, 2013
Architects urge government to reform design-build contracting process
Current federal contracting laws are discouraging talented architects from competing for federal contracts, depriving government and, by inference, taxpayers of the best design expertise available, according to AIA testimony presented today on Capitol Hill.
| Dec 3, 2013
Construction spending hits four-year peak after rare spike in public outlays
An unusual surge in public construction in October pushed total construction spending to its highest level since May 2009 despite a dip in both private residential and nonresidential activity.
| Nov 27, 2013
BIG's 'oil and vinegar' design wins competition for the Museum of the Human Body [slideshow]
The winning submission by Bjarke Ingels Group (BIG) and A+ Architecture mixes urban pavement and parkland in a flowing, organic plan, like oil and vinegar, explains Bjarke Ingels.
| Nov 27, 2013
Retail renaissance: What's next?
The retail construction category, long in the doldrums, is roaring back to life. Send us your comments and projects as we prepare coverage for this exciting sector.
| Nov 27, 2013
Pediatric hospitals improve care with flexible, age-sensitive design
Pediatric hospitals face many of the same concerns as their adult counterparts. Inpatient bed demand is declining, outpatient visits are soaring, and there is a higher level of focus on prevention and reduced readmissions.
| Nov 27, 2013
Exclusive survey: Revenues increased at nearly half of AEC firms in 2013
Forty-six percent of the respondents to an exclusive BD+C survey of AEC professionals reported that revenues had increased this year compared to 2012, with another 24.2% saying cash flow had stayed the same.
| Nov 27, 2013
Wonder walls: 13 choices for the building envelope
BD+C editors present a roundup of the latest technologies and applications in exterior wall systems, from a tapered metal wall installation in Oklahoma to a textured precast concrete solution in North Carolina.
| Nov 27, 2013
University reconstruction projects: The 5 keys to success
This AIA CES Discovery course discusses the environmental, economic, and market pressures affecting facility planning for universities and colleges, and outlines current approaches to renovations for critical academic spaces.
| Nov 26, 2013
7 ways to make your firm more successful
Like all professional services businesses, AEC firms are challenged to effectively manage people. And even though people can be rather unpredictable, a firm’s success doesn’t have to be. Here are seven ways to make your firm more successful in the face of market variability and uncertainty.
