Project Profile: Kimmel Center Roof a Challenge April 26, 2002 28 • Interface April 2002 George Shaeffer, the project director for the Kimmel Center for the Performing Arts in Philadelphia, set out to develop a unique structure that would be a focal center for the city and would rival leading performing arts centers worldwide. It is not surprising, therefore, that the design and construction of […] Read More
Construction and the Economy January 22, 2002 It’s “official”: a committee of academic economists under the auspices of the nonprofit National Bureau of Economic Research declared on Nov. 26 that the economy went into recession in March, exactly 10 years after the last recession ended. The committee relies on a mix of factors, rather than the popular rule-of-thumb of two quarters of […] Read More
How Dry Should Concrete Decks Be for Application of Liquid-Applied Waterproofing October 15, 2001 O ver the past several years, a number of failures of liq uid applied waterproofing membranes (LAMs) have been doc umented. For the most part, these membranes had been installed directly over structural concrete decks. One of the important issues in understanding the failure mechanisms in LAMs is that their performance is highly dependent on […] Read More
Reroofing Over Failed Roofs Containing Moisture September 16, 2001 B Y A.O. DESJARLAIS, J.P. SHEAHAN, AND P.C. GARRIGUSAAnn OORRNNLL//RRCCII//SSPPRRII CCoollllaabboorraattiivvee DDeemmoonnssttrraattiioonn PPrroojjeecctt REROOFINGOVERFAILEDROOFSCONTAININGREROOF ING OVERFAI LED ROOFSCONTAINING This paper was originally presented at the International Conference on Building Envelope Systems and Technologies (ICBEST 2001) held in June 2001 in Ottawa, Canada, and is reprinted here with permission. Abstract Although widely practiced within the roofing […] Read More
Reducing Condensation in the Roof Space September 15, 2001 INTRODUCTION dependent on the air temperature. As the temperature increases, so the ability for air to hold vapor is increased. Similarly, as the With increasing pressures on governments to save energy, air temperature reduces, its ability to hold vapor also reduces. the construction industry has been designing buildings to become more energy efficient. This has […] Read More
Sealing Roof Penetrations September 15, 2001 communication equipment, signs, machinery screens, safety railweakest point in any roof and the greatest source ings, and structural steel have created expensive and challenging of leaks. waterproofing problems for all commercial roofers. Commercial roofs are often riddled with penetrations. Although many sealing systems, such as witches’ hats, moldHeating and air conditioning equipment, utility pipes, conduit, […] Read More
Water Vapor Permeance of Roofing and Construction Materials September 15, 2001 OF ROOFING ANDCONSTRUCTIONMATERIALSBY WILLIAM A. KIRN, RRC Introduction The fundamental expectation of any roofing system is that it keep the interior of the building, including the occupants, equipment, and other assets, dry. As a first approximation, a building owner or facility manager might only look at the ceiling tiles on the top floor of a […] Read More
The Florida Building Code: High Velocity Hurricane Zones and the Registered Roof Consultant August 16, 2001 T H E F L R I DA High Velocity Hurricane Zones and the Registered Roof Consultant BUILDING CODE By Michael L. Goolsby, RRC The Florida Building Code To eliminate the confusion that existed in the construction industry in regard to the numerous building codes that were in use within the state, a unified statewide […] Read More
The Energy Management Benefits of Reflective Roofs August 15, 2001 THE ENERGY MANAGEMENT BENEFITS OF BY DAVID R. HAWN, RRC, CEM AND RON ABREMSKI Introduction Roofing, and particularly roof surfacing, can have an impact on energy consumption at commercial facilities. Peak loads and electrical energy consumption are especially affected by. ENERGY STAR®Labeled Roof Products. ENERGY STAR® was developed by the Environmental Protection Agency (EPA) to […] Read More
