Hail Damage to Shingles – Part III July 14, 1998 Hail Damage to Shingles – Part III By Colin Murphy, RRC, Robert Mills and Steve Bunn INTRODUCTION |- IHE FOLLOWING ARTICLE IS THE THIRD IN A SERIES OF THREE ADDRESSING SIMULATED HAIL retesting and hail (impact) damage to shingles. The first (published in the January issue of Interface) provided an overview of the history of […] Read More
Hail Resistance and Performance Analysis of Elastomeric Coated SPF Roof Systems July 14, 1998 Hail Resistance and Performance Analysis of Elastomeric Coated SPF Roof Systems by Dan T. Kashiwagi, Ph.D., PE and Manoj K. Pandey, M.S. ABSTRACT w s F JHE ROOFING INDUSTRY SUFFERS MILLIONS OF DOLLARS OF DAMAGE FROM “SEVERE” (GOLFBALL-4sized) and “oversized” (baseball- to softball-sized) hail. Facility managers and insurance carriers with extensive damage to their […] Read More
Asphalt Fumes – A Growing Concern June 14, 1998 Asphalt Fumes – A Growing Concern By Pat A. Cook, Atty., and James E. Krause There is a growing concern over possible harmful effects of asphalt fumes on workers, particularly in the hot mix roofing and roadwork industries. OSHA has designated asphalt fumes as its number one non-regulatory priority. According to Ed Geddie of […] Read More
Walkways June 14, 1998 Walkways By Karl A. Schaack, P.E., RRC Walkways, walk pads, or traffic pads are commonly installed on the various types of conventional commercial roof systems to provide some level of protection from foot traffic. These “paths” are typically originated at a roof access point (i.e., ladder, hatch, door, etc.) and extend outward across the […] Read More
Vapor and Condensation (And Termination of Several Myths) May 14, 1998 Vapor and Condensation (And Termination of Several Myths) By Lyle D. Hogan, RRC, FRCI The development of condensation within compact roof assemblies fosters a number of problems. Most of these moisture entrapment problems shorten the service life expectancy of the roof which then can be understood in financial terms (an issue sure to attract […] Read More
Performance of the Glass Fiber Reinforced Asphalt Shingle April 14, 1998 Performance of the Glass Fiber Reinforced Asphalt Shingle By Ray L Corbin IN THE UNITED STATES, INDIVIDUAL SHINGLES are generally used on steep-slope applications (slopes greater than 2″ in 12″). Of these shingles, 80% are asphalt-based. Of that number, more than 75% are glass fiber felt reinforced. These shingles provide beauty and style as well […] Read More
Lightweight, Autoclaved, Aerated, Cellular Concrete Roof Panels (LAACCRP): Structural and Re-Roofing Problems April 14, 1998 Lightweight, Autoclaved, Aerated, Cellular Concrete Roof Panels (LAACCRP): Structural and Re-Roofing Problems By Frank N. Caruso, P.Eng. im2 ooucT>? <__^ i f~7H1LE DURABILITY OF CONSTRUCTION PRODUCTS IS A SUBJECT OF INCREASING \ V V / importance, it has generally been accepted that roof decks should last for the life of the building. The J […] Read More
Spec Writing: How Much Control Should We Have? April 14, 1998 Spec Writing: How Much Control Should We Have? By Robb Smith, RRC WHEN WRITING SPECS, SHOULD WE MANdate every material or installation procedure? I was recently contacted by two different roof system manufacturers’ technical personnel who complained about two different practices of some roof consul¬ tants, both of which relate to the same concept. […] Read More
Don’t Tread on Me: Guidelines & Helpful Hints for Walking on Roofs April 14, 1998 Don’t Tread on Me: Guidelines & Helpful Hints for Walking on Roofs By Karl A. Schaak, P.E., RRC INTRODUCTION / \ VARIETY OF PEOPLE MUST ACCESS A ROOF IN ORDER TO FULFILL SPECIFIC DUTIES. THIS / A \ work can consist of making roof repairs, conducting inspections/surveys, or performing repairs/maintenance to / ^ \ […] Read More
Life Cycle Cost Analysis Using Roofing Coatings April 14, 1998 Life Cycle Cost Analysis Using Roofing Coatings By William A. Kirn, RRC ^INTRODUCTION I IFE CYCLE COST ANALYSES HAVE BECOME VALUABLE TOOLS TO THE CONSTRUCTION INDUSTRY c as better methods of measuring the value of a product over its service life. They have been used recently by roofing □ material manufacturers to position […] Read More
