Traditional Clay Tile Roofing: Investigation And Rehabilitation May 15, 2006 1. INTRODUCTION Traditional clay tile roofs combine both modern and time-proven materials with traditional craftsmanship to produce what can be one of the most durable, aesthetically pleasing, and architecturally distinct steepslope roofing systems. On the downside, designing and constructing clay tile roofs present technical and aesthetic pitfalls that can defeat the most durable materials. For […] Read More
EIFS: Practical Solutions For Addressing Damages To Existing Buildings May 15, 2006 BACKGROUND History The Exterior Insulation and Finish System (EIFS) was originally developed in West Germany in the 1960s. The original market for EIFS was providing an insulation layer to existing masonry structures. EIFS was introduced in the U.S. in the 1970s. U.S. manufacturers adapted EIFS for use on new construction, including wood-framed structures. An EIFS […] Read More
Unusual Suspects May 15, 2006 Recently, a client contacted Howard R. Green Co. with concerns about his building addition. In a six-month period, employees had noticed a vertical wall crack increasing in width from 1/8-inch to 1-1/8-inches. A meeting was scheduled to have a structural engineer view the damage. The author, a roof and building envelope consultant, attended as an […] Read More
How Safe Are Building Facades? Inspecting For Unsafe Conditions May 15, 2006 The late Clayford T. Grimm, ASTM member and masonry guru, wrote in the March 2000 issue of The Construction Specifier that “Masonry falls off a building façade somewhere in the United States about every three weeks. Over the past few years in the United States, at least 49 such masonry failures have killed 30 persons […] Read More
Review Of Factors Affecting The Durability Of Repointing Mortars For Older Masonry May 15, 2006 Read More
Steep Slope Roofing with Crafted Metals April 22, 2006 Foreword For purposes of this article, “steep slope roofing” refers to roofs with pitches of three in twelve (3:12) or greater. “Crafted metals” refers to those metals that are cut, bent, formed, and installed “in the field” by an architectural sheet metal contractor. “In the field” may be at a job-site or in a contractor’s […] Read More
Class 1 and Class A Roof Assemblies are Not the Same February 20, 2006 PIMA issued this technical bulletin to assist architects, specifiers, and consultants in their decision making regarding fire performance in the roof systems they may design or install. When selecting roof assemblies containing foam plastic insulation such as polyiso or polystyrene, specifiers, contractors, and consultants should confirm that all applicable specifications, building codes, and insurance requirements […] Read More
Issues to Consider Regarding Self-Adhering TPO Single-Ply Membranes September 14, 2005 ABSTRACT Self-adhering roofing systems in the single- ply industry are growing in use, providing the benefits of fully-adhered membranes without the need for field-applied adhesives. Their use presents installation considerations that the roofing professional should include when designing and installing these systems. Data will be presented on the physical characteristics of the membranes themselves and […] Read More
Tracking Down the Moisture: How Infrared Investigation Can Save Money August 14, 2005 When roofs leak, accusations fly as to whose fault it is. Suppose, however, that finger-pointing could be eliminated and the cost of repair reduced by easy identification of the source of the leak – all without destroying the building and displacing its occupants? Infrared imaging is an effective means of monitoring and diagnosing the conditions […] Read More
