Adhesive Fastening: Used in Commercial Roofing Applications May 15, 2011 The commercial roofing industry has long used a variety of fasteners, fastening techniques, and methods to secure roof insulation to the deck. Historically, materials were affixed to building substrates with hot tar or asphalt-based materials, or they were held in place with pavers or stone ballast. In the early 1980s, driven by Factory Mutual, mechanical […] Read More
Bio-Based Roof Coatings May 15, 2011 Worldwide, most people are looking for greener, bio-based, natural, or sustainable chemistries to replace petrochemicalbased products. Natural (something that is not produced or changed artificially) is not the same as bio-based. Consider, for example, that crude oil comes from a natural source. The United States Environmental Protection Agency (EPA) states: Green chemistry, also known as […] Read More
Self-Adhering TPO Single-Ply Membranes – Physical Characteristics, Installation Considerations, and Flashing Details May 15, 2011 ABSTRACT Self-adhering roof systems in the singleply 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
Roof Decks, A To Z Part 2: Wood Planks and Precast Concrete Planks May 15, 2011 WOOD PLANK DECKING Many types of wood have been used as substrates for roof covers, but this article deals specifically with planks 2½ to 3 inches thick and the like. Such materials are common in older warehouses, textile mills, and heavy manufacturing settings. Unless badly neglected, they are very durable (Figure 1). They also accept […] Read More
Case Study For Waterproofing Below-Grade Walls Shored with Continuous Soil Mix Technology Using a Bentonite Waterproofing System May 15, 2011 INTRODUCTION The development of a seven-story office building with a four-story underground parking garage, located adjacent to the Alaskan Way viaduct, just south of downtown Seattle, posed unique challenges. The project was situated on a sensitive site with specific soil conditions and a high water table. The team identified early on the need to develop […] Read More
Dynamic Water Vapor Permeance of Building Materials and the Benefits to Buildings May 15, 2011 Read More
ACME Corrugated Box Company…It’s All About the Wrapper May 15, 2011 THE BUILDING OWNER Manufacturing corrugated boxes may not seem very exciting or sexy, but at the Acme Corrugated Box Company (ACBCo), it is everything. No consumer wants to see a water-stained corrugated box, fearing that the contents are wet or damaged. A waterstained box just cannot be sold and must be discarded. That is why […] Read More
