Technical Resources

Submitted by Tom Urich, Section 7 Marketing for publication by CSI 4/24/2018.

In recent years, the design community has accepted the use of self-­‐adhered membranes to be used as additional protection against water and air intrusion into the building envelope. These products are typically 40 to 60 mils thick with a release paper on the back and are manufactured by at least 10 manufacturers. The chemical composition of these membranes is usually a blend of SBS rubber with asphalt or a butyl based rubber product. The self-­‐healing properties and ease of application has made these products popular for application under parapet wall coping, curbs, valleys and many other conditions that warranty special attention.

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 3/6/2018.
Originally published on Technical Services Information Bureau in January 2008, updated in May 2017

GENERAL INFORMATION: Most caulking materials are classified as a waterproof filler and sealer. Properly applied caulking will seal joints and cracks from the intrusion of water, air, dust, insects, pollution and noise. Choosing the right caulk and correctly applying it will reduce failures by keeping shrinkage and splitting to a minimum.

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 11/15/2017.
Originally published on Technical Services Information Bureau in January 2008, updated in May 2017

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 9/12/2017.
Originally published on Technical Services Information Bureau in December 2012, updated in May 2017

Submitted by CSI Phoenix, Technical Committee
John R. Campbell, CSI, CCCA, RA, LEED AP; Jeff Cox, AIA, CSI, LEED AP; Jim Nisted, CSI, LEED GA, AWCI CEP; Mike Barker, CSI

Submitted by Dennis Keane, Stego Industries, LLC for publication by CSI 6/12/2017
Posted with permission from the American Concrete Institute (www.concrete.org) in September, 2016.

We have always been told that concrete slabs placed directly on a vapor retarder curl more than slabs cast directly on a prepared base. However, we recently measured a slab that we know had a vapor barrier only in limited areas. The portions cast oyer the vapor retarder had less curling than those cast directly on the base. What is the current industry understanding of this issue?

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 4/27/2017
Originally published on Technical Services Information Bureau in September, 2009.

Architects, Engineers and Contractors often need to know how much an installed ceiling system will approximately weigh. The following are suggested guidelines of material weights are for hanger wire and fastener selection. The actual weights may vary with proprietary products or additional materials added.

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 1/26/2017
Originally published on Technical Services Information Bureau in February, 2011.

Recommended Levels of Finish for GypsumWallboard

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 12/8/2016
Originally written by Bill Preston and Achilles Karagiozis.

The importance of location of the proper air barriers, vapor barriers and waterresistive barriers on the wall and the roles they play in high‐performing EIFS

INTRODUCTION

In the last few years more specifications are being written to include the requirements for air barriers, vapor barriers and water‐resistive barriers. Some of these emerging specification requirements are a result of mandates by local building codes while others are a result of promising building science and research.

Submitted by Jim Nisted, Dryvit Systems, Inc. for publication by CSI 11/9/2016
Originally published on Technical Services Information Bureau in December, 2012.

In recent years there has been an increased focus on the use of “air barriers.” particularly for commercial, hotel, institutional and high-rise construction. The heightened awareness of moisture intrusion, mold, and unhealthy indoor air quality on some buildings, has led researchers to re-examine and refine the air movement through exterior walls. Air movement through a building’s exterior walls is a concern as the air can carry moisture which impacts water sensitive materials, structural integrity, indoor air quality (air pollutants and microbial reservoirs) and thermal energy.