Zip System

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Combining Sheathing With a WRB and Air Barrier

How well do Zip and ForceField sheathing integrate a structural panel with bulk water and air management?

Posted on Jun 22 2017 by Peter Yost

Full Disclosure: First, there are a lot of different ways to get continuous air and water control layers on the exterior of a building enclosure. You can use housewrap, taped-and-sealed rigid foam insulation, liquid-applied membrane, or either the Huber Zip or Georgia-Pacific ForceField system. Each approach has strengths and weaknesses.


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Image Credits:

  1. Image #1: Zip sheathing - Elden Lindamood; ForceField sheathing: Georgia-Pacific
  2. Images #2 through #4: JM Huber
  3. Images #5 through #15: Peter Yost

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Two Wingnuts Describe Their Backyard Tape Tests

In tests performed by Peter Yost and Dave Gauthier, Huber’s Zip System tape outlasts Siga Wigluv and Tescon Vana

Posted on Apr 1 2016 by Martin Holladay
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Regular visitors to GBAGreenBuildingAdvisor.com probably know that I’m a big fan of backyard product tests. (In the past, I’ve reported on my tape tests, flexible flashing tests, and liquid-applied flashing tests.) So when I noticed that Peter Yost and Dave Gauthier would be giving a presentation titled “Sticky Business: Tape Testing, Round Two” at the BuildingEnergy 16 conference in Boston, I showed up early to make sure I got a good seat.


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Image Credits:

  1. Photo #1: Jerelyn Wilson
  2. Photo #2: Martin Holladay
  3. Images #3-#7: Peter Yost and Dave Gauthier

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Zip Sheathing Tips

Specify the right roofing underlayment, install flashing at the base of your walls, and include a rainscreen gap

Posted on Jan 26 2015 by Matt Risinger

This past year I had the opportunity to build a SIP(SIP) Building panel usually made of oriented strand board (OSB) skins surrounding a core of expanded polystyrene (EPS) foam insulation. SIPs can be erected very quickly with a crane to create an energy-efficient, sturdy home. and timber-frame house designed by architects Aamodt & Plumb and built in conjunction with Bensonwood Homes, the famous timber-frame company in New Hampshire. (Side note: I first heard of Bensonwood while watching This Old House in high school. It’s a dream come true to build a house with their timber/SIP package.)

Bensonwood has been using Zip System sheathingMaterial, usually plywood or oriented strand board (OSB), but sometimes wooden boards, installed on the exterior of wall studs, rafters, or roof trusses; siding or roofing installed on the sheathing—sometimes over strapping to create a rainscreen. in their SIPs (Structural Insulated Panels) for a few years now, and has really liked them for several reasons.


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Image Credits:

  1. All photos: Matt Risinger

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Making Slow Progress on My Renovation

Lessons learned about construction speed, construction quality, and house size

Posted on Nov 12 2013 by Carl Seville

After a couple of months of construction, I finally have more to report on my renovation project. It is moving more slowly and is costing more than I had expected, but it is moving along, the quality of work is excellent, and the end is in sight.

I am reminded almost every day why I decided to exit the renovation business – as exciting as it is to see construction progress, the time and energy it takes to make sure everything gets done right and on time exhausts me. This process has also been teaching me some important lessons about patience and right sized homes.


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Image Credits:

  1. Carl Seville

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Airtight Wall and Roof Sheathing

Arguments in favor of exterior air barriers

Posted on Apr 9 2010 by Martin Holladay

UPDATED on March 8, 2016

In the early 1970s, residential builders knew almost nothing about air tightness. The first residential air barriers were installed in Saskatchewan in the late 1970s, when pioneering Canadian builders began sealing the seams of interior polyethylene sheeting with Tremco acoustical sealant. The Canadian builders (and their American imitators) went to a lot of trouble to weave the interior poly around framing members at rim-joist areas and partition intersections.


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Image Credits:

  1. South Mountain Company
  2. Coldham & Hartman Architects
  3. John Brooks

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