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Envelope

  • Studying Moisture in Fat Walls (Subscriber content)

    Comparing the performance of a cellulose-insulated double wall against the same wall insulated with two different thicknesses of low-density open-cell spray foam.

     
  • JLC June Letters

    Risinger’s recent video sparks a debate about Tyvek, and a reader takes issue with foam-slicing saws.

     
  • Roofing With Asphalt Shingles

    More than 80% of U.S. homes have asphalt shingle roofs, and though easy to install, you still need to do it right. These details and best practices will help ensure a durable roof.

     
  • A Drywaller’s Approach to Air Sealing Homes (Subscriber content)

    Air leaks through the building shell can have a significant effect on a home’s durability, energy use, and indoor air quality. Myron Ferguson explains how drywall can be an important part of the air barrier of an enclosure.

     
  • Masonry Through-Wall Flashing at Windows (Subscriber content)

    Enclosing an open second-story deck above a kitchen with through-wall flashing poses some unique challenges.

     
  • Q&A: Creating a Walk Out Basement

    How do you protect the footing and foundation from frost in a very cold climate that has a doorway in the foundation for a walk out?

     
  • Is Tyvek worth the Price?

    With housewrap, you often get what you pay for

     
  • Slideshow - An Insulated Roof Parapet

    EIFS cladding helps a Brooklyn contractor meet the challenge of achieving Passive House EnerPhit insulation standards for a masonry addition.

     
  • Insulating a Roof Parapet

    To keep a masonry wall within the conditioned envelope, crews wrap the building’s rooftop parapet into the building’s EIFS exterior.

     
  • Working With Flexible Flashing (Subscriber content)

    Some contractors still don’t understand how to get the most out of these products. Here are some tips for installations that stand firm for the long haul.

     
  • How to Safely Frame a Roof on the Ground (Subscriber content)

    To eliminate the danger and discomfort of framing and shingling a roof, Lee McGinley takes the task to the ground.

     
  • CertainTeed Easi-Lite 30 Gypsum Board

    Up to 30% lighter than standard 5/8-inch Type X board, Easi-Lite 30 combines reduced weight with fire resistance.

     
  • Huber Radiant Barrier Roof Sheathing

    This Zip System sheathing panel features a barrier on the underside that reflects radiant heat.

     
  • JLC April Letters

    Joists in an old floor, repairing a concrete slab in an old floor, and more.

     
  • Details for Foam-Free Superinsulated Construction

    The architects and Passive House consultants are working on a comprehensive set of building details for new construction and retrofit.

     
  • Creating a Palette of Foam-Free Superinsulation Details

    There’s more than one way to build a highly insulated, air-tight house—or to tighten up and super-insulate an existing home. Here’s a look at an evolving array of superinsulated details that don’t use spray foam.

     
  • Watertight Replacement Windows

    Flashing windows is not just for new construction. Here are details on how to help prevent window leaks when working around the major types of siding.

     
  • Passive House Walls for an Old House

    A coastal Maine builder is applying his trademark Passive House wall system to an existing house by the water.

     
  • Wrapping an Old House in a Passive House Puffy Jacket

    Mid-coast Maine builders EcoCor, Inc., are applying their characteristic insulated wood I-joist exterior wall system package to an existing old house.

     
  • Insulating Outside the Foundation

    Best practices for insulating a foundation.

     
 
 
 
JLC Field Guide to Decking