Green Term Defined: Vapor Barrier

Dec 14, 2015

A vapor barrier is a barrier that reduces the rate that water vapor can move through a material. There is discussion in the industry if a true vapor barrier is even possible. This has led to the use of the term Vapor Retarder. Vapor retarders limits moisture from passing through a materials and have three classes of permeability. Vapor Retarders per the building code have a permeability of less than 10, less than 1, or less than .1 perm.

20141014_093337 vapor barrier

There are three categories of vapor retarding materials: Impermeable, Semi-Permeable, and Permeable. Impermeable materials include things such as plastic sheets, vinyl wall coverings, plywood, extruded polystyrene, and oil-based paints. Semi-Permiable materials included expanded polystyrene and latex paints. Most other materials are Permeable including fiberglass insulation, open cell spray foam, drywall, and stucco.

In our mixed-humid climate, we want to avoid using impermeable materials in our wall and roof systems. Allowing walls to dry in both directions is critical to the long-term durability of your structure. To further protect your home, you must have a proper ventilation system that is controlling humidity inside your structure.

Read more from our Green Term Defined series:

Energy audit

Energy Use Intensity (EUI)

As always, this event is free and open to everyone, and refreshments will be provided by Gaines Group Architects.

Series Name: An Interlude of Water

Medium: Hand-cut Montage

Artist Statement: “An Interlude of Water

The stillness of a hot, lazy summer evening broken by the laughter of good friends as fishies bite and the sun slowly slips towards the horizon.

The pond collection swirls and twirls like the eddies at the shoreline. Developing slowly to capture the quiet aspects of what creatures could quietly inhabit a pond within the Shenandoah landscape.

The past eight months have been a creative frenzy of exploration, joy, and personal contentment, from envisioning a cohesive grouping of collages that share a color palette to letting my imagination play. The resulting collection has stretched my artistic skills and broadened my perception of interpretation and idea development.

My Process:

Each collage starts as a line drawing, creating a detailed map of the imagery to be included within the work. Moving the drawing to the wooden panel entails many bits of hand-cut paper, acrylic mediums, and acid-free paste. A sticky mess, but it so satisfies the need for detail my brain requires. All papers used are colored with acrylic paint applied with painting tools or a Gelli plate. A lot of time is spent pressing (lever press, heavy books, etc) and drying the glued papers before and after mounting on the wooden surface. Acrylic varnish provides a protective sealant for the completed collage. From concept to finished work, the process takes, on average, four weeks.”

Artist Bio: I’ve always been one to dabble in new trends and techniques. Treading water, seeking the thing that would capture and devour my imagination. In 2018, when life was overwhelming and my soul needed an escape, I fell back in love with collage. Over the intervening eight years, my artistic practice has settled into an obsession, forcing a growth in style and technique with results that personally bring me joy. A relocation to Harrisonburg, Virginia, has allowed me to establish a permanent studio space, adding momentum to my artistic journey.

*Accessibility Note: This building was previously restored from a fire. The elevator shaft is currently not functioning and there is an absence of ramps in the space. Because the show is on the 2nd floor, this may pose an issue for those who have mobility challenges. We are aware of this need and we apologize greatly if this changes your ability to attend.

This event is free and open to everyone. Snacks and refreshments will be served and we look forward to seeing you there!

Each month we host a new artist in our building’s 2nd floor gallery at the Chesapeake Western Depot at 141 W. Bruce St. (second floor entrance is on Chesapeake). Artwork will remain on exhibit through the month. Come view the show anytime and get a tour the Depot!