Fan-Fold Foam Board Amsterdam NY

Fan-fold foam board in Amsterdam is widely marketed as an easy fix for improving the thermal performance and water resistance of walls when re-siding. But if not applied properly, this option could lead to moisture problems, according to leading building-science experts.

Local Companies

Adirondack; Stump Grinding
(518)842-7091
4303 State Highway 30
Amsterdam, NY
B & B Equipment CO
(518)883-5412
3279 State Highway 30
Gloversville, NY
A Touch of Green Landscaping
(518)355-1404
1013 Helen Street
Schenectady, NY
College Works Lawn & Landscape
(518)374-5296
1219 Kings Rd
Schenectady, NY
Spring Fever Landscaping Inc
(518)370-2385
2532 Van Vranken Av
Schenectady, NY
Timber And Stone LLC
(518)885-8655
1487 Route 50
Ballston Spa, NY
City-Cycle
(518)842-2220
19 Northern Boulevard
Amsterdam, NY
Keane Care Yard Service & Landscaping
(518)661-4605
165 Lakeside Drive
Mayfield, NY
Brickman Group Limited
(518)344-7053
301 Nott Street
Schenectady, NY
Creative Land Design Of NY- Inc
(518)456-4161
10 Chesebro Dr
Schenectady, NY

Provided By:

Source: REMODELING Magazine
Publication date: September 1, 2005

By Clayton DeKorne

Best practice calls for stripping off existing siding, then installing a good weather barrier.

Fan-fold foam board is widely marketed as an easy fix for improving the thermal performance and water resistance of walls when re-siding. But if not applied properly, this option could lead to moisture problems, according to leading building-science experts.

At about ¼-inch-thick, fan-fold foam board adds only R-1 to R-1.5 to the wall system, a negligible insulation improvement. Foil-faced products promise higher R-values, but only when installed with a minimum ¾-inch air space in front of them, an option that requires siding over strapping. According to foam board manufacturers, the advantage of fan-fold is really that the board provides a consistent surface over the old siding, eliminating cracks and crevices that lead to energy-robbing drafts. All manufacturers recommend taping the foam to help stop air leaks and prevent water that gets through the siding from leaking behind the foam.

Photo: Courtesy THE JOURNAL OF LIGHT CONSTRUCTION
Certainly, the foam board provides a smooth working surface for installing new siding, but whether there is a significant improvement in thermal performance is hotly debated. “The danger is that you are putting an impermeable layer over the wall,” explains Steve Easley, a building consultant who specializes in helping building.

Click here to read full article from Replacement Contractor

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