Fan-Fold Foam Board Beacon NY

Fan-fold foam board in Beacon 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

Arbor Ridge Caterers
(845)226-8714
17 Route 376
Hopewell Junction, NY
Corsi LandScaping & Snow Plowing
(845)424-3841
1556 RT 9
Garrison, NY
Marrotta Landscape & Tree Service
(845)565-7215
80A Windsor Highway
New Windsor, NY
E S F Landscape & Tree Svc
(845)947-5266
9 Sapling Ct
Thiells, NY
DECO Construction Corporation
(914)245-3301
300 Richard Place
Yorktown Heights, NY
Franzoso Contracting
33 Croton Point Ave.
Croton-on-Hudson, NY
Cherubim Stained Glass Studio
(845)786-0338
55 West Railroad Av.
Garnerville, NY
Red Wing Sand & Gravel
(845)221-2224
Velie Road
Lagrangeville, NY
McKinney Landscaping Corporation
(914)528-3938
20 Austin Road
Putnam Valley, NY
Village Paint & Hardware
(845)496-3755
2 South Street
Washingtonville, NY
Data Provided by:
  

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

Related Articles