Fan-Fold Foam Board Port Chester NY

Fan-fold foam board in Port Chester 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

Ironwood Landscapes Inc
(516)922-9555
6278 Northern Boulevard Suite 2
East Norwich, NY
Brothers II Landscapes Inc
(631)754-8514
350 Larkfield Road
Northport, NY
Beato Service Limited
(914)762-6146
106 Pine Avenue
Ossining, NY
National Lawn Sprinklers Inc
(914)949-3717
18 General Heath Avenue
White Plains, NY
Rob Feuer
Smart Energy, Inc.

914-960-1424
86 Donald Drive
New Rochelle, NY
Franzoso Contracting
33 Croton Point Ave.
Croton-on-Hudson, NY
Long Island Organic Tree & Lawn Care
(914)777-8733
2 Maynard Drive
Farmingdale, NY
C K Landscaping
(631)261-7347
9 Bruce Lane
Northport, NY
Sandoval Landscaping
(914)667-1080
39 Grove Street
Mount Vernon, NY
Totino Landscape Corporation
(718)747-0929
15438 11th Avenue
Whitestone, 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