Fan-Fold Foam Board Wappingers Falls NY

Fan-fold foam board in Wappingers Falls 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

A Thru Z Landscaping & Contra Cting Inc
(845)228-1580
84 Robin Dr
Carmel, NY
Habitat Revival
(845)265-4090
32 Bank Street
Cold Spring, NY
East Coast Lawn
(845)567-9976
300 Riley Road
New Windsor, NY
Proscape
(845)562-9544
11 Jodphur Lane
Newburgh, NY
JVB Landscaping Inc
(845)463-2271
3 May Court
Poughkeepsie, NY
Stone & Metal Group
(845)278-6032
1 Pine Tree Ln
Brewster, NY
Green Acres
(845)534-0339
114 Manor Drive
Cornwall, NY
Perfect Landscaping
(845)236-4526
26 Vineyard Ln
Marlboro, NY
Pleasant Acres Nursery Inc
(845)561-0113
161 Windsor Highway
New Windsor, NY
Agway Inc Pawling Store
(845)855-1610
158 Route 22
Pawling, 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

Related Articles