Fan-Fold Foam Board East Meadow NY

Fan-fold foam board in East Meadow 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

Kuhn Construction, Inc
417 Main St
Islip, NY
Atlantic Irrigation SUPL Inc
(631)254-2094
789 Long Island Avenue
Deer Park, NY
Turf King Plus
(631)367-1752
29 Marlboro Drive
Huntington, NY
Nassau Lawns Inc
(631)957-1070
135 Herzel Boulevard
Lindenhurst, NY
Jeff Vise
Broadway Tile Company

516-665-2314
711 Railroad Place
Island Park, NY
Alure Home Improvements
1999 Hempstead Turnpike
East Meadow, NY
V & J Oil CO Inc
(516)931-3113
333 Deer Park Road
Dix Hills, NY
Water Rite Irrigation
(516)221-2284
392 Andrew Avenue
East Meadow, NY
Rocky Construction & Landscaping
(631)271-6579
163 1st Avenue
Huntington Station, NY
Val Bisagni
Long Island Siding Systems

631-278-7648
143 E. 4th Street
Deer Park, 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