Fan-Fold Foam Board Wantagh NY

Fan-fold foam board in Wantagh 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
Roma Horticulture Inc
(516)498-9414
400 Great Neck Road
Great Neck, NY
Outdoor Lighting Co
(631)549-8643
129 Walt Whitman Road Rt. 110
Huntington Station, NY
Weeping Willow Tree Service
(516)766-4785
3445 Woodward Street
Oceanside, NY
Peter
Peter Charles Designes, Ltd.

516-624-9276
17 East Main Street
Oyster Bay, NY
Alure Home Improvements
1999 Hempstead Turnpike
East Meadow, NY
GPM Lawn Sprinkler Parts
(631)864-0007
367 Veterans Memorial Hw
Commack, NY
Flowers by Freyhammer
(516)599-0816
220 Hempstead Avenue
Lynbrook, NY
Advance Irrigation CO
(516)868-0822
14A Oakwood Avenue
Merrick, NY
A B C Irrigations
(516)334-1310
310 Ivy Avenue
Westbury, 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