Fan-Fold Foam Board East Setauket NY

Fan-fold foam board in East Setauket 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

Legacy Builders and Remodelers
1363-8 Lincoln Ave
Holbrook, NY
P. Aponte Landscape & Design- Inc.
(631)582-8245
7 Split Cedar Drive
Islandia, NY
Raintree Irrigation
(631)728-7246
275 Smithtown Boulevard
Nesconset, NY
Long Island Irrigation
(631)737-4717
322 Collington Drive
Ronkonkoma, NY
Maxwell Turf & Supply
(631)643-8873
414 Long Island Ave
Wyandanch, NY
Kuhn Construction, Inc
417 Main St
Islip, NY
Hewlynn Home & Garden Center
(631)242-9070
1971 Deer Park Avenue
Deer Park, NY
Enviro Scapes
(631)447-5879
187 Long Island Avenue
Holtsville, NY
Island Land Care
(631)585-2154
11 2 St
Ronkonkoma, NY
North Country Tree and Landscaping
(631)689-8733
441 Route 25A
Saint James, 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