Fan-Fold Foam Board Spring Valley NY

Fan-fold foam board in Spring Valley 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

Craig Custom Builders
144 Osceola Rd
Wayne, NJ
Franzoso Contracting
33 Croton Point Ave.
Croton-on-Hudson, NY
Rosedale Nurseries Inc
(914)769-1300
51 Saw Mill River Road
Hawthorne, NY
Hudson Valley Masonry & Landscape Construction
(845)362-4725
7 Ardley Place
Monsey, NY
Renaissance Land Management
(914)738-7862
17 Country Club Lane
Pelham, NY
Len Van Builders
31 Stalter Drive
Wayne, NJ
Paragon Installers, LLC
556 N. Route 17
Paramus, NJ
Ultimate Landscaping
(845)783-3894
4 Evelyn Place
Chester, NY
Rosann Land Improvement Limited
(914)834-7616
5 5th Avenue
Larchmont, NY
Manor Tree Company Inc
(914)738-1785
1074 Hunter Avenue
Pelham, 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