Fan-Fold Foam Board Potsdam NY

Fan-fold foam board in Potsdam 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

Leberge & Curtis Inc
(315)386-5296
North Russell Road
Canton, NY
Rex Hardware
(315)375-0256
125 E Main St
Canton, NY
Woodchop Shop
(315)769-2360
9398 State Highway 56
Norfolk, NY
Randall Frank & Son
(315)265-4439
Russell Turnpike
Potsdam, NY
Sonu & R Construction Corp
(718) 421-1899
14960 127th St
South Ozone Park, NY
Aubuchon Hardware
(315)379-0240
21 Miner Street
Canton, NY
Leberge & Curtis Inc.
(315)386-8568
5984 County Route 27
Canton, NY
Woodchop Shop
(315)386-8120
352 Cowan Rd
Canton, NY
Potsdam Agway Cooperative Inc
(315)265-8660
14 Pine Street
Potsdam, NY
Schneiders
(631) 427-9817

Huntington, NY

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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

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