About Polyurethane Foam
New Polyurethane Foam Articles from http://www.fomofoam.com about Polyurethane Foam, and Polyurethane Foam Insulation.
This technique is especially popular in parts of the south, where the humidity is high and its common to put air handlers in the attic. Spraying the underside of the sheathing and the gable-end walls turns the attic into a conditioned space and prevents humid air from entering and condensing on cold ductwork (figure.
Polyurethane FoamIn the part of the attic used for storage, i covered rafters with two layers ofrigid-foam r-6 panels, and then covered that with 1/2 plywood next i insulated the attic floor by installing short lengths of rigid-plastic ventspace baffle along eaves at the perimeter of the insulation. Insulating walls heat energy radiates through hollow walls and is conducted through solid framing. Then i caulk-glued, stapled, and poly-taped edges of the sheet to beams. Freon has been replaced by a more benign expansion gas in expanded styrene, so i look for styrofoam board. Loose fill (sold in bags) is either poured or blown into already finished walls and ceilings, and some attic spaces. You can tape foam sleeves to insulate water pipes and install an insulated flue between the furnace and chimney. An insulation contractor can calculate savings from added protection, but you can do a rough estimate yourself. |
Home Insulation | Attic Insulation | Polyurethane Foam
