How To Apply Attic Insulation At Eave Space

Aluminum or vinyl soffits eaves installed over plywood soffits that don t have venting holes.

How to apply attic insulation at eave space.

These are precut lengths of 14 gauge spring steel wire that are slightly longer than the space between the joists. Secure the insulation using stay wires. Press the wires up against the insulation and the pointed ends of the wires will dig into the joists holding the insulation in place. You can then apply batt insulation around the foam without worrying too much about the air space.

Spray foam insulation is a great product. Install raised heel trusses or use another roof framing method that allows space to install insulation over the top plates of the exterior walls or install high density insulation to achieve an r value that meets or exceeds code minimums for attic insulation. Insulation often clogs the space between the rafters blocking air from traveling to and from the soffit area. Space stay wires about two feet apart.

Both can be added to uninsulated attics or layered over existing material. A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling. That means insulating the attic floor only not the walls and having vents in the roof. I can also tell you that 73 of all statistics are made up on the spot so please don t ask for.

Loose fill or batt the common term for blanket insulation. Homes insulated with it can be some of the most efficient and comfortable homes built. Apply a 2 inch layer of spray foam insulation r 10 to r 12 directly to the interior surface of the roof sheathing. I ve been in plenty of these homes and can tell you that when spray foam is installed properly they outperform 99 of fiberglass batt insulated stick built homes.

Five common causes of poor attic venting. For diy attic insulation you ve got two choices. Design the roof to allow full insulation over the top plates of the exterior walls. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

With a finished attic insulation must help keep the attic areas comfortable. For decades the typical solution to this problem was to install ventilation baffles near the eaves connecting the air space above the soffit vents with the attic and then to install as much fluffy insulation usually fiberglass or cellulose as there was room for between the top plate of the exterior wall and the ventilation baffle. This will keep the surface warm and help minimize condensation.