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External Wall Insulation

If your home isn’t new, if it’s an old or already-existing home, consider using blown-in insulation. When installed with the dense pack technique, it will provide significant air sealing. It can be added to exterior walls without too much disturbance to the finished areas of the home. When remodeling and the wall cavities will be open, consider looking into the two-part spray foam or wet-spray cellulose insulation. If your wall cavities aren’t going to be open, then you could buy some injectable spray foam insulation/ if you’ll be doing an installation of the blanket (batt and roll) insulation, this isn’t going to be as densely packed as the two-part spray foam, but it is a very affordable option.

In a new home, however, there are more options available to you. If you’re in the design phase, consider getting structural insulated panels, insulated concrete blocks and even insulated concrete forms. These materials quite literally have the insulation built in, meaning you need to do less work to feel more comfortable and to reduce the inevitable air leaks that will appear. Houses that are built using such products are often praised as having superior insulating qualities and minimal thermal bridging.

If you are building a traditional framed house, you might want to try using advanced wall framing technique. It aims to improve the R-value whole-wall by reducing the thermal bridging and by maximizing the insulated wall area.

bricks and insulation


Also, do consider using insulated wall sheathing rather than wood sheathing products. A half-inch foam of foam sheathing provides an R-value of R-2 to R-3.5 and the thicker foam board can yield even higher R-values. On a whole, foam sheathing provides:

  • A continuous layer of insulation which reduces thermal bridging through the wood studs, saving energy and improving comfort at the same time.

 

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  • The foam sheathing is easier to cut and install rather than the heavier sheathing products.

  • Less cost than plywood or the oriented strand board (OSB)

  • Protection against condensation on the inside wall by keeping the interior of the wall much warmer.

Keep in mind that by replacing the plywood or OSB with foam sheathing, your walls will require additional bracing or other structural reinforcements.

Insulating floors above unheated garages

If you want to insulate the floors above unconditioned garages, it is paramount that you first seal all the possible sources of air leakage. This stratagem has the added benefit of minimizing the danger of certain contaminants (which range from paint, solvents, nefarious gardening supplies, car exhaust, etc.) in the garage when migrating into the conditioned space. Also, don’t forget to install an air barrier, in order to prevent cold air in the garage from “short circuiting” the insulation underneath the subfloor.


For more than 60 years, we, at Taylor Refrigeration & Air Conditioning, have been providing the best home comfort systems to homes located in the surrounding areas of St. Augustine, St. Augustine Beach, Jacksonville, Elkton, Hastings, Palatka, Palm Coast, Ponte Vedra and PV Beach, FL. Being comfortable in your home or business is what we strive for. If you wish to experience excellent home living with our high-quality heating and air conditioning systems, and services, give us a call at: 904-289-2355 or visit our contact page here.