Anytime you get the insulation up to superinsulation ratings and seal up the leaks to match, you need controlled heat recovery ventilation.
Its hard to retrofit, but superinsulation pays better than anything you can do to a house to control its energy consumption.
I'm not sure I like the Icynene product. The local vendor is hard to get along with, but I'm concerned that it prevents the encased wood parts of the struccture from breathing and so keeps them from drying and that can lead to rapid rot.
It also costs about three times per board or cubic foot of what fiberglass costs, and isn't the greatest R-value foam available but makes its claim to greatness on the fact it sticks to and seals all gaps that would be heat leaks in poorly installed fiberglass or foam boards. In fact that claim they make stronger than the real R value.
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Today's Featured Article - A Belt Pulley? Really Doing Something? - by Chris Pratt. Belt Pulleys! Most of us conjure up a picture of a massive thresher with a wide belt lazily arching to a tractor 35 feet away throwing a cloud of dust, straw and grain, and while nostalgic, not too practical a method of using our tractors. While this may have been the bread and butter of the belt work in the past (since this is what made the money on many farms), the smaller tasks may have been and still can be its real claim to fame. The thresher would bring in the harvest (and income) once a y
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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