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from 350 to 1700 dollars
When determining the value of any object, you must take into account the age, condition, and area you live in. A dolphin chief canoe will range in value from 350 to 1700 dollars depending on condition and age.
fiberglass
$18
$1.50
I am not sure where you heard this but the thickness of old putty against the thickness of insulation for r-value is not as good. The best insulator is air. Fiberglass insulation has a high r-value because of the air it holds not the fiberglass itself. So that's why you don't cram 6in fiberglass into a 4in space, it does not work when you compress it.
480
Fiberglass Insulation, R Value of 3.14. Pine board has an R Value of 1.74
Poured concrete has an R value of about 0.08/inch. Fiberglass batt has an R value of about 3.14/inch (blown fiberglass wall insulation is about 3.2/inch). From these values we can calculate that the equivalent insulating thickness of concrete would be about 3.5x3.14/0.08 = 137.4 inches. Note that concrete blocks have a somewhat better insulating value due to the incorporated air pockets. A 4" concrete block has an R value of about 0.2/inch An 8" concrete block has an R value of about 0.15/inch A 12" concrete block has an R value of about 0.1/inch
{| |- | Scott Number 2453 It wasn't printed in 1800, that is a reference to the era of the canoe. You can purchase one of these for about 20 cents used or mint from a dealer. This minimum value indicates that it has no real value. Dealers typically will purchase stamps at around 25% of the catalog value. Consult a stamp catalog such as Scott's, for a description on how stamps are rated and graded. |}
Every insulation has a different R value. It ultimately is determined by which insulation you will be using. Now lets do rough estimate. 4" thick, regular fiberglass mat has R-value of 13. Assuming that plywood has the same to half the insulating value of fiberglass, 1/2" plywood would have 1/8 to 1/16 of R-value of that 4" mat. Roughly R-1.6 to R-0.8
The value of the Princess WM Rogers and Son creamer marked 5107 varies by condition. In perfect condition it is worth about ten dollars.