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Old 04-17-2013, 10:05 AM
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Join Date: Dec 2012
Location: North Carolina
Posts: 4
Default Cutting roll of insulation to fit dome

The insulation roll is 24 inches wide. How to cut it for
good coverage and minimum waste? I have not solved
the question of how to make triangles fit? Just slap dash
draping and overlapping seems crude and wasteful. Any
ideas will be appreciated. I could not find much information
searching threads and photos. Thanks. Careme in NC
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Old 04-17-2013, 01:26 PM
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Join Date: May 2012
Location: Salt Lake City, Utah
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Default Re: Cutting roll of insulation to fit dome

C,

You may want to post your question under the construction thread, will see more response there. Here is a pic of my CF and where I cut (V's for the curvature and Squares where the blanket seams are butted together). My CF was 48" wide and I cut 32" x 48" squares and installed horizontal. I took alot of care in cutting and fitting since I am doing an igloo and wanted to maintain the dome shape. If you do an enclosure then the fitting is not quite a critical. Can't emphasize enough to insulate, insulate, insulate.
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Old 04-17-2013, 11:43 PM
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Default Re: Cutting roll of insulation to fit dome

I found cutting equilateral triangle the best method, just lay them head to toe.
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Old 04-18-2013, 12:12 AM
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Default Re: Cutting roll of insulation to fit dome

I cut about 4 or 5 triangles for my first oven, which went from the base to the top, but found I had to belly the sides out in a curve so they would fit the curve of the dome. Straight triangles give you gaps between them when bent around the sphere.
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Old 04-19-2013, 07:48 AM
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Join Date: Jan 2010
Location: Wallingford, Vermont
Posts: 96
Default Re: Cutting roll of insulation to fit dome

I draped the blanket over/around the dome, then cut the wrinkles with a scissors-style hedge clipper - make a single cut and overlap the edges, or two cuts, remove the wedge, and butt the edges. Overlap the seams on successive layers.
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