Old 06-01-2009, 08:57 PM
Join Date: Dec 2008
Location: Chula Vista
Posts: 29
Default Vermiculite or Perlite

Im almost ready for insulating layer. What should I use vermiculite or perlite. Someone said that perlite has more insulating value. Is that true? I thought I saw that perlite is cheaper than vermiculite at HD.
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Old 06-02-2009, 01:17 PM
Neil2's Avatar
Il Pizzaiolo
Join Date: Oct 2006
Location: Vancouver Island
Posts: 1,374
Default Re: Vermiculite or Perlite

I used half and half. I found it more workable than the straight vermiculite.

1 part cement to 6 parts vermiculite and 6 parts perlite. Just enough water to make it workable. Mix the water and cement separately then add to the vermiculite / perlite very gently to avoid "breaking down" the particles.

Make sure you get the coarse perlite.
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Old 06-02-2009, 04:21 PM
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Join Date: Oct 2008
Location: Port Saint Lucie, FL
Posts: 114
Default Re: Vermiculite or Perlite

I couldn't find vermiculite so I used perlite. It was easy to mix with cement and worked well for insulation. It insulates my oven extremely well.
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