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-   -   portland cement to vermiculite (http://www.fornobravo.com/forum/f17/portland-cement-vermiculite-7341.html)

istoven 07-27-2009 09:14 AM

portland cement to vermiculite
 
whats the mix ration porland cement to vermiculite for the below floor isalation layer.

dmun 07-27-2009 09:45 AM

Re: portland cement to vermiculite
 
complete instructions:

Pompeii Oven | Brick Oven Hearth

Wiley 07-27-2009 09:52 AM

Re: portland cement to vermiculite
 
Some have used ratios as rich as 5 to 1 and many of us have used 9-10 to 1. I used 9+ to 1 using the slurry method (cvduke's method) and had no problems using that lean a mix. Do a search with "cvduke" in the search box and you should get his thread on the method.

The leaner the mix the better the insulation value for a given thickness.

Hope that helps,
Wiley


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