back to board Main Page
Re: Slab & Frost heaves?
From the WFO board
Posted by Klaus
In Reply to: Re: Slab & Frost heaves? posted by Jim G.
Yes, you have certainly answered your own question! :-) EPS is also known as Styrofoam and is available in different grades. I have used EPS80, which seems to be the most commonly used type in Denmark - and 50 mm as recommended in "The Bread Builders". The necessary grade of EPS depend on the long-time load: With the estimated total weight of my oven (5-6 tons), I should be on the safe side with EPS80.
I doubt that 50 mm EPS provides effective frost-protection, so I have only extended the insulation 100 mm past the edge of the slab - but I still hope that the EPS can help a bit (and it does not add significantly to the overall cost anyway).
Jamie and Katrina's brick oven with temperature gauge, in Victoria.
Concrete blocks used for the oven’s outer walls. By Joe in Connecticut USA
Wood fired family oven and chimney project by Robert in Austria
My oven with fireplace, cook food and heat water, by Joel in Philippines
Baking sourdough breads in quantity in Canada
Pizza oven and hut built by Tony in Philippines