Pizza Oven Insulation Vermiculite

How to mix vermiculite concrete materials needed.

Pizza oven insulation vermiculite.

It works as good and very effective insulator in pizza oven. A cement mixer will destroy the vermiculite down to a powder making it a useless insulator. Many do it yourself pizza oven builders as well as importers of authentic italian brick ovens are big advocates for using vermiculite or perlite mixed with concrete. Generally the insulation is either fire blanket which is a material usually used.

Vermiculite is mixed with cement at different ratio and applied on oven dome hearth and top of the oven roof as insulating material. If you want to add the vermiculite concrete insulation you should wrap chicken wire around the oven leaving 3 4 of space for mortar layer. The insulation can be made out of a number of different materials which are refractory heat resistant and have insulation properties. A vermiculite pizza oven is one that is made from a concrete composed of the coarsely ground highly insulatory mineral vermiculite and a refractory cement suitable to withstand high temperatures.

1 part by volume 40 50 litres of water. Vermiculite insulation for pizza oven dome. How tobuild a high temperature pizza and bread baking oven from easily obtainable materials and avoid the use of expensive refractory bricks and to get it to heat as quickly as possible get maximum benefit from your fuel and use basic tools. Vermicrete is a very light concrete and the rule of thumb for insulation is the lighter the better.

25kg of portland cement or cement fondu approx. Pros and cons of vermiculite or perlite. Even it helps to add another insulating material on pizza oven. Vermiculite is used to insulate oven dome.

The dome is formed by applying the concrete over a spherical mold commonly an exercise ball and leaving it to dry. Rado hand reckons a one inch layer of vermicrete has the same insulation properties as 20 of concrete. In my case i used mortar and stone. These builders will use a 5 1 6 1 or 7 1 parts insulator to one part concrete to build their hearth and skin the pizza oven dome.

100 or so recycled bricks 250kg pottery clay i got mine from a local pottery equipment supplier who. 6 parts by volume. Put your water in the mixer add first 50 litre bag of vermiculite. At this stage the mixture should be a wet.

That doesn t work as efficiently as vermiculite but still adds a new later of insulation and protection.