Pizza Oven Insulation Vermiculite

Vermiculite insulation for pizza oven dome.

Pizza oven insulation vermiculite.

6 parts by volume. Put your water in the mixer add first 50 litre bag of vermiculite. Rado hand reckons a one inch layer of vermicrete has the same insulation properties as 20 of concrete. Vermiculite is mixed with cement at different ratio and applied on oven dome hearth and top of the oven roof as insulating material.

The dome is formed by applying the concrete over a spherical mold commonly an exercise ball and leaving it to dry. And to make damn nice pizza. 100 or so recycled bricks 250kg pottery clay i got mine from a local pottery equipment supplier who. That doesn t work as efficiently as vermiculite but still adds a new later of insulation and protection.

At this stage the mixture should be a wet. Pros and cons of vermiculite or perlite. How to mix vermiculite concrete materials needed. 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.

25kg of portland cement or cement fondu approx. Vermiculite is used to insulate oven dome. 1 part by volume 40 50 litres of water. 100 litre or 2 x 50 litre bag of dineen vermiculite approx.

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. Generally the insulation is either fire blanket which is a material usually used. It works as good and very effective insulator in pizza oven.

Vermicrete is a very light concrete and the rule of thumb for insulation is the lighter the better. A cement mixer will destroy the vermiculite down to a powder making it a useless insulator. A wood fired pizza oven requires an insulation lay on top on the initial internal dome of bricks and under the hearth so as to improve the heat retaining properties of the oven. 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.

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.