Pizza Oven Insulation Vermiculite

A cement mixer will destroy the vermiculite down to a powder making it a useless insulator.

Pizza oven insulation vermiculite.

25kg of portland cement or cement fondu approx. The insulation can be made out of a number of different materials which are refractory heat resistant and have insulation properties. Even it helps to add another insulating material on pizza oven. 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.

Vermicrete is a very light concrete and the rule of thumb for insulation is the lighter the better. Vermiculite is mixed with cement at different ratio and applied on oven dome hearth and top of the oven roof as insulating material. And to make damn nice pizza. Vermiculite insulation for pizza oven dome.

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. 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. 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. The dome is formed by applying the concrete over a spherical mold commonly an exercise ball and leaving it to dry.

Put your water in the mixer add first 50 litre bag of vermiculite. 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. 1 part by volume 40 50 litres of water. It works as good and very effective insulator in pizza oven.

How to mix vermiculite concrete materials needed. At this stage the mixture should be a wet. Vermiculite is used to insulate oven dome. Pros and cons of vermiculite or perlite.

100 or so recycled bricks 250kg pottery clay i got mine from a local pottery equipment supplier who. 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. Rado hand reckons a one inch layer of vermicrete has the same insulation properties as 20 of concrete. 6 parts by volume.

100 litre or 2 x 50 litre bag of dineen vermiculite approx.