| In order to burn well the pipe should be about 2 meters (approx. 80 inches) in height. The loam must be allowed to dry before continuing. This will take 2 to 3 weeks depending on the weather. It is essential to protect the loam from rain but situate the protective covering to allow the passage of air over the loam to ensure that drying continues.
When the first loam layer is dry the second layer can be laid on. At this point I started to design the oven opening. I used clinker brick again for the oven door arch and mortared well with loam mixture. A second layer of loam mixture is laid over the entire dome. Press it on and rub it smooth. For the second layer straw/chaff is added to the loam mixture.The loam now has to dry again, this time for about 3 weeks. During this time you can start construction on the protective roof.
This guide does not offer detailed roofing instructions. The roof can be designed to take advantage of local materials. This guide presents variations of a roof in three different sizes. You may want to seek the services of a professional carpenter or roofer for this portion of the project.
When the second layer has dried add a third layer of loam and allow to dry again. After the third layer of loam is dry and hardened I removed the oven opening form. A shovel is used to remove the dirt form from the dome. Now the oven is prepared and smeared inside with loam and should be allowed to dry again. Any tears that develop in the loam should be filled with loam mash. |