Refractory boards are used to provide thermal insulation for stoves and fireplaces. They retain heat, preventing its loss.
The concept of refractory boards
Refractory stove serves to protect the room from high temperatures when heating stoves, fireplaces. The principle of its work is associated with multi-layer.
In most cases, the plates are used simultaneously with a stainless steel screen. A fireproof plate is glued to the wall surface using special mastic. In some cases, an air pocket with a thickness of up to 3 cm is left between the wall and the stove. A stainless steel screen is installed with the outer layer adjacent to the furnace.
Fire retardant materials
Refractory board can be made of various materials. It can be both well-known to all and proven over the years options, and made taking into account innovative discoveries. Among the variety of materials, the following can be distinguished:
- Asbestos is one of the most common materials. It remains strong when heated to a temperature of 500 degrees. Fireproof plates for fireplaces and stoves, sheets for protecting walls, ceilings and individual objects from fire are made from it.
- Vermiculite is a neutral insulator. Material popular with customers. It is characterized by high fire resistance and excellent thermal protection properties. Therefore, it can be used for protection against direct fire or as a spark arrester.
- Superpower is an innovative material. It is made of silica. A layer of material with a thickness of 6 mm withstands temperatures above a thousand degrees. It is believed that this indicator is due to the fact that for the first time this material was developed for the military. Today it is used for thermal insulation of stoves and fireplaces of all kinds.
Types of plates
Thermal insulation materials are made in the form of plates of various sizes. The following fireproof plates for stoves and fireplaces are widely used:
- Fiber-cement boards, consisting of synthetic fiber without the use of asbestos fiber.
- Asbestos slabs (cardboard) made from asbestos. Withstand mechanical stress, alkali and a temperature of 500 degrees.
- Basalt slabs are used to protect against temperatures above 900 degrees. Environmentally friendly.
- Minerite plates are universal in their application. Do not burn, are not exposed to moisture, bacteria, mold, shockproof. In addition, they are a good sound absorber.
- Glass-magnesium plates, consisting of fiberglass.
- Decorative vermiculite boards are distinguished by applying a texture to the surface of the sheet.
Fireproof stove "Flamma"
Speaking of materials for protection against fire, mention should be made of Flamma fireproof plates. This type of material is produced strictly according to Finnish technology.
Refractory stove "Flamma" has the following advantages:
- Durability.
- Fire resistance. Belongs to the highest class of NG.
- Heat resistant. Withstand temperatures up to 150 degrees.
- Good soundproof performance.
- Moisture resistant. Does not change its characteristics under the influence of moisture.
- Can be washed and rinsed. When using chemicals, it is recommended to treat the surface of the slab with siloxane or other concrete impregnation.
- Resistance to alkaline and neutral solutions, organic substances. But it is destroyed by interaction with acidic substances.
- Resistant to mold and mildew.
- It does not rot.
- Easy to install.
Flamma slabs are made of cement with the addition of mica, limestone and cellulose fibers. The material does not emit hazardous or harmful substances, is safe for people and the environment.
They have a gray-beige color with a splash. The surface is smooth. The edges are smooth, not beveled. Plate thickness 9 and 12 mm. They are mounted end-to-end.
A fireproof plate will protect the room from fire and accidents. Therefore, when building stoves or fireplaces, be sure to consult a specialist. He will help you choose the right thermal insulation option. In cases where the heating elements are too close to the wall, the use of refractory materials is mandatory. Therefore, even at the planning stage, it is recommended to study the regulatory documents on this issue.