Home » Functional Material » Building Material » BUILDING MATERIALS FOR WALL AND ROOF


building materialsThe building materials used for wall construction and roofing will determine the insulation and energy performance of your home. Consult your architect or builder on the best solution available to you, according to your budget, your region and your desires.

The walls

  1. Concrete block or concrete block

Although often decried, it is composed of natural materials (rock and sand mainly) available in abundance and recyclable. It is economical and durable but, to obtain good thermo-acoustic performance, an insulating lining is essential.

  1. Cellular concrete

Designed from sand, lime, cement and aluminum powder, this friable material emits a lot of dust during its implementation. This is controversial because the aluminum powder, used as an expansion agent, is potentially toxic for those who handle it daily.

  1. The brick

Full or hollow, the brick is a natural ancestral material (terracotta). More expensive than the breeze blocks, his energy performances play happily in his favor.

  1. The monomur brick

It has good energy performance but requires some know-how to be posed correctly. Thus, entrepreneurs offering this material are still relatively few.

  1. Wood and steel frames

They offer great architectural flexibility. Competitively priced, they allow to change the construction according to the needs. They are very popular in the low-energy home sector.

  1. Hemp concrete

It has excellent thermal and hygrometric characteristics (measurement of the degree of humidity of the air). Highly ecological, its raw material (chènevotte) comes from the waste of the paper industry.

  1. The straw boot

It comes from agricultural waste (oats, wheat, barley …). Versatile material, it is used as well to build walls as wall insulation.

  1. The block of wood

It is made exclusively from local waste wood (hardwood and softwood). The blocks exist in several formats, of single or double type, the latter being adapted to the realization of passive houses.

The roof

  1. The tile

While there are many different types of roofs, tile is still the most common roofing material with more than two-thirds of the hexagonal houses displaying its beautiful terracotta colors.

Indeed, the terracotta tile is solid. It also offers many aesthetic possibilities (about 150 models), both in terms of shape (flat, channel …) that colors (more or less clear, from orange to black). Regularly maintained, a tiled roof will age well.

The channel tile and the flat tile are the most used. The first is ideal for roofs with a low slope, but requires a solid frame capable of supporting a significant weight.

Closer to slate, the flat tile is lighter and adapts to any type of structure.

There are also more “gourmet” format tiles, such as the large mold tile with its curvaceous shape; or tiles more discreet, but just as charming as the one with low curve or ribs.

  1. slate

Slate is a natural and elegant stone that resists the vagaries of life. Non-porous, incombustible and insensitive to frost, slate is a good investment for a durable roof (more than 150 years for good quality slates).

Be aware, however, that slate is relatively expensive and requires a robust frame.

  1. Thatch

Thatch is usually wheat, rye or reed. It is also incombustible and waterproof. It provides exceptional sound and thermal insulation. This technique requires maintenance every 3 to 5 years to keep its tightness.

  1. The wooden tiles

Little used, this material should be very successful in the near future given its cost price (about 35 $ / m).

  1. The green roof

The green roof (also called green roof, ecotoit or green roof) consists of covering the roof, flat or low slope, with soil and a natural vegetal layer. In addition to its aesthetic appearance, its filtration and natural purification capabilities make it possible to limit the massive inflow of rainwater into the sewers and regulate the atmosphere by reducing the CO2 content through photosynthesis. Make sure you have the necessary permissions to build such a roof.

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