The application of lightweight insulating brick in building external wall thermal insulation has remarkable energy-saving effect and construction convenience. The following are the specific usage methods and construction techniques:

I. Composition of external wall insulation system of light insulating brick

(1) Basic treatment:

Clean the external wall of the building to ensure that the surface is clean and smooth, and there are no impurities such as oil pollution and dust.

(2) Thermal insulation layer:

Lightweight insulating brick is used as the thermal insulation layer, which has excellent thermal insulation performance, and can effectively prevent the heat radiation of the sun in summer and prevent the indoor heat from being transmitted in winter.

The thickness of thermal insulation layer can be selected according to the local building energy-saving design requirements.

(3) Adhesive layer:

Use cement mortar or other special adhesive to paste the light insulating brick on the wall.

(4) protective layer:

Apply waterproof mortar or polymer waterproof caulking agent on the outside of the thermal insulation layer to enhance the waterproof and integrity of the thermal insulation layer.

(5) Decorative layer:

According to the design requirements, decorative treatment can be carried out on the outside of the protective layer, such as tiling and spraying real stone paint.

II. Construction Technology

(1) Construction preparation:

Technical disclosure shall be made to the construction personnel to ensure the construction quality.

Prepare light insulating brick, adhesive, waterproof mortar and other materials needed for construction.

(2) Basic treatment:

Clean the surface of the external wall, remove impurities such as floating ash and oil stain, and ensure that the grass-roots level is flat.

(3) Paste the light insulating brick:

Use cement mortar or other special binders to paste the lightweight insulating brick on the wall, and ensure that the gaps between bricks are uniform when pasting.

Brick joint treatment: fill waterproof caulking agent in brick joints, compact and smooth them to ensure the integrity and waterproofing of insulation layer.

(4) Construction of protective layer:

Apply waterproof mortar on the surface of lightweight insulating brick, the thickness is generally 3-5mm, to enhance the waterproof performance of insulation layer.

(5) Decoration layer construction:

According to the design requirements, decorate the outer side of the protective layer, such as tiling and spraying real stone paint.

III. Matters needing attention in construction

(1) Waterproof treatment:

In the process of construction, special attention should be paid to waterproof treatment to ensure the waterproof performance of insulation layer.

(2) Construction environment:

Construction should be avoided in rainy or hot weather, so as not to affect the construction quality.

(3) Quality control:

During the construction process, the sticking quality of bricks and the thickness of protective layer should be strictly controlled to ensure the integrity and waterproofing of insulation layer.

Through the above construction technology and matters needing attention, the application of lightweight insulating brick in building external wall insulation can effectively improve the energy-saving performance of the building and improve the indoor thermal environment, and has the advantages of simple construction and low cost.