When it comes to wall insulation, it can generally be divided into two types: external wall internal insulation and external wall external insulation. Among them, internal insulation has a better insulation effect than external insulation, and it wastes indoor space, which has been basically eliminated. The vast majority of houses nowadays use external insulation.
The external wall insulation system originated in Sweden and Germany in the 1940s. After years of practical application and long-term testing under different global climate conditions, it has been proven that it is a new energy-saving technology worth promoting and applying globally, whether in terms of the decoration effect outside buildings or the comfort level of indoor living.
Nowadays, external wall insulation buildings have become the most widely used energy-saving technology in developed countries such as Europe and America.
In addition, the use of phenolic insulation boards for external wall insulation has been proven to have the following important functions:
1. Protecting the main structure and extending the building’s lifespan
The external wall insulation scheme is adopted to buffer the stress caused by structural deformation due to temperature changes, avoid structural damage caused by rain, snow, freezing, thawing, dry and wet cycles, reduce the carbonization of concrete and steel structure caused by carbon dioxide and water in the air, and reduce the corrosion of harmful gases and ultraviolet rays in the air on the maintenance structure.
It has been proven that as long as the insulation materials for walls and roofs are selected appropriately and the thickness is reasonable, external insulation can effectively eliminate common diagonal cracks or splay cracks in the top horizontal wall.
2. Basically eliminate the “hot bridge” phenomenon and leverage the energy-saving effect of material insulation
The “thermal bridge” refers to the main channel for heat dissipation formed at the junction of internal and external walls, structural columns, frame beams, door and window openings, and other parts. For internal insulation, “thermal bridge” is unavoidable, while external insulation can prevent condensation at the “thermal bridge” area and eliminate heat loss caused by the “thermal bridge”.
3. Convenient for building decoration and renovation, avoiding damage to insulation layer caused by decoration
After a house is built and needs to be moved in, it is usually decorated to some extent. In indoor decoration, if it is an internally insulated building, residents who need to hang items or fix pipeline radiators will inevitably damage the insulation layer, which not only affects the insulation effect of the insulation layer, but also causes inconvenience to the decoration materials and use.
And external insulation can prevent such incidents from happening.
4. Beneficial to improving wall waterproofing, air tightness, and sound insulation effects.
Therefore, the external insulation of walls is highly necessary and imperative.
Post time: Jul-19-2023