Surface grooving of extruded boards has more advantages than disadvantages for extruded boards. Here we can analyze from the following aspects. The main function of extruded boards is thermal insulation. Then we can find two extruded boards to compare their thermal insulation effects with and without grooving. From a theoretical perspective, it actually does not change much. Because of the relationship between grooving and non-grooving, non-grooving can fit the surface to be insulated as a whole, while grooved boards have about 3% of the area that cannot fit the insulation surface. But this will not have much impact on thermal insulation and heat conduction. And grooving and non-grooving, in addition to having negligible impact on heat conduction and transmission, there is also a direct physical impact, which is the fixing of extruded boards.
The fixing of extruded boards is very different from smooth and rough surfaces. Smooth extruded boards have poor adhesion and are easy to peel off, while rough extruded boards have much better adhesion effects. Especially on the adhesion surface using glue or bonding mortar, glue or mortar can penetrate into the small holes, forming a relatively firm bonding layer to achieve the purpose of fitting.
In comparison, non-grooved extruded boards can be used for roofs and floors, but for external walls, it is still recommended to use grooved extruded boards.
There are many types of external wall construction for extruded boards. Some use insulation nails for fixing, some use galvanized steel frames for fixing, and some use galvanized mesh for fixing. Of course, no matter which fixing method is used, the subsequent effect is to allow the extruded board to firmly fit the wall.
Therefore, as the construction party, you can judge whether to use grooved or non-grooved according to the location of use to meet the needs of the construction site.
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