①When laying glass wool roll felt, the veneer faces the indoor side and is perpendicular to the purlin. Leave an extra 20 cm roll felt at one eave, and fix it on the outermost purlin with a special clamp or double-sided tape;
②When unwinding, ensure that it is aligned and tensioned. Lay the glass wool roll felt on the other side of the eaves. Also, leave an extra 20 cm roll felt, and fix it on the outermost purlin with a special clamp or double-sided tape;
③The two rolls of cotton are connected together by using a stapler on the veneer flash;
④ Install the roof color steel plate, remove the fixtures at the eaves on both sides, and use the reserved 20 cm veneer to close the glass wool;
⑤Pay attention to keeping the tension and alignment of the glass wool roll felt and the joints between the rolls are tight. When longitudinal laps are needed, the lap joints should be arranged at the purlin;
⑥According to the needs of the project, in order to avoid the generation of cold bridges, some hard insulation materials, such as XPS, can be considered on the purlins.