What is the difference between rock wool sandwich panels, EPS sandwich panels and polyurethane sandwich panels?
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When the top of the ventilation tube can not be extended out of the roof, the following ventilation can be used: ①, set the side wall ventilation tube ②, by setting the confluence of the ventilation pipe after the extension of the side wall to extend above the roof ③, set up self-circulation ventilation pipeline system , the following circumstances should be set up ventilation riser: ①, when the drainage pipe to take the sanitary equipment drainage design flow than in Table 449 only set the top of the drainage pipe drainage pipe maximum design drainage capacity ②, the building standards require a high multi-storey residential and public buildings, 10-storey and 10-storey high-rise building life drainage riser , the following drainage pipe should be set up annular ventilation pipe: ①, connecting four and more than four sanitary ware and the length of more than 12m of the drainage pipe ②, connecting 6 and 6 or more toilet toilet cross pipe ③, do not exceed the above provisions, but the nature of the building is important, the use of high requirements or set the device when the ventilation tube , the health, quiet requirements of the building, the living drainage pipe should be set to ventilator tube , the drainage pipe at all levels of the building shall be provided with an annular ventilation pipe, and shall be provided with a main ventilation riser or a secondary ventilation riser for the connection of the layers , ventilation riser shall not accept the equipment of sewage, waste water and rain; not connected with the duct and flue
Can do the insulation that is the foam board, the so-called insulation of the extruded board with high Ji floating reed kill the devil ghost Tong Kankan Kun resistance, low linearity, low expansion characteristics of the structure of the closed-cell rate reached 99% Above, the formation of vacuum layer, to avoid air flow cooling, to ensure its long-term stability and stability, relative to the foam polyurethane 80% of the closed-hole rate, the leading advantage is self-evident
