The classification of exterior wall insulation and its main categories
1, exterior wall insulation usually(1) external thermal insulation of plate;(2) polyurethane rigid foam exterior insulation;(3) polyphenyl granule external thermal insulation;(4) inorganic insulation mortar external insulation;This is divided into small categories, such as sheet insulation, polystyrene board, inorganic insulation, expansion of glass beads2, rock wool exterior wall insulation, if there are rock wool board belongs to plate insulation, good combustion performance, good heat insulation performance, but relatively waterproof, bad, higher prices.Thin plastering exterior wall insulation does not indicate insulation material.Polyurethane insulation has been mentioned above, but the construction is not very convenient, and the combustion performance is poor and the price is higher.Polystyrene particles are good in every respect, and the only disadvantage is that the combustion performance can not reach the grade A (A1)
The second category is the engineering construction industry standards, external wall insulation engineering technical regulations. JGJ144 which includes five kinds of insulation system: the first is the EPS board exterior wall insulation system; second is the powder particles insulation slurry EPS exterior insulation system; third is the cast-in-place concrete wall of EPS board external insulation system; the fourth is a net cast system; fifth is the mechanical fixation of EPS steel wire the grid board exterior insulation system. With the existing external insulation insulation supporting standards, product standards and related engineering construction industry standards. The main supporting product standards are polymer based wall insulation glass fiber mesh; wall energy conservation project construction quality acceptance specification, that is, we know GB50411. Because most of these standards from 2003 to 2007 completed, but because of external wall insulation technology is developing very fast in recent years, the standard of life is short, basically all the standard in the revision, according to the development of technology, there are many standards are approved by the Ministry of construction, is being developed, the revision of the standard is JG149, the JG149 is the revision of the manuscript before the preparatory work. JG158 has just started the startup meeting and is preparing for the update.
The first is the product standard, the complete expansion of polystyrene board external insulation board system, this system in our country now use probably accounted for more than 62%, some statistics in 80%, because the statistics are not accurate, but it is the highest market share, is also the most mature external insulation system.
