How long is the age of the external wall insulation board used?
Generally considered to be in about 20 years, the decorative surface is very long (50 years), the key is based on different years of insulation and different!
External wall insulation board itself, the useful life of 50 years no problem, the key is the construction quality. If the construction done better than 30 years no problem, if not doing well, 10 to 15 years will not have any problems.
