One, the warranty period for fire-resistant doors and windows
National standards do not specify the shelf life of fire doors and windows. This depends on the specific usage conditions. Generally, manufacturers offer a product warranty period of 1 to 2 years, with 1 year being the most common.
Two. The typical lifespan for fire doors is how long?
Common fire-resistant doors typically have a lifespan of around ten years. However, there are certain situations where this may not be the case, such as fire-resistant doors that are kept closed. Due to frequent use, these doors are likely to experience significant damage, which will also shorten their lifespan. Additionally, there are also doors that have been exposed to fire but show no visible damage on the surface. In such cases, these doors should be replaced, as the absence of surface damage does not necessarily indicate that the internal structure is intact. If the internal material has been affected by the fire, it can significantly compromise the fire-resistant performance.