What is the function of an architectural sealant?
The primary function of an architectural sealant is to prevent the elements, wind, rain, heat, cold, etc…, from penetrating the skin of a building. The sealant must be capable of maintaining an impenetrable seal while at the same time allowing for thermally induced movement between dissimilar and similar substrates. The sealant must also be resistant to degradation caused by exposure to ultraviolet radiation, water, and heat. A secondary function would be to create an ascetically pleasing line at building substrate interfaces.
