Extracellular spaces in connective tissues are therefore more abundant and contain vessels. In connective tissues, the extracellular space is termed the extracellular matrix because products of specialized cells accumulate here.
'J' channels are even improperly used on Fiber Cement Siding! Note: The actual examples below are not indicative of every siding job with 'J' Channels. All photos below are from the same area on the same wall of one house. This is the northeast side of a home located about 2 blocks from the NJ shore.
That flaw is in the use of water collecting ?J? Channels. Decades ago, the metal exterior cladding products brought the ?J? Channel to the fore for exterior trades. These channels were thin and low profile, but the inherent problems with leaks were evident to the tradesmen that followed the exterior cladders.