Granite composite sinks install similarly to other drop in sinks with clips and caulk holding the sink in place on the counter.
Top mount sink over granite.
The biggest issue that most homeowners have with overmounts is the lip that hangs over the granite.
An undermount sink does have a rim but the rim is not visible because it rests up against the bottom of the counter.
Undermount sinks mount to the bottom of the countertop and are held in place by heavy duty clips and caulk or a special adhesive.
Cons of an overmount kitchen sink.
These sinks can be installed on any countertop material.
These are less expensive than an undermount and they are easier to install.
Models that are mounted beneath the sink can be used but they take more time involve a longer usually professional installation and are harder for a homeowner to install.
Many people believe they are unsightly when used on a countertop made of high end materials such as granite and marble because they cover the edges of that material.
An overmount kitchen sink is cheaper and easier to install than an undermount kitchen sink.
The edge of the countertop along the sink cutout is entirely exposed.
Crumbs and moisture can be trapped around the edges causing it to look unsightly and become somewhat unsanitary.
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