Posted By cudink on 27 Dec 2013 07:54 AM
Thanks for all of the good info. We used a full subtop at a fairly large upper transaction top and the subtop was recessed at least 1 1/2″ from the edge all around. So far we have been doing it this way without any issues.
We have done this for 25 years without issue. Using silicone is a must and always leave that expansion gap between the two materials.
As long as it’s not in an area with a lot of heat producing appliances, you should be just fine.