[presently no screen name]

Non-Mormons are not allowed into the temple buildings after they are sealed

Do you mean until you are sealed?
Why would a non-mormon want to go into their temple buildings? You mean as a tourist?
And what does sealed mean?

[reaganaut]

After a temple is dedicated then non worthy mormons are not allowed in.

A ‘sealing’ is another word for a marriage.

Also children are ‘sealed’ to parents if the parents were not married in the temple prior to the children being born.

Mormons believe that the family unit continues on in the next life.