.

Also to know is, what is the best type of pipe insulation?

Tubular rubber insulation is offered with and without self-seal adhesive. Arguably, self-seal rubber insulation offers the best value for the price. It is more durable and energy efficient than other pipe insulation materials, and it expands and contracts as temperatures shift.

One may also ask, what does pipe insulation do? Polyethylene is a flexible plastic foamed insulation that is widely used to prevent freezing of domestic water supply pipes and to reduce heat loss from domestic heating pipes.

Regarding this, is insulating pipes worth it?

With the benefit of pipe insulation, the hot water waiting in your pipes will cool down slower. Quality insulation can add a few degrees to the actual temperature of household water, so if you like things especially hot when you're showering or washing the dishes, pipe insulation is well worth the expense.

Which is better foam or fiberglass pipe insulation?

If you are talking about potable hot and cold water plumbing my preference is foam, does a better job insulating and in the case of cold water sweating pipes will saturate fiberglass insulation reducing its effectiveness. For heating systems I defer to Lurch77 as they operate at higher temperature.