It could be a number of reasons. Has any of your pipes frozen? Are all of the water valves turned on? Did you pay your water bill?
yes
Usually you should if your pipes are at risk of freezing. (i.e. you live in a cooler climate and the house has no heat.) The reason for this is that even though your pipes are drained, there is still water in the low spots, which when frozen will expand causing pressure build up. If the air has no where to go it could cause a crack and probably some water damage when ever you do turn on the water. }th0rn{
choir members in your pipes
replace the fill valve
depends on what type of piping you are talking about. Are you talking about frozen pipes bursting or High temps??
You may know if a frozen pipe bursts if you see a sudden decrease in water pressure, notice water pooling or leaking around the pipe, or hear strange noises coming from the pipes. In severe cases, there may be visible cracks or holes in the pipe.
You should always check for pipes by hand, many pipes are PVC and will not show up on a metal detector.
There is no such unit of measurement as the "pipe".
Pressure has nothing to do with pipes freezing. It is just exposure to cold.
is it condensation possibly.
Duple.