Using 4 year old cat5e cable

Before moving into my current home I had most of the rooms fitted with cat5e infrastructure cabling and have plenty of cable left over from a 305m reel. There'll be building work in future (basically converting a kitchen/dining room into one large room) and I'll be installing a number of network points as part of that work, my question is, is it okay to use the left-over cabling or should I get a new reel of cat5e?

If it tests as still working then no real issues

No problem unless you have opened the box completely and left it exposed to the sun which tends to break down the outer sheath.

Lasts years as long as not left exposed to the elements as has been said.

Right on cue ...

Today I received an email which included a section on cables damaged by internal lighting - the light radiated and not heat from the fitting. Have a look at this image of what is probably alarm or control cable, which uses a similar outer sheath to Cat5e.

http://edmundson-electrical.voltilink.co.uk/sites/ed...

Thanks to all for your helpful responses, the cable is stored on a roll in it's box in the garage (which is dry and never gets very cold) so it'll probably be okay then.

Thanks again.