insulating a shed

[pushkins]

You may notice some condensation with extreme swings in day to night temps. in season changes but they would be too few to worry about.

[HayZee518]

If its not heated or people living space why insulate it?

[hillbillyjake]

I recently built a 12 x 16 shed on a 4" concrete sled. Put a 6' x 7' roll up door in it. I did insulate the ceiling with 4" fiberglass insulation I had left over from a previous project. Roof does have vents and vented sofit. I plan to keep my rider mower, push mower, tiller, etc, in it year round. Temp extremes are 100+ in summer and -5 in winter. Question is, should I insulate the walls. I am putting 7/8" OSB on interior walls. Exterior is OSB, house wrap, and vinyl siding. Didn't know if the hollow cavity between interior and exterior could develope moisture. please advise, thanks!