Shed wrap and insulation - what's necessary?

[dtbingle]

Moving to the new house in just over a month and browsing over a few basic 10x12 shed designs. Decided on a gravel base, pressure treated 4x4 skids, with 2x4 framed floor and plywood surface, and gable roof with shingles. Where I'm getting stuck on is what's recommended as far as insulation, moisture barriers, venting, etc. Michigan climate with no plans for climate control. The shed would be for storing lawn equipment, off-season tire sets, and other garden tools.

1) Should housewrap be used on outside of wall sheathing?
2) Should interior vapor barrier for walls be used?
3) What roof venting is needed? Would a gable roof vent on each end suffice? Or ditch the gable vents and go with ridge vent? Or both?
4) Any vapor barrier required for floor and what layer of the floor construction should it go? All floor joists, plywood, skids will be pressure treated lumber.
5) Should landscape fabric be laid under the gravel base?
6) Any point to add standard pink fiberglass insulation being not climate controlled?

 

[GYPSY400]

Insulation is not required in something you are not going to heat or cool... it's a shed! It just needs to be dry, but not air tight so it doesn't hold condensation.. so allow for air to get in ( usually through the doors that don't seal well) and allow air to get out ( small gable vent )

The only thing I would do is the fabric under the gravel

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[Leaflessshadetree]

Normal roofing paper under the shingles, seems like tar paper was the old norm but I've noticed a variety of newer materials being used.
If the sheething is the siding (I wouldn't use regular plywood) then nothing else is needed. With plywood sheething I'd use a moisture barrier between it and the siding.

 

[tjdux]

1. House wrap will help keep your sheething dry under the siding. It's probably worth the cost.
2. Interior vapor barrier really only applies to insulation and climate control whichnis pretty pointless for this shed.

3. Either gable or Ridge vent would be fine or both even just make sure you have something.

Also vented sofit may not hurt to keep fresh are moving in so the heat can escape.

4. Not needed

5. I don't see the point in landscape fabric since the building will block 100% of the sun nothing will grow anyways.

The edges of the buiking may benift from some plastic or landscape fabric to keep stuff from growing up right near the edges of the building but that's really just for landscaping purposes.

6. Same as #2. No.

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