I'm comparing pre-built sheds that are delivered and set-up and wonder
whether vinyl siding is a good idea for a garden shed that would be
storing lawn equipment and tools.
The vinyl sheds have a type of sheathing and are insulated, whereas the
aluminum sheds seem stronger but have no sheathing and are not
The shed company's website says the insulation is "structural grade
thermo-ply" which sounds like a type of board insulation? Would this
also likely be the sheathing to which the siding is attached?
The Thermo-ply is attached to the studs/framing. Then the siding is
installed over the Thermo-ply using nails that go through the Thermo-ply
and into the studs/framing.
I no not believe that it has much if any R/insulation value.
The faq at the Thermoply link you provided lists the R value for Thermoply at
0.2 to 3.5. That is much more reasonable for a product that is only 1/8" thick.
Even the 3.5 sounds dubious, they must be rating it like a radiant barrier.
Here's a link to the shed website showing their claim of R-11 under the
"wall framing system" section:
In any case, I live in South Florida and this Thermoply doesn't sound
like it would provide much strength in hurricane force winds. Already
lost one shed to a hurricane last year and don't want to have to
For Florida hurricanes you probably need a heavy concrete foundation
with rebar tying the block walls to the slab, with rebar thru the
blocks and the blocks filled with concrete, and a armored roof with
storm shutter as door. even then the building may not survive:(
disney builds their attraction buildngs with steel superstructure and
how many thousands do you want to spend on the shed?
Nothing will hold up in a direct hurricane, except possibly a solid
concrete shed. However, you might consider building your own on a
concrete slab with 2x6 walls securely bolted to the slab. Then cover
it with barn steel sheets. Be sure all the corners have 1/2" pkywood
triangles well nailed for to the inside walls for strength, and use
hurricane straps on all roof pieces (available at lumber yards).
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