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David WE Roberts David WE Roberts is offline
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Default Temporary (1-2 years) roof covering?


"Owain" wrote in message
...
On 13 Sep, 15:48, "David WE Roberts" wrote:
If the answer is to put on a wood roof covered with roofing felt
(standard
for sheds), then put battens over the whole thing and put tiles on top,
then
that might be an option but again may not hit the 'cheap' button.


It is, and (apart from the roofing felt) is how roofs are constructed
in Scotland, with sarking boards.

Have the tiles to be laid on battens or could they be nailed to
sarking boards?

Using sarking boards strengthens the roof so you might save a bit on
rafters, and something cheap like OSB off building site hoardings
might be good enough. And would mean you could have a nice
weatherproof loft to the shed.


With you up to the loft bit. This is a single pitch sloping roof not an apex
roof.

I expect to use reasonable depth rafters so I can get some insulation up
between them. I am limited on total height by the current regulations - at
least by the dimensions I have to meet if I don't require buildings
regulations approval.

Board over the rafters should help weather and draft proofing but is an
extra layer with extra cost.

Tiles are big sod off wavy things with a lip at the top to hook over a
batten. This lip has a nail hole at right angles to the main tile i.e. you
nail it through the lip into the side of the batten with the nail parallel
to the main tile. As far as I can see I have to use battens or the tiles
will not lie right.

Can you get second hand OSB?
Or is the new stuff cheap enough?
2440 * 1220 (8' * 4') for £18.56 at B&Q

Coroline in £183.99 for 15 sheets of 2m * 950mm (effectively 2000 * 750 when
you allow for the 200mm overlap).

Calculator tells me that coverage by OSB is 1.984533333 times that of the
Coroline.

2 sheets of Coraline cost £24.53.

Hmmm.....18mm OSB is cheaper than Coroline and probably more robust - have
to pay for the roofing felt as well but a felted roof on OSB should come in
as cheap as a Coroline roof.

When the tiles come free, I then get a tiled roof over the felt which should
last a lot longer than a felt roof!

Looks like a plan - but can anyone come up with something even cheaper?

Cheers

Dave R

P.S. just checked on sarking boards and it says you can lay the insulation
on top of the sarking then lay the tiles on that. Not sure about this -
might be too fancy for a simple shed.