As you will know from my earlier thread "Size of a double garage", I am -
planners permitting - hoping to have a detached double garage built at the
front of my property.

I have established that, provided it has a floor area not exceeding 30 M^2,
and is made of non-combustible material, it will be exempt from building
regs. This is fine from a fees point of view, but also means that it won't
have a BCO making sure that it's built properly!

I would like to be able to use it from time to time as a workshop, without
requiring too much heat input - which means that it requires a reasonable
degree of insulation. I would appreciate your views on this.

WALLS
Should they be of cavity construction, filled with insulation - or single
brick with some exotic material or other fixed to the inside? What is the
effect of the choice on the ability to fix things to (e.g. shelves) or hang
things (e.g. ladders) on the walls?

DOOR
I rather fancy an automated roller door - like the ones made by Henderson et
al - with double skin aluminium which is foam filled. Does anyone have any
experience of these? Are they robust and reliable? What are their thermal
properties?

FLOOR
It will have a concrete floor. It would be nice to have some form of
insulation (rigid foam or whatever) under the concrete - but is this
practical, bearing in mind that it needs to take the weight of two cars?

ROOF
I'm currently undecided about a flat (felted) or pitched (tiled) roof.
What's the best way of insulating it? I'd rather like exposed beams from
which I can hang things - and to make use of the available storage space if
I go for a pitched roof - but still need to get some insulation in
somewhere. Any thoughts?

ELECTRICS
Haven't really thought about them yet, but I shall need some light and
power. I assume that they will have to be Part P compliant, even if the
structure is exempt from building regs?
--
Cheers,
Roger
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