Posted by john brook on July 4, 2011, 10:49 am
We have a sheet steel garden shed, and with any sun at all it gets
unbearably hot inside.
We put up polystryene slabs under the roof, but that was to stop the
condensation dripping down inside in the winter. It does not help with the
problem of the shed getting too hot.
Grateful for any suggestions as to best how to keep it cooler in this warm
weather, please.
Trying to cut out holes in that tin sheeting would I guess be a difficult
task, and I've no idea if it would be of much help? Thanks for any advice.
Posted by Martin Brown on July 4, 2011, 10:59 am
On 04/07/2011 15:49, john brook wrote:
> We have a sheet steel garden shed, and with any sun at all it gets
> unbearably hot inside.
> We put up polystryene slabs under the roof, but that was to stop the
> condensation dripping down inside in the winter. It does not help with the
> problem of the shed getting too hot.
There is a limit to what you can do in a small space without any
airflow. Paradoxically your best bet might be to glue aluminium foil
onto the underside of the polystyrene slab. This slows down ingress of
solar heat by making it harder for the polystyrene to radiate energy.
> Grateful for any suggestions as to best how to keep it cooler in this warm
> weather, please.
The other trick is to make the exterior partially or entirely self
shading by having a second outer skin on battens. Ivy works pretty well
as it includes its own airconditioning and looks better than sheet steel.
> Trying to cut out holes in that tin sheeting would I guess be a difficult
> task, and I've no idea if it would be of much help? Thanks for any advice.
Letting the hottest air out the top and allowing cooler air in at ground
level will help a bit. You want a vent that lets hot air out but doesn't
allow rain to get in.
Regards,
Martin Brown
Posted by clare on July 4, 2011, 2:39 pm
On Mon, 04 Jul 2011 15:59:24 +0100, Martin Brown
>On 04/07/2011 15:49, john brook wrote:
>> We have a sheet steel garden shed, and with any sun at all it gets
>> unbearably hot inside.
>>
>> We put up polystryene slabs under the roof, but that was to stop the
>> condensation dripping down inside in the winter. It does not help with the
>> problem of the shed getting too hot.
>There is a limit to what you can do in a small space without any
>airflow. Paradoxically your best bet might be to glue aluminium foil
>onto the underside of the polystyrene slab. This slows down ingress of
>solar heat by making it harder for the polystyrene to radiate energy.
>>
>> Grateful for any suggestions as to best how to keep it cooler in this warm
>> weather, please.
>The other trick is to make the exterior partially or entirely self
>shading by having a second outer skin on battens. Ivy works pretty well
>as it includes its own airconditioning and looks better than sheet steel.
>>
>> Trying to cut out holes in that tin sheeting would I guess be a difficult
>> task, and I've no idea if it would be of much help? Thanks for any advice.
>Letting the hottest air out the top and allowing cooler air in at ground
>level will help a bit. You want a vent that lets hot air out but doesn't
>allow rain to get in.
>Regards,
>Martin Brown
Ridge vents and screened opening in the base.
Posted by Baron on July 5, 2011, 12:27 pm
> On 04/07/2011 15:49, john brook wrote:
>> We have a sheet steel garden shed, and with any sun at all it gets
>> unbearably hot inside.
>>
>> We put up polystryene slabs under the roof, but that was to stop the
>> condensation dripping down inside in the winter. It does not help with
>> the
>> problem of the shed getting too hot.
> There is a limit to what you can do in a small space without any airflow.
> Paradoxically your best bet might be to glue aluminium foil onto the
> underside of the polystyrene slab. This slows down ingress of solar heat
> by making it harder for the polystyrene to radiate energy.
>>
>> Grateful for any suggestions as to best how to keep it cooler in this
>> warm
>> weather, please.
> The other trick is to make the exterior partially or entirely self shading
> by having a second outer skin on battens. Ivy works pretty well as it
> includes its own airconditioning and looks better than sheet steel.
>>
>> Trying to cut out holes in that tin sheeting would I guess be a difficult
>> task, and I've no idea if it would be of much help? Thanks for any
>> advice.
> Letting the hottest air out the top and allowing cooler air in at ground
> level will help a bit. You want a vent that lets hot air out but doesn't
> allow rain to get in.
> Regards,
> Martin Brown
What about the obvious - a turbine / roof ventilator? The hot air is
enough to keep them moving when the wind is calm. It should be possible to
seal it off from inside the shack during the winter to trap any heat
indoors.
Good Luck.
Posted by John Williamson on July 4, 2011, 11:04 am
john brook wrote:
> We have a sheet steel garden shed, and with any sun at all it gets
> unbearably hot inside.
>
> We put up polystryene slabs under the roof, but that was to stop the
> condensation dripping down inside in the winter. It does not help with the
> problem of the shed getting too hot.
>
> Grateful for any suggestions as to best how to keep it cooler in this warm
> weather, please.
>
> Trying to cut out holes in that tin sheeting would I guess be a difficult
> task, and I've no idea if it would be of much help? Thanks for any advice.
>
>
Painting it white could be a good move, as could putting a secondary
roof above the first with an air gap between them. Also, maybe a small
solar powered fan in a window or door might help.
All of these work quite well on Land Rovers.
--
Tciao for Now!
John.
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> unbearably hot inside.
> We put up polystryene slabs under the roof, but that was to stop the
> condensation dripping down inside in the winter. It does not help with the
> problem of the shed getting too hot.