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Hi
I have a detached garage which is fairly 5 years old. It is built in a single course brick (apart from the gable and piers). I keep my classic car in there and use it as a workshop. My problem is that when I heat the garage from cold I naturally get condensation which soaks my beloved car and tools etc. I have a dehumidifier but it's not much help really.

I need to know the best way to insulate against this and it seems that something like Gyproc Themaline might do the job?

If this is correct, should it be fixed by dot and dab or battens?
Should the exterior wall be fitted with vent bricks to allow the new cavity to dry?
Any advice would be appreciated
Cheers
Mark

markandjac,
Fix the boards to the walls using treated battens, use treated timber at the bottom of the boards to keep them off the floor and ventilate the cavity. Keep using the de-humidifier.
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Should have added that you need to use segmented battens to aid ventilation and probably 2 low level and 2 high level vents on ech side of the garage.
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insulation will not stop the condensation - in fact it could heighten the problem by trapping the damp.
the way to stop the condensation is cross-ventilation. get that sorted before insulating.

Thanks for the guidance Stoneyboy.
Mark