Gizzy
A gentleman, a scholar, and a railway modeller....

You will need to get a weather resistant MDF, prime it with a PVA solution then paint.
I have a couple of Jacksons Minatures buildings made of MDF, and by carrying out the above as recommended, they have stood outside for several winters without deteriorating.
I would go for 6 mm max, as there is then sufficient weight to stop the building being blown away or toppled by animals....
I have a couple of Jacksons Minatures buildings made of MDF, and by carrying out the above as recommended, they have stood outside for several winters without deteriorating.
I would go for 6 mm max, as there is then sufficient weight to stop the building being blown away or toppled by animals....