Either or! What do you think about the attic's suitability as a cold roof for storage? We made the cold roof accessible, but it is absolutely useless as a storage space for clothes and such. In summer it is unbearably hot and in winter unbearably cold. Apart from all the critters that fall down in masses when I open the attic hatch once a year to check if everything is okay up there. From my point of view, this is only an emergency storage room for building materials.