Attached Greenhouse / Conservatory

We are planning a project on the coast in CZ6.

The proposed new house is attached to an existing house by means of a conservatory or greenhouse.

We are assuming the floor will be some kind of crushed stone base to promote drainage when watering. Thus no slab and likely no vapor barrier. This space will be unconditioned. If this is actually used as a green house this space is going to create an awful lot of moisture. With all the glazing it’s also going to see big temperature swings.

Has anyone detailed these before? My main concern are the exterior walls of the conditioned homes that attach to the green house. The green house itself is mainly masonry, metal and glass. The attached houses are wood framed and clad.

Appreciate any input

 

I’ve seen attached greenhouses in CZ6 work well as long as you keep the thermal boundary clear and avoid letting that space become a big heat sink. Good air sealing and a buffer door help a ton. Looking at setups on https://fullbloomlightdep.com/ gave me a few ideas about managing solar gain and ventilation, even though they build for larger ag projects. Their control strategies translate pretty well to smaller residential spaces.