Build in the eaves by the conservatory

[MartenSvensson]

Hello.

I am in the process of building a sunroom and have some questions about what to do with the eaves, the exterior wall with ventilation. We have also raised the roof so that it connects a bit higher up.

The sunroom is insulated in the floor, roof, and walls, and has spring/autumn glass. It will be occasionally heated on some weekends.

1. Should I allow outdoor air to come in from the sides for ventilation? The ceiling will be built along the green line with beadboard. If so, the outdoor air will enter where the blue line goes. (Image 1).
2. The air from the house wall, does it need to be able to "vent" upwards, or can I seal all these holes against the area above where the batten was? There will be horizontal paneling over this wall later (Image 2).
3. Can I seal between the wall and the nailing battens from the outside? I’m thinking to prevent cold air and pests from coming in. Corner boards are also over it, so drafts might not be a concern. (Image 3).

Best regards,
Mårten

 

[Hallonbåten]

Hello.

I'm in the process of building a conservatory and have some questions about what to do with the eaves, the outer wall with the ventilation. We've also raised the roof so that it connects a little higher up.

The conservatory is insulated in both the floor, roof, and walls, along with spring/autumn glass. It will be sporadically heated on certain weekends.

1. Should I let outdoor air come in from the sides for ventilation? The ceiling will be built along the green line with beadboard. If so, the outdoor air will enter where the blue line goes. (Image 1).
2. The air from the house wall, does it need to "vent" upwards, or can I seal all these holes against the space above where the lock battens have been? There will be a horizontal panel over this wall (Image 2).
3. Can I seal between the wall and the nailing batten from the outside? I'm thinking to prevent cold air and pests from getting in. Corner boards are already above, so draft might not be a concern. (Image 3).

Best regards,
Mårten

Install mold prevention on the underside.

 

[brumbjorn]

The outer wall of the sunroom will not be subject to any rain or moisture load and therefore essentially needs no ventilation. I guess you shouldn't seal it completely, allowing a few millimeters of air circulation in the inner room should be more than sufficient. Sunrooms generate moisture and heat from people. If you let that air rise to the attic where it condenses, you might have moisture problems there. Sealing up and ventilating the roof with the mold stopper mentioned above seems reasonable.