I really don't see an issue with the rooflines. Looks like the angles are fairly similar and the clean lines of both structures should be easy to coordinate, especially in your open, rural setting. Since you've found a stunning deal, I would say, go for it! I definitely would want to find an architect ASAP and by all means, before you pour the slab, make sure you have a plan to coordinate.

This is a similar home. Does the architect's response help you? "Yes the soffit is painted ( Resene Bokara ) to make it similar to the cladding. We did it this way in order to emphasis the sculptural form of the house - if it was white it would have broken up the form somewhat. I think it depends on what you want to achieve, if the line of the joinery is at ceiling level then it is good to have the ceiling and the soffit the same colour in terms of how you experience the interior space. If the exterior look is more important then the dark soffit would probably work better."

Debating replacing a 10 degree roof with a 45 degree roof to optomise going off the grid. Building is 9 metres wide [includes 500 eaves] by 12 metres long. We would increase the length to 16 metres to cover an existing deck with ancient corrugated plastic roof. Question is cost. We have the room to build the roof on site and crane into place otherwise make it offsite. We would need to put a couple of windows in length to give character. We would use dark grey ribbed coloursteel ideally and reclad south and west walls with the same material. Does anyone out there have an opinion?

Nearly finished painting my cottage and I am wondering what colour roof I should go for? I could refresh a brighter red (Resene Pioneer Red or Scoria are available) or go for a charcoal gray to match the trim?f thoughts?