Mike Haasl wrote:Sweet project!!! A few questions/thoughts for you. What's the ceiling of the garage currently look like? Is it open to the roof deck? Are the soffits vented? Is there a ridge vent? Those questions get at ventilation when the sun is blasting into that space and the hops aren't covering the glass (Jan-June).
Mike Haasl wrote:The curvy shape is very pretty, but probably will increase the build time significantly. Would a simpler three facet design be worth considering? Main surface is a plane of glass at 20-30 degrees off of vertical, with a short vertical bit at the bottom and a horizontal bit against the building.
Mike Haasl wrote:Will you get much sun through the bottom-most panels? Might be cheaper or more durable if that section was solid. Snow will likely cover it all winter and the sun's pretty high in the summer.
Mike Haasl wrote:Is the plan to build a door? Getting a used one may avoid a lot of frustration with creating one. Ask me how I know...
Mike Haasl wrote:Could you make it bigger? Extend to the south another 10'? The flattish roof would have to hold snow but it would give much more room for interior activities.
Travis Johnson wrote:I believe there is a lot of sand there. People have been making windows since antiquity, so if they can do it, so can we today on a DIY basis.
Could you make your own glazing for this?
Rebecca Norman wrote:Add large openable windows in the west wall. Otherwise the plants would be harmed. If I'm out all day and unable to open them, I come back to wilted plants, which leads to dead seedlings, premature bolting, aphids, overly spicy arugula, and other problems.
3) I'm not sure how I feel about having a perennial deciduous vine for summer shading. Deciduous plants actually cast quite a bit of shade in winter. In my situation, I depend on the greenhouse as the main source of heat for the attached house, so I really want to maximumize heat gain in winter. In summer I find a shade cloth and/or annual vines work well for controlling the temperature.
Rebecca Norman wrote:I've been living with and loving attached solar greenhouses for many years. I have a couple of suggestions:
2) Add large openable windows in the west wall. Even with shading of a deciduous vine in summer, you'll want extreme cross ventilation if the glazing remains on through the summer. We remove our greenhouse glazing entirely for the summer, leaving just the frame. We'd bake if we left the glazing on, and the plants would die. Even with cross ventilation. But we are further south and much higher than you. In the shoulder season, for a month or two in the spring and fall, I open the window and the door at both ends through the midday, and close them at night. Otherwise the plants would be harmed. If I'm out all day and unable to open them, I come back to wilted plants, which leads to dead seedlings, premature bolting, aphids, overly spicy arugula, and other problems.
Lee Jenkins wrote:
- Wood: The large wood members are currently 2" x 6" dimensional lumber (DL). Probably not the right size, but probably close.
- Wood: The small wood members are currently 2" x 2" DL. Again, probably not the right size, but probably close.
- The structure must not admit water.
Kenneth Elwell wrote:A new antenna bracket to suit (welding project?), considering that access will be from on the garage roof in the future...
Lee Jenkins wrote:The wi-fi dish is a tricky constraint, to be sure. As far as I can tell, re-mounting it isn't part of Paul's plan; thus many design decisions were made in response to that.
paul wheaton wrote:Lots of good points.
Another thing that is inching back into my memory is the idea that if the door is mounted on the side of the solarium, it can be a full size door. But if it is mounted in the garage door frame, then it ends up being a bit small.
Chris Kott wrote:Travis, I love the idea of producing glass on-site, but it's really, enormously energy-intensive, especially if any glazing at all can be sourced from waste streams, like sliding glass doors and such.
It's still a great idea in the long-term, but I would be focusing on glass recycling at that point rather than making glass from raw materials. We have enough recyclable glass around, and all that's needed to get the glass chemistry right is the ability to distinguish between different grades and types of glass, to do them in separate batches, rather than mineralogy and chemistry degrees as is necessary to source the raw materials reliably.