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stoneyreef
04-28-2010, 10:48 AM
I am going to build an 8x8 garden shed to keep the lawnmower and such in. I am contemplating using a polycarbonate roof this way the peak of the shed which is normally wasted space can be used as a green house in the spring for starting seedlings. This leads to the question of how to find or calculate the optimal roof degree for catching the spring sun. Also would like a source to educate myself on Something like this. Also a online supplier of green house products or links to get the appropriate materials for this roof and the like. Can anyone help me out?

Chip-skiff
04-28-2010, 05:34 PM
Here's a link to a site on orienting solar PV panels. Same calculation.

http://www.macslab.com/optsolar.html

For the application you describe, it might make sense to put in part of the roof in polycarbonate and perhaps an endwall. But when summer comes, you might be dealing with a pretty damn hot storage shed.

I'd probably build a dedicated coldframe against a south-facing wall for the seedlings.

(See the Greenhouse Update thread further down).

JBreeze
04-28-2010, 06:27 PM
I've started to look into the similar sort of thing, i.e. attaching some sort of greenhouse to the front (south side) of an existing shed.

Here is a link to a supplier in CT (not on-line).....it might give you some ideas about the types of glazings available and their characteristics:

http://www.whmilikowski.com/SubmittedToDesignServices/2010_Catalog/Glazing-Covering-Access.pdf

stoneyreef
04-28-2010, 06:41 PM
Here's a link to a site on orienting solar PV panels. Same calculation.

http://www.macslab.com/optsolar.html

For the application you describe, it might make sense to put in part of the roof in polycarbonate and perhaps an endwall. But when summer comes, you might be dealing with a pretty damn hot storage shed.

I'd probably build a dedicated coldframe against a south-facing wall for the seedlings.

(See the Greenhouse Update thread further down).

I was thinking of putting a loft type thing in it insulated with a sheet of 250 pink foam and some gable vents to keep it below nuclear heat in the summer. Plus if I use a split barn door I can keep the top half open.