Interior Doors

Ok, belgium here, in troubble: i should construct a shop next months, with single-pane windows (obvious because the windows mustn't reflect), but it is for a flower-shop with looooads of plants in it?! can i do this? i mean .. dampness and condens will in winter be all over the place? passive ventilation ok .. but that won't solve all with single-pane windows in a flowershop a low interrior heating device on the floor before the windows ok ..and apassiveventillation above the windows .. but man .. what a waste of energy...?? can anyone help meout? thx, dries

i need to install interior doors without casing, just drywall to the jamb. i've heard the most common way to do this is with a jamb equal to the width of the framing containing a kerf into which a special asymetrical cornerbead is inserted. i've searched for this cornerbead and it appears to be made only in bullnose. it's designed so that you can caulk one corner into the jamb and finishe the other side with drywall mud (the side of the corner that is flush with the wall). my job requires square corners. if i use regular square cornerbead, i'll have to apply mud on the "short" corner as well. in other words, i'll have a strip of mud 1/2 wide that probably won't be very durable. a drywall "L" moulding would solve the problem, but i've only seen those in 5/8" which wouldn't be long enough to slip into the kerf cut. anyone have any experience doing this? thanks for any help.