Tuesday, September 18, 2012
Walls and windows upstairs
Noticeably, there are no windows in the North wall and the South wall has a window set high on the wall. The lack of windows on the North wall will limit our loss of heat in the Winter. North facing windows are essentially holes in a house and provide little light and plenty of reduced efficiency. I should note, a friend was recently visiting from Australia. In The Southern hemisphere the dynamic is reversed. The North wall is where you have solar gain and the South wall is the efficiency suck.
Our North wall will also house our closet. The normal insulation will be in place in the walls but the addition of a closet along the North wall will provide additional buffeting. Hopefully we will see some degree of benefit from this layout choice.
A high window on the Southern wall is placed in order to maximize Winter Sun and reduce Summer Sun. Allowing adequate sun to fill the house in the Winter will not only lift spirits and moods but also help to radiantly warm the house. Conversely, in the Summer the radiant sun would be a negative as we try to keep the house cooler. The placement of the window high on the wall will allow the overhang of the roof to shade the window for a large portion of the day. In the Summer the suns declination is higher in the sky and this higher track is what allows for the eave shading.
We purposefully place large windows on the East and West sides of the house to increase filtered light in the mid day while increasing morning sun and sunset rays. The large window to the East will crank open, three separate cranks stacked. The "triple crank" opens out in such a manner as to shield the interior of the house from any rain and as to scoop air coming up the hill. The scooped air can then enter the house and create flow through ventilation.