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Post by ericvw on Jan 16, 2015 15:24:32 GMT -8
Hi peterberg, Just thought, we haven't heard much about y'all's new home. Any report? How is the winter weather treating you all? Cold in south western Virginia! Eric VW |
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Post by peterberg on Jan 17, 2015 2:23:43 GMT -8
Our new home is a passiv house, all electric, heavily insulated, relatively airtight built, balanced ventilation with heat recuperation, designed by me and one of its kind. The roof is crammed with solar panels and a probably over-dimensioned solar boiler(?) The house is zero-energy, generating about as much as we are using. It's still in densily populated area but about three minutes walk from a, to our standards, quite large park area. About 6 times a week we do a walk in the morning, before breakfast just skimming the borders of the park.
Regarding winter: this is the Netherlands you know, winter is about two to four weeks at the most of freezing. Rest of it is wet, windy and dark.
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Post by ericvw on Jan 17, 2015 21:16:50 GMT -8
Great to hear about your home, peterberg ! Didn't know you had a hand in designing it- that's wonderful.
I've been to Amsterdam in May of 1998, and seemed like it was bright until 9:45-10 pm! What an incredible holiday for me. Hate flying over the pond, tho!
Cheers on your home, really enjoy following your posts, glad you've fixed some of my posted pictures!
With regards,
Eric Van Wickler
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Post by Daryl on Jan 18, 2015 6:07:47 GMT -8
You are really on to something, Peter. Ever since I learned how to smoke food with a clay oven, I have been rethinking my ideas on heating in general. Less is more. I'm starting to believe that urban and home design is the most important aspect of heating a home. If the layout and insulation of a home are top notch, then not a lot of energy is needed to heat the place. I've cut my heating bill in half by insulating this old farmhouse the best I can under limited circumstances. If I had even a tiny stove or fireplace, then the bill could be cut down to 1/4 the original cost.
I've been searching for properties with a south facing backyard. It is almost impossible to find one in this area. You would think that for as little sun as we get here, someone would have capitalized on the direction of the sun.
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Post by peterberg on Jan 18, 2015 8:57:32 GMT -8
Capitalizing on sun direction is what I did here. The walls are broadly facing NW, NE, SE and SW because of the street direction. By cutting a large corner off the house one south facing wall emerged. That same wall is nearly all glass, 26' long and from floor to ceiling. With a roof overhang of 5' to keep the summer sun out. Here are some pictures, taken from early drawings. The first is the south face.  The north face is where the main entrance door is. When we come home we hate to stand in the rain and trying to find the keys...  And this is the top view, at the correct latitude and longitude, see my sig. After doing this placement it became possible to see the shadows any time of the year.  The exact placement of the windows and internal walls changed a couple of times but the general idea remained the same. The south facing wall is turned 9 degrees to the west in order to have the same corners on each end. edit1: After new satellite images are made, our house will be clearly visible in Google maps because of the unusual shape. |
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Post by ericvw on Jan 18, 2015 9:25:28 GMT -8
Fantastic peterberg !
Really admire the design, would love to see a pic of the finished product when you're ready to post one! The roof surfaces are perfectly flat? What sort of sealing/membrane did you use for the main roof, if there's no pitch?
What sort of R values did you implement in walls and ceilings?
Got a shop tucked in there somewhere?
Top notch, sir,
Eric VW
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Post by Daryl on Jan 19, 2015 0:27:41 GMT -8
Beautiful home.
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Post by peterberg on Jan 19, 2015 2:24:08 GMT -8
The roof surfaces are perfectly flat? What sort of sealing/membrane did you use for the main roof, if there's no pitch? The roof edges are really level but the main surface isn't. There's a pitch of 1% from a ridge somewhere in the middle to the edges where the clean water sewer pipes are. The membrane is EPDM, a synthetic rubber which is ultra-violet resistant, also used for making a pond in permeable ground. What sort of R values did you implement in walls and ceilings? Walls Rc=9.5, ceiling Rc=8.5, floor Rc=8.0, windows triple glass in modified and coated pvc profiles especcially for passiv houses. Got a shop tucked in there somewhere? Yes, there is. In the picture you see the whole ground floor, the workshop space is at the bottom side where the German carpenter wearing a hat is kneeling on the edge.  In fact there are three larger rooms, one living room with open kitchen and two workshops, the other one on the smaller second floor. Besides that, there's one bedroom, a washroom and a bathroom, an entrance hall and that's it. Together about 1900 sq ft space to live in. |
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Post by ericvw on Jan 19, 2015 3:54:27 GMT -8
That's awesome peterberg ! Great space and nice aerial pic too! Congratulations on the home- I'm sure it's a source of great pride for you  Eric VW |
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Post by satamax on Jan 19, 2015 5:38:42 GMT -8
Hey Peter, that's funny Your numbers are lower than the passive house RT2020 that is comming in France. I thought it wa supposed to be pretty much the same all over europe.
We will have to make the walls R10, the roof R13, and the floors R4. Remember that on the other side of the pond, the R vallues aren't the same at all. They talk about R40 in the walls etc!
HTH.
Max.
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Post by peterberg on Jan 19, 2015 7:18:16 GMT -8
@max,
In fact, the insulation values we've got here are more than we need to confirm to passiv house standards. Logically, our latitude and yours is quite different let alone the height above sea level. The standard isn't about insulation but about heat losses instead. Our walls are better than the norm and the floor about twice. That last one we did on purpose because we don't have central heating whatsoever. In the computer model, the PHPP, one of the factors is where the house should be built.
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Post by pinhead on Jan 19, 2015 8:33:13 GMT -8
Walls Rc=9.5, ceiling Rc=8.5, floor Rc=8.0, windows triple glass in modified and coated pvc profiles especcially for passiv houses. Your numbers had me thrown for a loop until Satamax mentioned that the EU values are different than US values. -EU----US- 9.5R = 53R 8.5R = 48R 8.0R = 45R |
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Post by satamax on Jan 19, 2015 12:16:28 GMT -8
Peter, where i live it's something like R13 all over to be pasive  |
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Post by peterberg on Jan 19, 2015 12:54:41 GMT -8
Your numbers had me thrown for a loop until Satamax mentioned that the EU values are different than US values. Looks like it has something to do with heat loss through a different notation of area. |
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Post by peterberg on Jan 19, 2015 13:02:22 GMT -8
Peter, where i live it's something like R13 all over to be pasive Doesn't surprise me, you are living far more south but on a much higher level than me. I'm a low-living human being, about 3.5 meter below sea and you are high up in the Southern Alps, about 1500 meter? |
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