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Earthbag Plans - Version 2

 
pollinator
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Since I can't work on our Missouri place from Florida, I'm spending that time with more planning on our earthbag home.  I did a scale model before we left.  However; it wasn't portable enough to bring with us so I'm down to pencil and paper.

During the scale model process, we swapped the living room and kitchen and moved the door.  I've moved the door again during the more detailed kitchen planning.  We also determined that we only wanted one door in the interior wall.  At first we were going to do a bedroom door and then a door into the bathroom from the bedroom, but we weren't terribly happy with that solution.  In this plan, we've put a mini-hall where the bedroom door opening would be with pocket doors on either side and a laundry area at the back.

A video posted on this site about a step-saving kitchen from 1949 really helped in my planning process since I'm an old fashioned cook.  I did some digging and found the pamphlets published on this video.  

https://permies.com/t/237578/Step-Saving-Kitchen

Something I didn't have space for in my scale model was the root cellar/pantry area that will buried in the hill and accessed from the sunroom.  I was able to draw it in this.  The root cellar will be dropped 18 inches below floor level and completely covered in earth.

This is obviously not to scale, but I feel like it gives one the idea.

Any suggestions?

Copy-of-HPH-(2000-x-2000-px)-(1000-x-1000-px).png
[Thumbnail for Copy-of-HPH-(2000-x-2000-px)-(1000-x-1000-px).png]
 
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Sherry,

I find it a little bit off that the cellar is on the southern side and the room that should be warmest - bathroom is on the northern.
Also, if I had a chance to design from scratch, I would put a heating stove in the center of your round house and add a cooking stove to it, so they would use the same chimney with two flues:

-you would have even radiation of heat from the center of the circle, instead of partially heating southern wall (adjacent to the cellar) and being farthest from the bathroom
-your chimney would pierce the roof in the center, where the roof probably will be the tallest (dome, cone?)
 
Sherry Willis
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Cristobal Cristo wrote:Sherry,

I find it a little bit off that the cellar is on the southern side and the room that should be warmest - bathroom is on the northern.
Also, if I had a chance to design from scratch, I would put a heating stove in the center of your round house and add a cooking stove to it, so they would use the same chimney with two flues:

-you would have even radiation of heat from the center of the circle, instead of partially heating southern wall (adjacent to the cellar) and being farthest from the bathroom
-your chimney would pierce the roof in the center, where the roof probably will be the tallest (dome, cone?)



Hi Cristobal,

Our property slopes to the north, so the south side is the coolest side of the house since it will be buried in the hill.  This means the cellar HAS to be on the south side.  It will be completely buried.  The land is also very heavily wooded with towering oak trees, so there is no solar gain to the south.  We get a little sun from east and west.

The cooking stove will be propane, so no flue.  There will be a earthen oven in the sunroom for planned baking and summer cooking so the house won't get overheated.

We considered putting the stove in the center, but didn't see a good way to set it up that way.  The heater is a rocket mass stove, so the entire bench is heated and then radiates into the home. The mass will infiltrate the wall between the living and bedroom wall to heat the bedroom a little more.  The flue will go out right behind the stove, but by the time it gets there, the air should be pretty cool (if we design it correctly).

You can't tell from this drawing, but the roof will be a shed roof sloping west so all the rainwater can be dumped into the tank on the west side.

We are working on the plans for the bathroom to include a very small parlor-type wood stove with a ferrocement shower/soaking tub/sauna, but I haven't gotten that far with those yet.

I deal much better with the cold than the heat, so I'm more concerned with cooling rather than heating, which is why the bedroom is on the earth-bermed side.  We don't have much real cold here (at least what I would consider real cold being from Wyoming).  That isn't to say there aren't cold days, but it's generally cold snaps that don't last too long and then it warms back up again.  The earth-berming and the straw-bale wrapped wall to the north should help moderate temperatures both in winter and summer.  
 
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An RMH does not need to have a barrel and long benches. I think you would be able to center it in the space better with a tall bell over the heat riser, placed right next to the bedroom door, with some bench extending along the bedroom wall. This would concentrate the heating near the middle and the bathroom, while reducing the heating of the root cellar wall.

A general layout principle enshrined in building code is that any sleeping space should have two exit paths, like a door and a window not more than 4' off the floor. A west window only as large as required by code would give that and also some direct light and ventilation to the bedroom. As shown, you only have one exit from the entire house, unless the living room or kitchen windows would be usable in an emergency.

Your kitchen layout is nice, I would only advise adding a bit of counter on the other side of the stove for more flexibility. My mother was an interior designer who made spaces that people loved, so I have experience with this beyond my own architectural education.  
For reference, what is the average interior diameter of your main enclosure?
From a permie perspective, a clothesline and drying racks are very effective and can eliminate the dryer, especially for a one bedroom house.
 
Sherry Willis
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Hi Glenn,

Some really great points!

There will probably be a window in the bedroom, but I don't know were until we excavate because I'm not sure where the soil will end up.  We don't have any code requirements in our county, but that doesn't mean that code standards don't have any value.

We will definitely reconsider the centralization of the RMH.  I have a lot of research to do on those, but that's why we're planning now.

The house is 21ish feet across, so quite small.

Here's a photo of the first scale model footprint that might help visualize size.  Each square is 1 foot.
Copy-of-HPH-(2000-x-2000-px)-(1000-x-1000-px)-(1).png
[Thumbnail for Copy-of-HPH-(2000-x-2000-px)-(1000-x-1000-px)-(1).png]
 
pollinator
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Glenn nailed it.

You NEED a landing space for hot pans from the oven, so a little heat proof counter or rolling cart that can park there or roll out as an island.

You don’t want that sharp corner in the counter. If you round the inside of that corner you will have a much better workspace. Think about that corner for what you will put in the cabinets, it can be a real dead space. Looks like a good place for a small water heater but a pain to work on.

The egress windows are a good piece of code. This is one of those times I would go through the hassle and expense of a skylight if that is what it takes to get a second exit from the bedroom.
 
Sherry Willis
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R Scott wrote:Glenn nailed it.

You NEED a landing space for hot pans from the oven, so a little heat proof counter or rolling cart that can park there or roll out as an island.

You don’t want that sharp corner in the counter. If you round the inside of that corner you will have a much better workspace. Think about that corner for what you will put in the cabinets, it can be a real dead space. Looks like a good place for a small water heater but a pain to work on.

The egress windows are a good piece of code. This is one of those times I would go through the hassle and expense of a skylight if that is what it takes to get a second exit from the bedroom.



I agree about the place for pans.  I also played with the idea of putting an angled sink in the corner which might make better use of that space and would give more free counter space in the center.  Perhaps it would be better to put the refrigerator where the stove is and the stove on the other side....  

I have spent almost six years living (and cooking) in a Sprinter van so this place looks like a PALACE to me.
 
Glenn Herbert
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Using your 21' inside diameter and the layout sketch, I did a scaled sketch. All of the fixtures are actual size.This is a very tight layout - you might need to use mini versions of some things, like a less than 4' standard table. I don't know if you can get a bed smaller than a standard double without it being too skinny for two.
IMG_3285A.jpg
scale sketch of 21 foot diam house
scale sketch of 21 foot diam house
 
Cristobal Cristo
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I really like the modification by Glenn!
I would just remove the refrigerator to the cellar and the washing machine out of the house.
At 32 m2 the space is precious.
 
Sherry Willis
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Glenn Herbert wrote:Using your 21' inside diameter and the layout sketch, I did a scaled sketch. All of the fixtures are actual size.This is a very tight layout - you might need to use mini versions of some things, like a less than 4' standard table. I don't know if you can get a bed smaller than a standard double without it being too skinny for two.



Oh my gosh, thank you so much!!!  

We've lived full time in a 14'x6' Sprinter van for almost 6 years now, so we're pretty good at packing a lot in a small space.  Stove will be a 20" apartment stove and refrigerator will be apartment sized (24" wide) so that will help.  We'll probably do a washer/dryer combo so there will be more storage space in there, but maybe just a compact stackable.

I'd say we'll do either a drop-leaf or a bistro set for the dining area.

Bathroom won't have normal fixtures at all, but a custom ferrocement setup that combines everything including the composting toilet bench, in-floor soaking tub in the shower with a cedar lid so it can also be the shower floor and a tiny wood stove in the corner for a sauna effect if we want.  I think rather than having a linen closet in the back, we'll add that to the bedroom closet and put the shower along the whole back of the room.  That way less of the room is necessary for traffic area.

I think the bed will be best long ways and that "wasted" space in the corner can become a bookshelf.

The shape isn't truly round, it's actually a spiral, so the bedroom will be a bit larger than it looks in this.

This is what we've been living in for the last 6 years:
20210709_123318.jpg
[Thumbnail for 20210709_123318.jpg]
20210709_123243.jpg
[Thumbnail for 20210709_123243.jpg]
20210709_123128.jpg
[Thumbnail for 20210709_123128.jpg]
 
Sherry Willis
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Cristobal Cristo wrote:I really like the modification by Glenn!
I would just remove the refrigerator to the cellar and the washing machine out of the house.
At 32 m2 the space is precious.



Space is indeed precious!
 
Sherry Willis
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Sherry Willis wrote:

Sherry Willis wrote:

Glenn Herbert wrote:Using your 21' inside diameter and the layout sketch, I did a scaled sketch. All of the fixtures are actual size.This is a very tight layout - you might need to use mini versions of some things, like a less than 4' standard table. I don't know if you can get a bed smaller than a standard double without it being too skinny for two.



Oh my gosh, thank you so much!!!  Can I have permission to use this??

We've lived full time in a 14'x6' Sprinter van for almost 6 years now, so we're pretty good at packing a lot in a small space.  Stove will be a 20" apartment stove and refrigerator will be apartment sized (24" wide) so that will help.  We'll probably do a washer/dryer combo so there will be more storage space in there, but maybe just a compact stackable.

I'd say we'll do either a drop-leaf or a bistro set for the dining area.

Bathroom won't have normal fixtures at all, but a custom ferrocement setup that combines everything including the composting toilet bench, in-floor soaking tub in the shower with a cedar lid so it can also be the shower floor and a tiny wood stove in the corner for a sauna effect if we want.  I think rather than having a linen closet in the back, we'll add that to the bedroom closet and put the shower along the whole back of the room.  That way less of the room is necessary for traffic area.

I think the bed will be best long ways and that "wasted" space in the corner can become a bookshelf.

The shape isn't truly round, it's actually a spiral, but I think your version works better since it adds more depth to the house AND it will be much easier to mark out.  Looks like I'll be building another scale model!!

This is what we've been living in for the last 6 years:

 
Glenn Herbert
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I drew it hoping it would be useful

I saw the spiral (or at least the sharply curving tail), and approximated it since I didn't have precise information to go on. Since you are having a big porch overhang and root cellar, there is hardly any additional building required for a larger space in the living area (which could shift to give other spaces breathing room too), so I think the cool spiral needs to yield to practicality.

Notably, if the bedroom wall moves 6" or a foot, there would be enough room to put the head against the curved wall, giving access to both sides and allowing for some sort of dressers, with almost zero inaccessible space behind the headboard. This tweak requires a precise scale drawing to be certain it will work and how much movement is needed.
 
Glenn Herbert
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Another thought for accommodating the bed against the outer wall: move a 5' stretch of that wall for the lower 3 feet out by 8" or a foot and straighten it, then above that "arch" the regular curve over the space so the overall structure maintains the curve. This would be super easy in cob, not much trickier in earthbags.
 
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I recognize that this plan will be a significant upgrade in living space, and that you've acknowledged Glenn and R Scott's concerns, but  - that horrible word - but I'm still concerned that the stove is between the only full sized exit, and a possible exit over the sink. If the bedroom window is designed and set up to be a *really practical* quick and easy exit, even if you just broke your leg two days ago, I'd be much less worried.

What would you guys think about the window that's closest to the door to the future cold space were to become the full-sized door (assuming you go for the smaller RMH bench idea), and the current door could turn back into a window. That would get the door further from any kitchen/stove fire.

I would note that your Sprint pictures (which are lovely), show 3 practical exits that could all be quick to use in an emergency.
 
Sherry Willis
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Glenn Herbert wrote:Another thought for accommodating the bed against the outer wall: move a 5' stretch of that wall for the lower 3 feet out by 8" or a foot and straighten it, then above that "arch" the regular curve over the space so the overall structure maintains the curve. This would be super easy in cob, not much trickier in earthbags.



Interesting idea, but probably not one we would attempt as that wall is partially buried in the hill and I'd be worried about stability.  HOWEVER, I would certainly consider expanding the circle to 22' which would definitely give that little bit of extra space with not much more in the way of expense or labor.  Definitely doable....
 
Sherry Willis
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Jay Angler wrote:I recognize that this plan will be a significant upgrade in living space, and that you've acknowledged Glenn and R Scott's concerns, but  - that horrible word - but I'm still concerned that the stove is between the only full sized exit, and a possible exit over the sink. If the bedroom window is designed and set up to be a *really practical* quick and easy exit, even if you just broke your leg two days ago, I'd be much less worried.

What would you guys think about the window that's closest to the door to the future cold space were to become the full-sized door (assuming you go for the smaller RMH bench idea), and the current door could turn back into a window. That would get the door further from any kitchen/stove fire.

I would note that your Sprint pictures (which are lovely), show 3 practical exits that could all be quick to use in an emergency.



Hi Jay,

There's always a BUT with anything, LOL.  I like having the door next to the kitchen counter since it really defines the dining area, but it probably would work where the table is as well.  Originally we had it in the living area, but decided it wouldn't work there.   I think we'll add a good egress window to the bathroom and make sure the bedroom window is also a decent egress if possible.

The back doors of the van do not open easily from the inside due to the height of the bed, so we really only have two exits, unless we were to break out the skylight and then Jump 9' off the roof.
 
Glenn Herbert
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Having laid out the fixtures to scale in a 21' circle, I think a 22' circle would accommodate your plans comfortably enough instead of having to scrimp and squeeze everywhere.

I can understand your reluctance to try the bed bumpout, though I believe it would work fine if done properly. Increasing the whole thing if you can afford it would work better.
 
Sherry Willis
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Glenn Herbert wrote:Having laid out the fixtures to scale in a 21' circle, I think a 22' circle would accommodate your plans comfortably enough instead of having to scrimp and squeeze everywhere.

I can understand your reluctance to try the bed bumpout, though I believe it would work fine if done properly. Increasing the whole thing if you can afford it would work better.



I heartily agree and so does my husband, so we're going to expand it to 22'.  It 33 sq feet to the floor, but adds very little to the wall so I think the cost would be doable.  So... back to the drawing board and another scale model.  I think I'll do it in homemade modeling clay rather than mud this time.

Thank you EVERYONE for your great advice and willingness to help.
 
Jay Angler
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Sherry Willis wrote:The back doors of the van do not open easily from the inside due to the height of the bed, so we really only have two exits, unless we were to break out the skylight and then Jump 9' off the roof.

A local lady tossed her infant out of a second story window to a total stranger when her stairs were blocked by fire. She then jumped herself, but strangers tried to break her fall a little. Fire is scary and doesn't wait for debate. I seem to recall that said stranger gave a lot of encouragement to the actions she took. It saved two lives.
 
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