consequences | AiDomes

American Ingenuity can design custom or modified basement plans for a reasonable fee. The Ai prefabricated panelized home kit can be built on a basement.

  • 34' dome on full basement utilizing 34' Zeta 21 plan.

(Click dots to change picture or use left and right arrows in picture)

To view floor plans by dome size, some of which have a basement designed, click on Stock Plans. If you do not see a stock plan to fit your lifestyle, Ai can modify or customize a plan based on your notes or sketches.  Please email your sketch or notes by clicking on Contact Us. The Plans Coordinator will review your sketches and contact you to clarify your needs and email a Plans Quote.  During the basement plans design, Ai will email a basement questionnaire.  When you want Ai to start the design of your plans, pay in full for your plans and agree to the Plans Quote.

Your building department will have recommendations whether your property should have a soil report completed or not.  If the soil contents or load bearing pressure is debatable, hire a Geotechnical Company to complete a soil report with recommendations. Soil reports can cost from $300 up.

To complete the basement designs, American Ingenuity hires a local engineer.  If your soil is clay he requires a soil report and the soils engineer’s recommendations.  The engineer calculates the load of the dome and its interior floors to determine joist size and spacing and wall design.  Ai then incorporates his designs into your building plans.  Please call our office at 321-639-8777 for engineer pricing.

Ai can provide plans for most types of basement wall systems from poured on site concrete walls or concrete block walls or insulated concrete forms (ICF) or precast basement wall panels.

Soil, soil, soil.  The dome’s standard footing size is 20″ tall by 16″ wide with slab 4″. Foundation should be built on undisturbed native soil or fill – with soil compacted to 98% density for a minimum of 2,000 psf of bearing pressure. If your bearing capacity is less, then the engineer can increase your footer size and slab thickness. For example the soil for a dome being built in California was 1,500 psf. Its footer was increased to  20″x20″ and slab was increased to 6″.  In some instances the footer may need to be an augured footing three feet down to hit cap rock.  In other instances your footings may need to rest on wood pilings driven 40’ into the ground in order to get to solid soil.  Ai does not determine the type foundation you need for your dome.  You tell us what type footing and basement you desire based on your soil report.  Generally a foundation cannot be built on clay and  basement walls cannot be back filled with clay.

Since we are a manufacturer of dome housing kits, we do not manufacture or build basement walls, please contact your local basement subcontractors for basement construction costs.  .

Full basements are the same size and shape as the dome first floor. The multiple sided foundation for the Ai dome can cost 15% to 25% more than a rectangle basement. If you mark the corners of the foundation itself this removes the responsibility from the contractor.

The below ground basement can have the slab poured first with the exterior basement walls built on top of the slab or the footings can be poured separate with the exterior basement wall built on top of the footings and then the slab poured inside the basement wall. Basement walls are usually 8″ thick when made of poured concrete but will likely increase depending on the height of the basement wall and the height of the back fill.

The plans show  rebars coming out of the basement walls to connect into the seams between the dome prefab riser panels and into the front and back of each entryway base panel and each first floor door dormer base panel, etc.  Vertical rebars come out of the footings thru the buttress walls into the dome panels. Buttress walls support the entryway and first floor door dormer panels.  The horizontal rebars in the buttress walls connect the buttress wall to the basement walls.   After the basement is poured while the concrete is still malleable, insert in the top of the basement walls per the foundation plan the tie down hook rebars that go into the horizontal riser seams.

When the dome is built on a basement, the first floor framing of the dome is typically built with wood 2×10’s which are hung on the inside of the concrete basement walls.

Should I build a second dome for a garage or build a basement under the dome to use for my garage?  The main determining factor on which kind of garage is built is whether your land is flat or sloped and your budget.

If your land is flat, we recommend a dome garage or conventional garage because building a dome on an above ground basement  causes the access of the dome via basement stairs or exterior stairs.  Ai can design a lift if sufficient room in the basement or a rail chair on the stairs to access the dome from the basement.

If your land is sloped and the dome is built on a basement, parts of the first floor of the dome can be accessed at ground level or a few steps from ground level. Then building your dome on a basement is the better choice.  When this is done, some parts of the basement will be open so cars can be driven into the basement.  Other parts will be back filled with dirt so you can walk out the first floor of the dome to access your land.

For a complete summary of all types of foundations that can be used with the American Ingenuity Domes, click on Foundation Summary.

Ai DOMES BUILT ON BASEMENTS

8″ thick solid concrete basement walls for 34′ Dome
 
34′ Dome Home on poured concrete basement walls
Back view of the above 34′ dome; this  side of the basement is bermed with dirt and French drain installed
Front view of the same dome with basement entrance.
Photo looking down into basement from second floor of 45′ Dome
Basement under 45′ Dome House
34′ Dome Home on basement

 

Q: Does American Ingenuity modify or design custom basement plans?
A:
Yes, Ai can design custom or modified basement plans for a reasonable cost. Fax or email your sketch to us and we will call back with questions and complete a Plans Quote with fees for Ai to design your dome building plans and basement building plans.

Q: Can Ai design basement plans using concrete block, poured walls or insulated concrete forms?
A:
Yes, we can provide plans for most types of basement wall systems utilizing poured on site concrete or blocks or insulated concrete forms or precast basement wall panels.

Q: What materials can be used to build the basement walls?
A:
A company named Superior Walls supplies precast insulated concrete wall panels. Their number is 800-452-9255 or go to their web site www.superiorwalls.com

The following came directly from their site: The Superior Walls system consists of wall panels built with steel-reinforced concrete studs, 1″ rigid Dow® insulation, a reinforced top and bottom bond (footer) beams, along with a concrete facing approximately 2″ thick. The bond beams and concrete facing are cast in one continuous pour. Studs are connected by encapsulating vertical rebars and galvanized hooks and pins which protrude from the top, bottom, and back of each stud. Pressure-treated furring strips are pre-attached to the inner face of each stud. This provides the base for the owner/builder to finish the basement without having to add any additional studding. Holes are cast into each stud to accommodate wiring and small-diameter plumbing. The top bond beam is perforated to allow for bolting of the pressure-treated sill plates.

INSTALLATIONThe SUPERIOR WALLS System:  The panels are set on a bed of compacted stone which serves as a bearing layer as well as a drainage control system under the foundation. Once in place, the panels are bolted together at the top and bottom and sealed with a gun-applied adhesive-sealant. The owner/builder or builder then pours the floor slab inside the wall system.

Foam Blocks filled with Concrete are referred to as ICF for Insulated Concrete Forms. These blocks are easy to use and provide insulation. Their high cost is offset by labor savings in the assembly. Some of the many manufacturers are listed below. Call and ask them for the nearest supplier to you.  One of the engineers utilized by Ai to engineer seal its building plans, prefers ARXX ICF wall to building a basement wall with concrete blocks.  The ARXX ICF panel is 16″ by 4′ long which makes for quicker basement wall construction.

Reward Wall System, 800-468-6344, www.rewardwalls.com

Poly Steel, Albuquerque NM, 800-977-3676, www.polysteel.com

Insul Deck, Florence KY, 800-475-6720, www.insul-deck.org

Arxx, Alexandria Bay NY, 315-482-5253, www.arxx.net

Q: How is the below ground basement built and how is the dome attached to the basement walls?
A:
The below ground basement can have the slab poured first with the exterior basement walls built on top of the slab or the footings can be poured separate with the exterior basement wall built on top of the footings and then the slab poured inside the basement wall. Basement walls are usually 8″ thick when made of poured concrete but will likely increase depending on the height of the basement wall and the height of the backfill.

Ai has basement plans available that explain how the dome is attached to the basement, etc. for example rebars need to come out of the basement wall to connect into the seams between the dome riser panels and into the front and back of each entryway base panel and each first floor door dormer base panel.  Vertical rebars come out of the footings thru the buttress walls into the dome panels. Buttress walls support the entryway and first floor door dormers.  The horizontal rebars in the buttress walls connect the buttress wall to the basement walls.  After the basement is poured while the concrete is still malleable, insert in the top of the basement walls per the foundation plan the tie down hook rebars that go into the bottom horizontal riser seams.

When the dome is built on a basement, the first floor framing of the dome is typically built with wood 2×10’s, hung on the side of the basement walls and are supported by any interior basement walls or designed posts. The riser panels rests on the basement wall.  When the riser panels bottom seam is concreted, the concrete continues down the side of the basement wall six inches.

Q: How thick are the basement walls?
A:
Basement walls are usually 8″ thick when made of poured concrete but will likely increase depending on the height of the basement wall and the height of the back fill.

Q: If I build my dome on a basement, will I need to install a French drain?
A:
Yes. Included in the basement building plans will be a French drain sheet. The steps to install the French drain are:

  1. Cover any part of the basement wall that will be in touch with soil with a tar emulsion (designed for this purpose). This waterproof coat should extend down to (and if possible, under) the polyethylene vapor barrier.
  2. If you wish, you may add additional waterproofing. Apply roofing felt over the tar emulsion, overlapping the edges 6” and sealing the felt with more tar. Place the roofing paper over the outside of the vapor barrier to shed water. Then, give the whole wall one more coat of tar. This extra investment will provide a superior measure of protection against moisture. Please, don’t cut corners.
  3. Place a perforated drainpipe (at least 3” in diameter to 4” in diameter. For long lengths), holes down, into the gravel bed. The pipe should be below the floor level and drop 1” for every 8’ of length. This discharges water into an area lower than the dome itself and allows quick drainage away from the building. Lay pipe in the gravel bed and cover gravel with two layers of roofing felt to prevent dirt from penetrating into the gravel.
  4. Backfill the entire area.

 

8.15 best footer wire ready to pour Kaufman picture assembly 088

Concrete Slab – Standard for Ai Dome

45′ dome home linked to 34′ dome garage formed up slab being poured

Poured slab for 34' dome linked to 45' dome.

Poured slab for 34′ dome linked to 45′ dome.

American Ingenuity’s stock building plans include drawings for a concrete slab foundation. Plans for raised wood floors or basements or pilings with platforms are available.  For a complete summary of the foundations that can be utilized with the American Ingenuity dome, click on Foundation Summary.

The dome’s standard footing size is 20″ tall by 16″ wide with slab 4″. Foundation should be built on undisturbed native soil or fill – with soil compacted to 98% density for a minimum of 2,000 psf of bearing pressure. If your bearing capacity is less, then the engineer can increase your footer size and slab thickness. For example the soil for a dome being built in California was 1,500 psf. Its footer was increased to  20’x20″ and slab was increased to 6″.

Ai can design a concrete stem wall to support the dome and a wood first floor.  We can replace a concrete slab with raised wood floor and design the first floor joist. The cost depends on the complexity, please call our office for pricing.  The garage dome would need a concrete slab.

How is the concrete slab insulated? As far as insulating the slab, it is the customer’s choice with some building departments not allowing the slab perimeter to be insulated. For example in Florida due to termites most areas will not allow perimeter insulation.. The insulating of the slab is listed on the building plans as an option. If the earth is cold then using 2″ thick E.P.S. would be beneficial.

Q: Are there any special requirements for the foundation?
A:
The only thing unusual about Ai’s dome foundation is its shape. The multiple sided foundation is made up of flat sides to match the riser panels. Because Ai’s dome is lighter than most other buildings, it has less loading on the foundation. Reinforcing rebars connect the riser walls, entryway and first floor door dormer base panels to the foundation at the vertical seams.

Q: Will the foundation for the dome cost more to build than a conventional shaped foundation?
A:
Probably. The multiple sided foundation for our dome is only slightly more difficult than a conventional house and should not affect the cost more than 15% at most 25%. If you would mark the corners of the foundation, this will help remove a lot of the fear from the subcontractor. You will find that they will give you a better price.

Q: How deep will the footings be?
A:
Ai’s standard footing for monolithic slab is 20″ tall by 16″ wide with 4″ concrete slab.  If there is a frost line, the footing depth is determined by the building department.   Also if your soil does not compact to 2,000 lbs per psf then your footer and slab thickness will be enlarged.

Q: How many yards of concrete is needed for the foundation and how many bags of cement will be needed to concrete the seams?
A:
The number of bags of Portland cement needed to finish the shell varies depending on the number of entryways and dormers and whether you have a cupola or a link. The following is a Portland Cement bag estimate to concrete the seams.

Dome Size Foundation Concrete (Yds.) Portland Cement For Seams (bags)
22′
9
30-40
27′
10
40-45
30′
11.54
50-55
34′
14.31
60-65
40′
19.00
70-75
45′
23.29
80-85
48′
26.26
90-100

Foundations for Ai Domes can be built utilizing the same foundation choices as conventional housing. The standard foundation that comes with Ai’s building plans is a concrete slab; however Ai can design basements, stem walls, pilings, concrete block columns with assistance of local engineer.

Poured slab for 34' dome linked to 45' dome.

Concrete slabs poured for 45′ dome linked to 34′ dome

8.18 rebar in footing Kaufman picture assembly 051

Forms in place, footers being poured.  45′ dome.

8.19 rebar in finished slab Kaufman picture assembly 095

Finishing slab for 45′ Dome.

8.20 rebars in finished slab Kaufman picture assembly 096

Finishing slab for 45′ dome.
Vertical Rebars at corners to extend between two risers
or where riser meets entryway or door dormer base panel

 

Stroupe basment wall

Concrete Block Basement Wall for 45′ dome.
Ai can design poured on site basement walls,
Superior Wall Concrete Poured Walls
or Insulated Concrete Form (ICF) basement walls.

American Ingenuity domes can be built utilizing the same foundation choices as conventional housing.

The foundation types that Ai designs are:

  1. A monolithic concrete slab
  2. Poured footing with a stem wall and then a poured slab on fill
  3. Poured footing with a stem wall and then a raised wood floor
  4. Basement – concrete block, ICF (Insulated Concrete Forms), poured on site concrete basement walls or poured concrete walls brought in and assembled on site.
  5. Pilings and a platform or columns and a platform.  Or pilings under columns with grade level concrete beam tying pilings together with platform.

The type of foundation that is built for your new home depends on which is more advantageous for your area, what your building department requires and if your foundation is other than concrete slab – what your soil’s report recommends.

The standard foundation that comes with Ai’s building plans is a concrete slab. For Ai to design any other foundation other than concrete slab, a local engineer is hired.  He requires a soil’s report where the soil engineer recommending what type foundation be built for that type soil. The local Florida license PE engineer uses the soil report data to give Ai details for your foundation design.  He calculates the load of the dome and its interior floors to determine joist size and spacing and wall design.  Ai then incorporates the engineer’s designs into your building plans.  Call our office at 321-639-8777 for engineer pricing.

The dome’s standard footing size is 20″ tall by 16″ wide with slab 4″. Foundation should be built on undisturbed native soil or fill – with soil compacted to 98% density for a minimum of 2,000 psf of bearing pressure. If your bearing capacity is less, then the engineer can increase your footer size and slab thickness. For example the soil for a dome being built in California was 1,500 psf. Its footer was increased to  20’x20″ and slab was increased to 6″.

For stock plan pricing and plan information, view Stock Plan Pricing, and Building Plans. For sale pricing on the building plans, click on Sale and scroll down the page to see the plans sale pricing.  For raised wood floor designs or other designs call or email for a quote.

American Ingenuity’s stock building plan pricing is for two sets of Building Plans that contain all blueprints typically provided with any type of housing and include floor plans, exterior elevations and dome shell section view, top view showing panel placement, floor joist framing plans, structural details, and locations of plumbing and electrical fixtures. Plumbing, electrical and HVAC diagrams are not provided because Ai has found that the sub-contractors performing those functions know how they want to layout your electrical, plumbing and HVAC and should be the ones completing these diagrams. 

Feel Free to call Ai with your questions. Contact us at 321-639-8777 Monday through Friday 9 to 5 eastern time.

The following are some of our most asked foundation items

  • Ai can replace a concrete slab foundation with a raised wood floor and design the first floor joist. The cost depends on the complexity.
  • All foundations are designed and laid out with hook tie down rebar in the bottom riser horizontal seams, rebar into each of the riser wall seams and a rebar extends up in the front and back of each entryway riser panel, first floor door dormer and other areas.  The building plans are specific about rebar locations and size.  The riser seams are filled with concrete as the dome kit is assembled. Once the riser wall seams (horizontal and vertical) are filled with concrete the dome is secure to the slab. The riser panel placement is based on an radii dimension that is taken from the center of the floor to the inside surface of the riser panels. When the riser panel’s bottom seam areas are filled, the concrete continues along the side of the foundation. If your dome is built on a basement or pilings or columns, rebars are designed to come up into each riser wall seam from the basement walls, pilings or columns.
  • Ai’s dome is lighter than most other buildings; as a result it has less loading on the foundation.
  • The multiple sided foundation of the Ai dome causes its cost to be 15% to 25% more than a conventional slab.
  • Ai. cannot provide Building Plans for wood foundations or unusual designs that are beyond our knowledge.
  • The concrete slab perimeter can be insulated if code allows.  For example in some areas in Florida perimeter insulation is not permitted due to termites.  

I think I need to build my foundation off the ground.

First of all, how high off the ground does the first floor have to be? If you do not know this answer, call your building department and ask them.

If your dome has to be eight feet to ten feet off the ground:

  • Due to a wave of water not rising water, then the dome can be built on concrete columns and a concrete patform. If you want enclosed rooms or a garage under the platform, then break-a-way walls can be installed.
  • Due to rising water, build the dome on an above ground basement or build concrete block columns under the corners of the platform.

If your dome has to be raised two to three feet, may be best to bring in fill and construct the concrete slab onto the fill.

If your dome has to be raised two to three feet, build a stem wall:

  • Bring in fill dirt to fill within the stem wall and pour a concrete slab onto the fill and build a stem wall. (most economical and energy efficient)
  • Install a wood floor that sets on piers and beams. You would have a crawl space. (This is more expensive.)

At the bottom of this page is a complete list of our frequently asked foundation questions and their answers.

BASEMENTS

Fax or email your sketch to us and we will call with questions and a price quote. Ai can provide plans for most types of basement wall systems utilizing concrete or block including insulated concrete forms or precast basement wall panels. To complete the basement designs, a local engineer is hired to calculate the load of the dome and its interior floors to determine joist size and spacing and wall design.  Ai then incorporates his designs into your building plans.  Call our office at 321-639-8777 for engineer pricing.

Since we are a manufacturer of dome housing kits, Ai does not manufacture or build basement walls.  Contact a local subcontractor that does that kind of work.

Full basements are the same size and shape as the dome first floor. The multiple sided foundation for the dome can cost 15% to 25% more to construct than a conventional slab.

The below ground basement can have the slab poured first with the exterior basement walls built on top of the slab or the footings can be poured separately with the exterior basement wall built on top of the footings and then the slab poured inside the basement wall. Basement walls are usually 8″ thick when made of poured concrete but will likely increase depending on the height of the basement wall and the height of the backfill.

When the dome is built on a basement, the first floor framing of the dome is typically built with wood 2×10’s which are supported by the concrete basement walls. You can use wood, steel or manufactured trusses for the floor joists. The EPS insulation of the riser panels rests on the wood floor. Concrete is placed between the basement wall and extends up to join with the concrete of the panels. At the corners of the basement wall a column of concrete is formed that will extend up to the reinforced seams between the riser panels. Rebars are anchored in the basement concrete wall corners and are positioned to extend up through this concrete column into the riser wall vertical seams. When the concrete is in place the entire load of the dome bears on the concrete and not on the wood framing.

PILINGS AND PLATFORM

Have you checked with your local building department to see what they require your house be built on? If you live near the ocean or water, the building department may require concrete pilings which are usually driven 10′ to 15′ down into the ground versus concrete columns that only go down about 3′ into the ground. When there is a potential for waves of water washing dirt out from under your house, the local building department usually requires pilings. If your property is within a few hundred feet of the ocean or gulf then it is the federal government that decides what foundation type your house will have. If you have neighbors that are currently building, ask them what foundations they are utilizing.

Whether you use concrete pilings or concrete columns, Ai can design a wood platform for under the dome and a deck made out of plastic wood or pressure treated wood with the assistance of a local engineer.  Call for engineer pricing. Or Ai can design for a concrete platform. Remember your building department will require the piling and platform plans and the dome plans to be engineer sealed. These seals can be purchased through us.

CONCRETE SLAB

Slabs poured for Dome   Dome House on Slab Same Dome  


CONCRETE PILINGS AND CONCRETE PLATFORM

Pilings with oval Concrete Platform

for 40′ Dome Home

 

Ai Concrete Dome Home with Cupola Built in Mid 80’s. Cupolas look different now…not so tall with overhang panels extending out from the top panels.
Ai does not recommend raised seams, install flat or rounded seams.

DOMES BUILT ON BASEMENTS

8″ thick solid concrete
basement walls for 34′ Dome
First Floor wood joists

 

34′ Dome Home
on Poured Concrete basement wall

Back view of same dome Front view of same dome with basement entrance.

 

 Interior View looking down into basement from second floor of 45′ Dome.

Exterior View of the same  basement
showing 45′ Dome House

34′ Dome Home on Basement

Foundations For American Ingenuity’s
Geodesic Dome Building Kits

American Ingenuity domes can be built utilizing the same foundation choices as conventional housing. To view a file that summarizes foundation types, click on Foundation Summary.

The foundation types that Ai designs are:

  1. A monolithic concrete slab
  2. Poured footing with a stem wall and then a poured slab on fill
  3. Poured footing with a stem wall and then a raised wood floor
  4. Basement – concrete block, ICF (Insulated Concrete Forms), poured on site or poured walls brought in
  5. Plings and a platform or columns and a platform

The type of foundation you build depends on which is more advantageous for your area and what your building department requires.

The standard foundation that comes with Ai’s building plans is a concrete slab. For Ai to design any other foundation other than concrete slab, a local engineer is hired to calculate the load of the dome and its interior floors to determine joist size and spacing and wall design.  Ai then incorporates his designs into your building plans.  Call our office at 321-639-8777 for engineer pricing.

If you have any question about your soil’s suitability, consult with someone locally possibly your building department or soil’s engineer. Our dome’s foundation does not require anything more than 2000 lbs. per sq.ft. soil bearing capacity. Basically if you can build a regular house on your soil, you can certainly build a dome.

Stock building plans sold by American Ingenuity utilize a concrete slab foundation. For stock plan pricing and plan information, click on Stock Plan Pricing, Building Options and Building Plans. For raised wood floor designs or other designs call or email for a quote.

American Ingenuity’s stock building plan pricing is for two sets of Building Plans that contain all blueprints typically provided with any type of housing and include floor plans, exterior elevations and dome shell section view, top view showing panel placement, floor joist framing plans, structural details, and locations of plumbing and electrical fixtures. Plumbing, electrical and HVAC diagrams are not provided.  Contact us at 321-639-8777 Monday through Friday 9 to 5 eastern time.

The following are some of our most asked foundation items:

  • Ai can replace a concrete slab foundation with a raised wood floor and design the first floor joist. 
  • The Foundation Building Plan sheet states footer depth and is determined by your type soil or if there is a frost line. Ai’s standard footer is 20″ tall by 16″ wide with 4″ concrete slab.  However if your soil does not test to 2,000 psf, Ai can design your footer larger with a thicker slab based on your soil report’s recommendations.
  • All foundations are designed and laid out with hook tie down rebar in the bottom riser horizontal seams, rebar into each of the riser wall seams and a rebar extends up in the front and back of each entryway riser panel, first floor door dormer and other areas.  The building plans are specific about rebar locations and size.  The riser seams are filled with concrete as the dome kit is assembled. Once the riser wall seams (horizontal and vertical) are filled with concrete the dome is secure to the slab. The riser panel placement is based on an radii dimension that is taken from the center of the floor to the inside surface of the riser panels. When the riser panel’s bottom seam areas are filled, the concrete continues along the side of the foundation. If your dome is built on a basement or pilings or columns, rebars are designed to come up into each riser wall seam from the basement walls, pilings or columns.
  • Ai’s dome is lighter than most other buildings; as a result it has less loading on the foundation.
  • Basement Plans are available. 
  • The multiple sided foundation of the Ai dome causes its cost to be 15% to 25% more than a conventional slab.
  • The concrete slab perimeter can be insulated if code allows.  For example in some areas in Florida perimeter insulation is not permitted due to termites.  

I think I need to build my foundation off the ground.

First of all, how high off the ground does the first floor have to be? If you do not know this answer, call your building department and ask them.

If your dome has to be eight feet to ten feet off the ground:

  • Due to a wave of water not rising water, then the dome can be built on concrete columns and a concrete patform. If you want enclosed rooms or a garage under the platform, then break-a-way walls can be installed.
  • Due to rising water, build the dome on an above ground basement or build concrete block columns under the corners of the platform.

If your dome has to be raised two to three feet, may be best to bring in fill, compact the fill and construct the concrete slab onto the fill.

If your dome has to be raised two to three feet, build a stem wall:

  • Bring in fill dirt to fill within the stem wall and pour a concrete slab onto the fill and build a stem wall. (most economical and energy efficient)
  • Install a wood floor that sets on piers and beams. You would have a crawl space. (This is more expensive.)

BASEMENTS

Fax or email your sketch to us and we will call with questions and a price quote. Ai can provide plans for most types of basement wall systems utilizing concrete or block including insulated concrete forms or precast basement wall panels. To complete the basement designs, a local engineer is hired to calculate the load of the dome and its interior floors to determine joist size and spacing and wall design.  Ai then incorporates his designs into your building plans.  Call our office at 321-639-8777 for engineer pricing.

Since we are a manufacturer of dome housing kits, Ai does not manufacture or build basement walls.  Contact a local basement wall subcontractor for construction estimates on the various types of basements to determine which type wall to have Ai design.

Full basements are the same size and shape as the dome first floor. The multiple sided foundation for the dome can cost 15% to 25% more to construct than a conventional slab.

The below ground basement can have the slab poured first with the exterior basement walls built on top of the slab or the footings can be poured separately with the exterior basement wall built on top of the footings and then the slab poured inside the basement wall. Basement walls are usually 8″ thick when made of poured concrete but will likely increase depending on the height of the basement wall and the height of the back fill.

When the dome is built on a basement, the first floor framing of the dome is typically built with wood 2×10’s which are hung on the side of the basement walls.

PILINGS AND PLATFORM

Have you checked with your local building department to see what they require your house be built on? If you live near the ocean or water, the building department may require concrete pilings which are usually driven 10′ to 15′ down into the ground versus concrete columns that only go down about 3′ into the ground. When there is a potential for waves of water washing dirt out from under your house, the local building department usually requires pilings. If your property is within a few hundred feet of the ocean or gulf then it is the federal government that decides what foundation type your house will have.

Whether you use concrete pilings or concrete columns, Ai can design a wood platform under the dome and a deck made out of composite materials, plastic wood or pressure treated wood with the assistance of a local engineer.  Call for engineer pricing. Or Ai can design for a concrete platform. Remember your building department will require the piling and platform plans and the dome plans to be engineer sealed. These seals can be purchased through Ai.

CONCRETE SLAB

Slabs poured for Dome   Dome House on Slab Same Dome  


CONCRETE PILINGS AND CONCRETE PLATFORM

Pilings with oval Concrete Platform

for 40′ Dome Home

 

Concrete Dome House with Cupola Built in Mid 80’sCupola’s look different now…not so tall and there are now overhangs that extend out from the top panels.
Also these raised seams collect water. Install
flat or rounded seams; not raised.

 

DOMES BUILT ON BASEMENTS

8″ thick solid concrete
basement walls for 34′ Dome
First Floor wood joists
set on top basement walls

 

34′ Dome Home
on Poured Concrete basement wall

Back view of same dome Front view of same dome with basement entrance.

 

 Interior View looking down into basement from
second floor of 45′ Dome.

Exterior View of the same  basement
showing 45′ Dome House

34′ Dome Home on Basement