Foundations for Ai Domes
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.
Concrete slabs poured for 45′ dome linked to 34′ dome
Forms in place, footers being poured. 45′ dome.
Finishing slab for 45′ Dome.
Finishing slab for 45′ dome.
Vertical Rebars at corners to extend between two risers
or where riser meets entryway or door dormer base panel
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:
- A monolithic concrete slab
- Poured footing with a stem wall and then a poured slab on fill
- Poured footing with a stem wall and then a raised wood floor
- Basement – concrete block, ICF (Insulated Concrete Forms), poured on site concrete basement walls or poured concrete walls brought in and assembled on site.
- 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.
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.
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
34′ Dome Home
|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