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Room addition, Room addition builder, Custom homes, New home builder, Eco friendly General Contractor, Southern California

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Orange Innovations plan, design and build:

Most homes in southern California are built on "Slab-On-Grade" or "Raised" foundations. To ensure that the addition will look & feel an authentic part of the house, It is most recommended to maintain the same type of foundation throughout the house.

Slab-On-Grade: This type of foundation would usually include concrete slab surrounded by concrete footings, and should include all the following stages

Staking & Forming:

Lumber boards secured by stakes are being installed around the perimeter. The size, location & squareness of the slab (and subsequently the entire addition) are being determined at this highly important stage.

Grading:

The area of the addition is graded to approximately 6 inches below the level of the existing slab.

Footings:

Ditches are being dogged around and across the new pad. Depending on the city's requirements, type of soil, and height of structure: the footings are typically 24 to 30 inches deep, and 12 to 18 inches wide. Interior footing are laid under interior bearing walls.

Vapor barrier:

To prevent access of moisture from the soil onto the new slab, a 10 mil polyethylene sheet is placed over the pad & into the footings.

Vapor Barrier Material Vapor Barrier in the footing Vapor Barrier Slab Foundation

Sand bed:

2 inches of sea sand under the concrete will provide flexibility and sustainability to earth moments.

Sand Layer Under Slab flush the footings Rebar the Foundation Sand bed is being laid under the vapor barrier

Steel reinforcing bars:

1/2" Rebars (AKA #4 Rebars) are laid and tied across the slab, spaced 16 inches on center each way. The network is placed on 2"X2" concrete "Dobie" blocks, to ensure its positioning inside the slab (and not under).

#4 Rebar In The Footings Rebar System In The Slab Rebar the Foundation Rebar the Footings

Concrete Pour:

PreMixed concrete is being pumped into the ditches and over the pad. The finishers will level the "mud", and work the surface, until its dry, to ensure smooth finish.

Pouring the concrete into the footings Pouring the concrete slab Screeding concrete slab

Curing:

Slow curing concrete = stronger slab, and since Concrete is a thermal curing material (which means, it projects heat while drying), it is highly recommended to water-spray the new slab a few times a day, for the first couple of days.

Raised Foundation: There are many types of "Raised floor" systems, but the most common one in southern California these days is designed with concrete stem-wall & pier supported girders.

Grading:

The area of the addition is graded to 18 inches below the bottom of the floor joists of the new addition.

Footings:

Ditches are being dogged around to form the new footings.

Piers:

Square holes are being dogged where new concrete piers will support the girders.

Forming:

Lumber boards secured by stakes are being installed around the perimeter to form the shape on the new concrete stem walls.

Steel reinforcing bars:

Horizontal & vertical re-bars are laid and tied inside the forms to provide longitude reinfor

Concrete Pour:

PreMixed concrete is being pumped into the forms and pier holes. The finishers will work the top to ensure leveled walls.

The concrete is being poured into the pad holes

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San Diego: 888-744-4489 Woodland Hills: 818-201-7528 Irvine: 949-737-1695

Toll Free: 888-744-4489 email: info@orangeinnovation.com

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Raised Foundation: There are many types of "Raised floor" systems, but the most common one in southern California these days is designed with concrete stem-wall & pier supported girders.

Steel reinforcing bars: