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FOUNDATION SCOPE OF WORK





Objective of this Scope of Work

► To ensure foundations and concrete walls are built to engineering specifications or better and are plumb, square, and level.

Terms used in this document

►SITE SUPERINTENDENT: shall refer to any Company representative with authority to enforce this Scope of Work.
►SUBCONTRACTOR: shall refer to the Subcontractor's organization, its employees, or any representative of the Subcontractor assigned the authority to perform per this Scope of Work.

Acceptable Performance

Foundation: General

► A new set of plans is required for each house. Plans are subject to changes and modifications. It is the responsibility of the Subcontractor to have the new plans before beginning work. The Subcontractor will correct any errors that occur from using an incorrect set of plans at no cost to Company.
► Foundations shall be built per plan and/or engineer’s specifications.
► Concrete shall be placed at an appropriate rate so that it can be spread, straightened, and finished properly.
► Concrete should not be allowed to run or be worked over long distances, and should not be allowed to drop more than 4 feet.
► Holes left by nails or line pins should be pointed while adjacent concrete is green.
► Poured concrete should not crack in excess of 1/8 inch in vertical or horizontal displacement.
► Concrete shall not pit, scale, or spall to the extent that the aggregate is exposed.
► If temporary power is not yet connected to the lot, the Subcontractor must furnish a generator. Permission of the Site Superintendent is required for drawing electricity or water from an adjacent jobsite.
► All trash and debris shall be removed from lot to dumpster or the designated trash area.
► All runoff concrete shall be removed to the driveway cut.
► No invoice will be paid until the Site Superintendent and the Subcontractor, together, have field-measured and verified all items shown on the Subcontractor’s invoice.
► Payment will be based on the field measurements and not on the amount of concrete delivered to the site.
► Any items found during the final inspection that need correction shall be corrected before payment will be made.

Foundation: Footers

► Prior to beginning to dig footings the Subcontractor and the Site Superintendent shall use the foundation plans to verify all the dimensions of the house, that all stakes are in place, that all offsets are staked, and that all lines are straight and true.
► The Subcontractor shall verify with the Site Superintendent that the staked area of the house will fit on the lot within the building lines and any easements.
► Forms shall be set per plan.
► All footings for stoops and porches shall be dug and poured as a part of the foundation for the house.
► The Subcontractor shall dig all footings. Footings may be dug by machine or by hand. They should not be over-dug, and must be of width and depth to accommodate the amount of concrete listed below.
► Footings for block foundation walls shall be dug, shaped, and concrete poured 16 inches wide by 8 inches deep for single-story structure; 16 inches wide by 8 inches deep for a two-story structure or a single-story structure on a basement; or 18 inches wide by 8 inches deep for a three-story structure or two-story structure on a basement, unless an engineer’s report requires a different size.
► Two #4 rebar shall be installed continuously in all footings at mid-point of the depth of the footing. Bending and cutting of reinforcing steel is to be done by the Subcontractor. Additional rebar may be required for engineered footings.
► The top surface of footings shall be level, all corners shall be square, and all footings shall be straight. The bottom surface of footings may not have a slope exceeding 1 inch in 10 inches. Footings shall be stepped where necessary to change the elevation of the top surface of the footings or where the slope of the bottom surface of the footing will exceed 1 inch in 10 inches.
► Footings shall be installed per engineered design.
► All concrete strength ratings shall be per engineered design.

Foundation: Poured Walls and Stem Walls

► Concrete walls shall be a minimum of 8 inches in width or larger as otherwise specified in the engineer’s specifications.
► Unless otherwise specified in the plan documents or required by code, #4 rebar reinforced steel, as a minimum, shall be placed vertically 6 feet apart and horizontally 3 feet apart throughout the foundation wall area.
► The Subcontractor is responsible for supplying and setting anchor bolts in all poured walls. Bolts shall be 1/2-inch-diameter anchor bolts placed 6 feet on center and not more than 12 inches from corners. Bolts shall extend a minimum of 15 inches into masonry or 7 inches into concrete.
► Anchor bolts shall have a clear height of 2 3/4" for 2x framing - 1 1/2" bottom plate + 1/8" sill seal + 1 1/8" minimum nut and washer.
► All walls shall be true, plumb, and square. Concrete walls shall not be out of plumb more than 1/2 inch in 8 feet.
► Concrete walls should not vary more than 1/2 inch out of square when measured along the diagonal of a 9'-0 x 12'-0 x 15'-0 triangle at any corner.
► Concrete wall variance should not exceed 1/4 inch out of level in 20 feet, with no ridges or depressions in excess of 1/4 inch within any 32-inch measurement.
► Poured concrete foundation walls shall not leak.
► There shall be no honeycombs.
► Concrete walls shall maintain structural integrity and not crack in excess of 1/8 inch in width or displacement.
► Concrete poured at temperatures at or below 32 degrees Fahrenheit (F) shall contain 2-percent calcium.
► Any concrete walls poured in conditions that have the potential for frost shall be covered with polyethylene for protection against frost damage.



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