- PLACING FOOTING PER FROST DEPTH HOW TO
- PLACING FOOTING PER FROST DEPTH INSTALL
- PLACING FOOTING PER FROST DEPTH GENERATOR
- PLACING FOOTING PER FROST DEPTH CODE
Can we specify the bottom of the footing above the frost depth?
PLACING FOOTING PER FROST DEPTH HOW TO
This has become long-winded, but the short of it is I'm trying to figure out how to respond to this contractor.
PLACING FOOTING PER FROST DEPTH GENERATOR
What's the worst that would happen if the footing is not below frost depth? Their generator slab cracks a bit?
PLACING FOOTING PER FROST DEPTH CODE
But I'm wondering if this is only for heated structures? Does this still apply to a couple concrete walls that just sit outside and enclose a generator? I haven't been able to find any code language that allows you to not place the footing below the frost depth. The only rebuttal I have is that the bottom of the footing needs to be below the frost depth, measured from the top of the grade. At a 1:1 cut, they've now saved 7 inches of horizontal cut as well (we're really reaching here). slab), which would reduce their excavation by about 7 inches. slab) or even at the same height as the footing (t.o. The contractor would like to pour the slab directly on top of the footing (t.o. This is standard for the frost depth in our area.
PLACING FOOTING PER FROST DEPTH INSTALL
Of course, the contractor would rather not install the soldier piles, so we are currently looking at ways to reduce the excavation cut so that the excavation stays away from the property line.Ĭurrently, the bottom of the footing for the retaining wall is 16" below the slab-on-grade. The proposed location of the generator pad is very close to the property line, so we've designed a few soldier piles for the contractor to install temporary shoring. It consists of a couple retaining walls that retain 3 ft max, with a slab-on-grade to support a back-up generator for the client's house. Table to § 3285.I am working on a very simple structure for a generator enclosure. When an end pier under the mate-line also serves as a column pier, it may be set back a maximum of 6 in., as measured from the inside edge of the exterior wall to the center of the pier. See §§ 3285.3.311 for additional information on requirements and for locating perimeter supports.ĥ. For roof loads of 40 psf or greater, a professional engineer or registered architect must determine the maximum side wall opening permitted without perimeter supports or mating wall opening permitted without pier or other supports. Place piers on both sides of sidewall exterior doors, patio doors, and sliding glass doors under porch posts, factory-installed fireplaces, and fireplace stoves under jamb studs at multiple window openings and at any other sidewall openings of 48 inches or greater in width. End piers under main I-beams may be set back a maximum of 24 inches, as measured from the outside edge of the floor to the center of the pier.Ĥ. In addition to blocking required by § 3285.311, see Tables 2 and 3 to § 3285.303 for maximum perimeter blocking loads.ģ. Refer to Table 1 to § 3285.303 for pier and footing requirements when frame blocking only is used.Ģ. Column piers are in addition to piers required under full-height mating walls.ġ. Prefabricated piers must not exceed their approved or listed maximum horizontal or vertical design loads.Ĩ. In areas where the open span is greater than 10 ft., intermediate piers and footings must be placed at maximum 10 ft. When a full-height mating wall does not support the ridge beam, this area is considered an unsupported span - Span B.Ħ. For roof loads of 40 psf or greater, a professional engineer or registered architect must determine the maximum mating wall opening permitted without pier or other supports.ĥ. Place piers on both sides of mating wall openings that are 48 inches or greater in width. Piers are not required at openings in the mating wall that are less than 48 inches in width. Single stack concrete block pier loads must not exceed 8,000 lbs.Ĥ. in either direction along supported members to allow for plumbing electrical, mechanical equipment, crawlspaces, or other devices.ģ.
Bottom of footings must be below the frost line depth, unless designed for placement above the frost line.
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