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PolyLevel Soil Injection Tools and Supplies

EVERBRACE WALL RESTORATION SYSTEM

Technical Document and Specifications

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EverBrace™ Wall Restoration System

The EverBrace Wall Restoration System’s primary function is to laterally support weak and deteriorating basement walls. The system can also be used to provide supplemental support for vertical gravity loads or other forces considered by the designer based on the demands of the project.

Many foundation repair options, including anchors and steel beams, have difficulty being used with older types of wall construction such as brick, clay block, field stone, or even highly deteriorated and broken poured concrete or concrete block. Such repair options provide points of support to specific areas of a foundation wall and, therefore, still rely on some strength from the existing wall to distribute the resisting force.

The EverBrace system (Figure 1.1) utilizes expanding spray polyurethane foam (SPF) to fill the void between the new EverBrace wall panels and the foundation wall and, working in concert with the wall panels, provides a great deal more coverage area. The foam also swells

to match the surface contours of both the wall panels and the wall itself, which can be highly variable on these older wall types. Many older structures also include framing details that are far less standardized. Since the EverBrace system uses custom blocking and connection details, many of these challenges can be overcome.

Installation details will vary depending on project-specific conditions and demands. Evaluation of the system components and their connections to the structure is at the discretion of the designer, but most installations on wall heights up to 8 feet and unbalanced fill heights up to 7 feet will utilize beams spaced at 4 feet on-center and cast-in-place footings of either 18 or 20 inches cubed. A library of common details can be found on our website at OnStableGround.com, within the Technical Information/Product Drawings tab.

Advantages

• Can be used with brick, stone, clay block, or other foundation wall types that are difficult to stabilize with other foundation repair systems

• Designs can be customized for unusual or complex geometry

• Components are galvanized or electrozinc plated for corrosion resistance

• SPF foam provides significant insulation as an auxiliary benefit

• Provides an attractive, industrial finish• Traditional finished surfaces with stud framing can be

installed around the system• Can be installed in conjunction with a compatible

waterproofing system Figure 1.1 Rendering of completed EverBrace installation

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Installation Steps

The following steps provide a broad overview for typical EverBrace system installations. Intermediate steps, installation equipment and tools used, and considerations for unusual framing conditions or unique wall obstructions are not addressed. Optional base and footing details, as well as other top connection details to the existing floor framing, may also be considered.

Step 1Install wood blocking (Figure 1.2).

Step 2Place vapor barrier against wall (Figure 1.3).

Figure 1.2

Figure 1.3

Figure 1.4

Figure 1.5

Step 5Remove concrete and excavate soil for the required size of footing (Figure 1.6).

Step 5 — AlternateWhen supporting only lateral loads, a bracket may be bolted to a competent concrete floor slab — See Note, page 4 (Figure 1.7).

Figure 1.6

Figure 1.7

Step 4Hang corrugated steel wall panels from top track (Figure 1.5).

Step 3Secure steel top track to the floor framing system and new wood blocking above (Figure 1.4).

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Step 8Install flat trim pieces at the bottoms of the wall panels (Figure 1.10).

Step 6Cut steel support beams and secure to top track (Figure 1.8).

Figure 1.8

Step 7Place concrete footings (Figure 1.9).

Figure 1.9

Figure 1.10

Step 9Fill void between wall panels and supported wall with specified polyurethane foam (Figure 1.11).

Figure 1.11

Step 10Install trim pieces at wall corners and around window and door openings (Figure 1.12).

Figure 1.12

A popular system variation involves replacing the cast-in-place

concrete footings with a steel bracket that is fastened to the

concrete floor slab. This option is available for installations

intended exclusively to resist inward pressure from the foundation

wall and must have a structurally competent concrete slab with

a minimum thickness of 3.50". This variation is not available for

systems intended to provide supplementary support for vertical

gravity loads or any other types of forces (Figure 1.7).

Note:

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EverBrace™ Wall Restoration System Technical Specifications

Steel Beam:9' long W6x8.5 ASTM A572 Grade 50Electrozinc plated per ASTM B633 or

Galvanized per ASTM A123Section Properties:

Wall Panels:20 gauge 3' x 10' 1.5B deck with

nested side-lap, ASTM A653 Grade 50Pre-galvanized with G60 zinc thicknessSection Properties:

Top Track:10 feet long 14 gauge ASTM A653

Grade 50 bent plateElectrozinc plated per ASTM B633 or

Galvanized per ASTM A123Section Properties:

Trim Pieces:20 gauge ASTM A653 Grade 33 L2x2 and L3x3 angles

8 feet long and 8" plate 4 feet longElectrozinc plated per ASTM B633

Optional Bottom Bracket Assembly:3/8" ASTM A572 Grade 50 L-shaped bent plate

1.75" x 1.88" x 7.25" long with holes for concrete anchors(2) Ø1/2" x 3" concrete screw anchors Allowable horizontal shear load = 4.0 kips

(minimum slab thickness of 3.50" and a minimum concrete strength of 2,500 psi)

Self-Drilling Screws:#12 x 1-1/4" long zinc plated with 12-24 thread, 5/16"

hex head, and #5 drill point

Polyurethane Foam Fill:HandiFoam E84 HFO SPFDensity = 2.0 lb/ft3 (free-rise) and 2.3 lb/ft3 (in-place)R-Value (1.0" thickness) = 6.1Compressive Strength = 20 psi VOC Content = <25 g/L (minus water and exempt compounds)ASTM E84 Fire Rating (3.0" thickness) = Class A

Flame Spread Index = 10 Smoke Developed Index = 450

Tested in combination with the EverBrace Wall Restoration System in accordance with NFPA 286.

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5.83 in

0.170 in

3.94 in

0.260 in

14.9 in4

5.10 in3

2.43 in

5.73 in3

1.99 in4

1.01 in3

0.890 in

1.56 in3

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0.219 in4/ft

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