Any wall that is experiencing top, bottom, or center wall movement needs to be stabilized or the wall could continue to move, breaching the structural integrity of your foundation. Fortress carbon fiber has been tested and approved by certified independent testing facilities to solve this problem. Fortress carbon fiber was one of the first wall stabilization products to be approved and used in residential applications and has a 20-year history of proven success. Fortress carbon fiber is the leader, the best performing carbon fiber product, and has the longest installation history in the marketplace. Ask any independent structural engineer to compare our product to any competitors product and you will see that ours is preferred 9 times out of 10.
Most basement walls begin to crack and bow after 60 psi of wet soil (hydrostatic) pressure has built up against the basement walls. Properly installed, Fortress carbon/Kevlar grid straps enable a block wall to withstand 10 times more than the maximum pressure expanding soil can exert. Our top and bottom wall anchors have also been engineered and tested to vastly exceed the required strength necessary.
TOP WALL ANCHORING:
Typically when a home is constructed the builder includes top wall anchors in the construction. These anchors tie the house framing to the block wall along the length of the wall. Sometimes you can physically see these anchors sticking up through the sill plate from the block. When your wall has these anchors installed by the builder, the wall normally cannot move inward at the top and outside soil pressure usually cannot break this bond. Instead, hydrostatic pressure will cause buckling and cracking along the middle of the wall and often near the corners. For homes sufficiently anchored by the builder, extra anchoring at the top is unnecessary. If the builder has not installed these anchors or installed too few of these anchors and the top of the wall is moving, Fortress offers a high-strength (adjustable tension) anchor solution. This patented top wall anchor far exceeds the strength requirements needed to stabilize any top wall movement.
BOTTOM WALL ANCHORING:
Bottom wall movement is typically seen once the bond strength of the cement holding the block together has been exceeded. The bottom block cannot move as it is locked in place by the concrete floor. The second block up will begin to move inward, usually when there is not enough house weight on the wall to resist outside pressure. If there is no discernible inward movement the bottom of the wall can easily be locked in place with the vertical carbon fiber strap overlapping the two blocks and carried all the way to the floor. Additional bottom wall strength is obtained by anchoring the carbon fiber grid strap into the floor with structural epoxy. The lower wall can additionally be anchored when the wall has not shifted by installing patented Fortress carbon fiber staples into the very bottom block. Once there are signs of bottom wall shifting sometimes it is necessary to stop this movement with an engineered structural repair. Steel rod and high strength concrete are used to overlap the joint between the bottom and second block up from the bottom, effectively making them one continuous block. We have an engineered design for this repair. A trained and certified EBR representative can determine which of these options is appropriate for any particular situation.
In addition to the strap, there are two keys to a strong and lasting carbon fiber repair, the structural epoxy, and proper installation. Fortress carbon fiber products are only available to professional installers whose employees have participated in extensive training, testing and who obtained their certification. Expert Basement Repair is certified by Fortress and our company and installers have more installation experience than any other company in this area. All of our repairs carry a lifetime transferable warranty from us here at Expert Basement Repair. You are also issued a separate lifetime transferable warranty from Fortress.
Fortress Bottom Staple
Top Wall Anchor after tension adjustment
Carbon Recessed Into Floor
Carbon Epoxied in Floor