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 17 year history of proven success, the longest in the industry. Fortress carbon fiber is the leader, best performing carbon fiber product with the longest installation history in the marketplace. Ask any independant 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 600 psi of wet soil (hydrostatic) pressure has built up against the basement walls. Properly installed, virtually all carbon fiber products are many times stronger than this. Fortress carbon/Kevlar grid straps are rated for 180,000 psi. The outside soil can never overcome this much strength. Our top and bottom wall anchors have also been engineered and tested to vastly exceed minimum strength requirements.
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 the top. 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 these homes, extra anchoring at the top is sometimes unnecessary. If the builder has not installed 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 normally 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 there is no obvious movement and 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 is 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.
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 we have more installation experience (16 years ) than any other company in this area. All of our repairs carry a lifetime transferable guarantee. You are also issued a separate lifetime transferable warranty that you send into Fortress. Your warranty information then goes into their database. Your repairs will be warranted regardless of the installing company….and best of all we will never send a commissioned salesperson to your home! Call us today if you have more questions.
Fortress Bottom Staple
Top Wall Anchor after tension adjustment
Carbon Recessed Into Floor
Carbon Fiber Epoxied in Floor