Rhino Carbon Fiber | Bowed Walls

Bowed Walls

Bowed Walls


Any foundation wall that has inward or outward movement causing the wall to lean or buckle.


Foundation walls can bow for a variety reasons. It can occur due to the age of the structure, poor construction, or water pressure. Bowed walls are commonly seen in older homes due to years of repetitive freeze and thaw cycles and soil settlement. Sometimes, large roots and trees put added pressure on the foundation walls.

Sometimes a bowed wall is caused by poor construction. When a house is built in inadequate conditions, such as lack of rebar, improper drainage system, improper backfilling and negative fall on grading, etc., it will cause the foundation to bow.

Hydrostatic (water) pressure building up in the soil outside of the house is the most common cause of a bowing foundation wall. When the ground freezes and then thaws, it expands and contracts the water in the soil. This results in the soil pushing against the foundation wall. This is why the most common form of a bowed wall is just below the frost line.


Rhino Carbon Fiber® wall supports are a great solution for bowing walls. The patented system is the strongest system on the market because it ties to the foundation base and the house framing.

The carbon fiber is fastened to the sill plate with a galvanized bracket and secured to the foundation floor with a carbon fiber pin. Deterioration does not occur because the carbon fiber system is secured to the foundation wall allowing for an even distribution of outside pressure. Carbon fiber works on both block and poured concrete foundation walls to repair not only bowing walls but also all types of foundation cracks.

Carbon fiber wall supports are installed from the inside of the basement so it is less intrusive and less expensive than other repair options. There is no digging into the yard and carbon fiber is a clean and fast installation.

The final finish is smooth, flat, and nearly invisible when painted. The repair is maintenance-free and can be covered without taking square footage from a basement remodel.

The Rhino Carbon Fiber system is also perfect to install on a bowing wall in your crawlspace. It’s easy to install in tight locations and the footer is already exposed in a crawlspace which will ensure exact connecting to the footer of your home.

Rhino Carbon Fiber Bowed wall illustration

How is Rhino Carbon Fiber installed

In just 8 simple steps (Video Included)


Preparation marking


a.Lay plastic or drop cloth around work surface

b.Measure and mark locations of the straps

c.Grind the vertical length of the foundation wall where carbon fiber strap will be installed. Remove paint, coatings and glossy surfaces to achieve a “Bare Foundation” (Even uncoated blocks need to be ground to expose aggregates.)

d.Round top corner of block where strap will be located

e.Carbon Fiber strap should span from sill plate to floor

f.Remove caulk/latex/loose mortar/etc. from mortar joints

g.Use opposing motor joints as a guide

*Read and follow all EPA and OSHA safety practices

ToolsMarker, measuring tape, plastic or drop cloth, grinder

illustration of a wall with rhino carbon fiber

• 01: Sill Plate • 02: Sill Plate Bracket • 03: Carbon Fiber Strap • 04: Carbon Fiber Pin • 05: Concrete Floor• 06: Obstacle • 07: Adjust spacing as necessary to avoid obstacles • Max spacing is 2’ o corners and 4’ on center across the wall.



a.Repair all cracks by using hydraulic cement or RCF Structural Epoxy Injection Resin before installing carbon fiber

*Wall must be completely bare and clean with cracks/deep morter joints filled before applying carbon fiber

*Check our Rhino tuck point instruction video on YouTube for reference

ToolsHammer drill, hydraulic cement or RCF Structural Epoxy Injection Resin



a.Pre-mark drill holes with pencil or pen for the Sill Plate Bracket

b.Make sure sill plate bracket is level with top of foundation wall

*An uneven Bracket could cause splitting and damage to the sill plate

c.Pre-drill holes using a power drill with a 1/4” drill bit

d.Pre-drilled holes will ensure a secure connection between the carbon fiber, sill plate bracket and the sill plate

ToolsPencil/pen, power drill with 1/4” Bit



a.Using a hammer drill, pre-drill a 3/4” hole at the center of the prepped carbon fiber location

b.Drill hole as close to vertical as possible right against the wall.

c.If the floor is sound, pinning to the floor is sufficient.

d.If the floor is being removed or is deteriorated, remove floor and pin to the footer.

ToolsHammer drill.

Drill Footing


TIP: Lay carbon fiber on piece of cardboard

a.Apply epoxy to the top 8” of the carbon fiber, spread epoxy so that strap is saturated

b.Lay bracket flush with top of carbon fiber

c.Roll bracket and carbon fiber twice to ensure the wrap is tight

ToolsTape measure, latex gloves and epoxy gun



a.Mount saturated carbon fiber covered Sill Plate Bracket

b.Check level of Sill Plate Bracket to ensure a secure fit to sill plate

c.Fasten Sill Plate Bracket to the sill plate using (2) 3/8” x 2” lag bolts

ToolsDrill, level, lag bolts and flat washers

MountLift Rhino Carbon Fiber Strap & Apply Epoxy to wallSqueegee epoxy to foundation wallApply Rhino Carbon Fiber Strap & Coat with epoxy


Tip: roll carbon fiber and sit on sill plate so that it is out of the way

a.Apply epoxy to the wall per the diagram below

b.Once a sufficient coating of epoxy is applied to foundation wall, lay the carbon fiber strap over the applied epoxy making sure that the carbon fiber strap is straight and tight

c.Apply epoxy on top of the carbon fiber and lightly spread the epoxy with a putty knife

Tools & HardwarePutty knife, gloves, epoxy adhesive, epoxy gun, static nozzle

EpoxyApply Epoxy to holeApply Epoxy to holeillustration of a wall with rhino carbon fiber

• 01: Fold and twist end of carbon fiber strap to make pin
• 02: Fill hole with epoxy and place carbon fiber twisted pin inside hole
• 03: After pin is inserted, make sure strap is tightly adheared to wall
• 04: Top off hole with epoxy** When waterproofing, or if floor is deteriorated, the strap can be
pinned to the footer.


a.Secure bottom of the carbon fiber strap as per the diagram below

b.If there is extra carbon fiber, cut the excess at this time. Leaving bottom 8” beyond the bottom of the wall

c.Fill the hole with epoxy and saturate the remainder of the strap

d.Fold bottom of strap to make a point (triangle tip) then twist to create the pin

e.Insert pin into hole and top off with epoxy


f.Use light strokes with putty knife to spread epoxy evenly, focusing on the edges for a clean and secure installation

g.Make sure the strap is tightly adheared to the wall all the way to the floor

ToolsEpoxy, Caulk Gun & Squeegee