Floating Slab vs Monolithic Slab: What’s the Difference?
Your foundation keeps your home safe, level, and secure, but not all foundations are alike. In Texas, floating slabs and monolithic slab foundations are common, each with different construction and repair needs.
With over 20 years of experience, we’ve handled every kind of foundation issue, from floor cracks to uneven walls.
Let’s take a closer look at the differences between floating slabs and monolithic slabs, especially when it comes to slab foundation repair.
What is a Floating Slab?
A floating slab is a flat piece of concrete that sits on the ground without being connected to deeper footings. It’s often used for garages, sheds, and small buildings. The name comes from how the slab seems to “float” over the soil.
What is a Monolithic Slab Foundation?
A monolithic slab foundation is made by pouring the footing (the base) and the slab (the floor) at the same time.
This makes a single, solid piece of concrete. It’s a strong and common choice for houses in Texas because it holds up well in our warm weather.
5 Key Differences in Repairs
Here are five important things to know about how these slabs are repaired:
Cracks
Floating slabs often crack on the surface because they lack deep support. These cracks can expand over time, especially if the soil shifts underneath.
Monolithic slabs, though stronger, may crack around the edges where the footing meets the slab. These cracks can point to deeper structural issues needing expert attention.
Soil Movement
Soil movement affects floating slabs more. Without deep footings, they shift with expanding or shrinking soil.
Monolithic slabs, built as one thick piece, handle this better. Their built-in footings keep them stable even when ground conditions change.
Water Problems
Water gets under floating slabs more easily, especially with poor drainage. Pooling water can damage the foundation over time.
Monolithic slabs resist water better, but still need waterproofing. Without it, cracks or mold may eventually appear.
Weight Support
Floating slabs don’t support heavy loads, so they’re used in sheds or garages. They aren’t strong enough for full homes. Monolithic slabs are made to carry the weight of a house, including walls, roofs, and furniture.
Cost to Fix
Floating slab repairs are simpler and usually cost less upfront. But without fixing soil problems, issues may return.
Monolithic slab repairs cost more but are longer-lasting. Investing in quality work saves money in the long run.
How We Fix Them
Floating slabs are repaired by filling cracks or re-leveling the surface. Foam injections or similar methods may be used for added support.
Monolithic slab foundation repair is more involved and often uses the Helical Pier System to anchor the slab to stable ground.
Why Homeowners Trust Top Level Foundation Repair
We go beyond surface fixes; we find the source and deliver lasting solutions. Whether it’s a floating or monolithic slab, we use proven methods like the Helical Pier System to stabilize your home.
Here’s what you get with us:
- Free estimates
- A lifetime transferable warranty
- Over 20 years of experience
- Trusted service in the Dallas–Fort Worth area
- Residential and commercial foundation solutions
Frequently Asked Questions
1. How do I know which kind of slab I have?
Check your building plans or ask a professional. Monolithic slabs have thick edges, while floating slabs are the same thickness throughout.
2. Which type is better?
It depends. Monolithic slabs are better for houses. Floating slabs work for smaller buildings like garages.
3. Are all cracks bad?
Not always. Some are just on the surface. But cracks could also mean deeper problems. It’s best to get them checked out.
4. Can I wait to fix my foundation?
Waiting can make things worse and more expensive. Fixing problems early is always smarter.
5. Do you offer warranties?
Yes! We provide lifetime transferable warranties on our foundation repairs.
Call Us Today for Reliable Repairs
If you’re noticing cracks, uneven floors, or water issues, it might be time to look at your foundation.
Whether you have a floating slab or a monolithic slab foundation, Top Level Foundation Repair is here to help.
Contact us today for a free estimate, and get the peace of mind your home deserves.