We get questions all the time about how Stoneform is installed, what we mean by a "floating floor", and the different requirements for subfloors in order to install Stoneform in your home. In this post, we'll dive into what a floating floor is, and the different types of subfloors suitable for Stoneform installation.
What is a floating floor?
A floating floor is a type of flooring installation where the planks are not adhered directly to the subfloor. Instead, the planks lock together using a tongue and groove mechanism. In this way, the floor "floats" above the subfloor. Because of the nature of floating floors, they can be installed over existing floors in many cases, and are ideal for DIY installations.
Requirements for subfloors
In order for your flooring to last and continue to look beautiful, there are certain requirements for subfloors and installation so bowing, cracking, or molding doesn't occur.
- Subfloors must be hard, dense, and free from powder or flaking
- There must be 1/4" expansion gap around all fixed vertical surfaces
- Subfloors cannot have any flooring deflection more than 3/16" in an 8' span
- Holes, grooves, and expansion joints must be filled with Portland cement
- The surface must be in good condition with no signs of excessive moisture
What subfloors are suitable?
Concrete
As long as your concrete meets moisture emission requirements (less than 5 lbs per 1000 sqft for 24 hours with relative humidity less than 85%), it's suitable as a subfloor. However, you must place a 6mil moisture barrier underneath your Stoneform.
Tile
Tile, terrazzo, marble, and ceramic are all suitable as a subfloor for Stoneform. Just make sure grout lines are no deeper than 1/16 of an inch and there are no signs of excessive moisture.
Hardwood
Unfortunately, hardwood is not suitable as a subfloor for floating floors. Do not install Stoneform over hardwood: moisture from the subfloor can be trapped in the hardwood and result in dangerous mold.
LVP/LVT
If your LVP or LVT is permanently fastened to the floor with glue or mortar, you're good to go. Stoneform, however, cannot be installed over floating surfaces. If it's not glued down, it's not suitable.
Radiant Heated Systems
Stoneform is compatible with in-floor radiant heating systems, as long as the subfloor tempurature stays below 85 degrees F. Tempurature must also be gradually increased to desired settings to protect the Stoneform from getting too hot.
Conclusion
If you have any questions or concerns regarding your subfloor and how to best prepare it for Stoneform installation, contact us. At Hewn, we're here to walk you through the flooring process from buying samples to installing your flooring and beyond. We enjoy providing our expertise so you can enjoy your Stoneform for decades to come.