Minnesota summers bring a dramatic shift in the weather. We go from months of freezing, dry winter air to heavy, tropical humidity that settles over the Twin Cities metro area for weeks at a time. While you notice this sticky summer weather the moment you step outside, your home is also reacting to the moisture in the air.
Humidity doesn't just stay outside or hover in your living spaces; it sinks deep into the structure of your house, including your subfloor. Whether your home sits on a concrete slab foundation in a Woodbury basement or has a traditional plywood subfloor in a classic Bloomington split-level, these base layers absorb environmental moisture. If you are planning a summer flooring renovation, understanding how this moisture affects your new floors is the key to a successful project.
Why Hardwood and Luxury Vinyl Plank Must Breathe
Before a new floor can be fastened or clicked together, the material needs time to adjust to the specific environment of your home. This process is called acclimation. It requires opening the flooring boxes and letting the planks sit flat inside the rooms where they will be installed. This allows the new material to breathe and match the humidity baseline of your house.
Natural hardwood is highly sensitive to moisture. Wood fibers act like a sponge, absorbing water vapor from the humid summer air and expanding. While luxury vinyl plank (LVP) is waterproof and far more dimensionally stable than raw wood, the planks can still expand or contract slightly based on environmental changes and the movement of the subfloor underneath them.
Skipping this waiting period causes serious structural problems down the road, but it also carries a major financial risk. Flooring manufacturers have strict, specific requirements for how long their products must acclimate before installation. If you rush the process and install the floor straight out of the delivery truck, you risk completely voiding your product warranty. Taking a few days to let the material adapt protects your investment and ensures your warranty remains valid.
How Proper Timing Prevents Peaking and Gapping
When new flooring is installed without acclimating first, it is usually forced into place while it is either too dry or too swollen. Once the seasons shift, the planks will try to adjust naturally, leading to visible damage across your room.
Peaking: If dry planks are installed during a humid June without acclimating, they will absorb the summer moisture and expand. Because they have no room to move, the planks will push against one another until the edges warp upward, creating raised ridges at the seams.
Gapping: Conversely, if wood flooring is installed while it is swollen with summer humidity, it will shrink significantly when the dry winter heating season arrives. As the wood contracts, it pulls apart, leaving wide, permanent gaps between the boards.
Allowing the subfloor and the new flooring to reach a balanced moisture level prevents these structural shifts from ruining your smooth floor.
Expert Installation for Your Twin Cities Home
You do not have to guess about moisture levels, timelines, or manufacturer specifications on your own. Managing a summer flooring upgrade requires careful preparation, but our experienced team handles the stressful logistics for you.
Our professional installation teams take care of the entire process from start to finish. We inspect your subfloor, check the environmental conditions in your home, and manage the delivery and acclimation schedule so your project is executed correctly. We make sure every detail is covered before a single plank is laid down, giving you total peace of mind that your new floors are built to last through every Minnesota season.
If you are ready to start planning your summer renovation, contact us today to discuss your project, or stop by our warehouse showroom to view our in-stock selections.
