What Is Rigid Core Flooring?
Rigid core flooring is the innovative vinyl flooring for today's demanding consumers. Available in both plank and tile shapes, it's a luxury material that can stand up to a lot of abuse, including water.
To understand rigid core, you have to move beyond the vinyl flooring you're familiar with. Standard vinyl flooring is a fairly thin, flexible material that is glued down to the sub floor. Rigid core is stiffer, thicker and sturdier, which gives it some unique advantages. One of its most-hyped pluses is its ability to handle water, but that's not the only check in the “pro” column. It can also handle sub floor imperfections, offer excellent sound insulation and superior comfort underfoot.
Here's where we get to the technical jargon: The assorted positives of vinyl plank flooring (or vinyl tile) depend on whether you go with a WPC or SPC construction.
How WPC and SPC Come into Play
Like engineered hardwood, luxury vinyl plank flooring is constructed from layers of material—typically four, though that can vary between manufacturers. Let's look at the different layers, starting with the surface:
Layer #1 is the wear layer. It's clear, durable and scratch-resistant.
Layer #2 is the vinyl layer, composed of multiple, compressed layers of vinyl. This layer facilitates the authentic embossing technology applied to the printed decorative film that lies between the wear layer and this vinyl layer.
Layer #3 is the rigid core layer. It's made from either wood plastic composite (WPC) or stone plastic composite, also referred to as a solid polymer core (SPC).
Layer #4 is the base layer. This is the bottom of your plank or tile, and it's usually made from foam or cork.
Many WPC and SPC options also feature an attached pad (underlayment) that provides sound absorption and allows for under floor heating systems.
What Is WPC?
Wood plastic composite flooring, or WPC flooring, is a vinyl plank or vinyl tile flooring with a rigid core that's made from either recycled wood pulp and plastic or polymer composites that are expanded with air. It's sometimes called “wood polymer composite flooring.” It is a light weight, low density construction that is warm and soft underfoot with greater comfort.
Stone plastic composite, solid polymer core, or SPC flooring, is a vinyl flooring material that has a rigid core made from powdered limestone, polyvinyl chloride and stabilizers. Sometimes, you might see it referred to as “stone polymer composite flooring.” It is dense, dimensionally stable, quiet and strong. Pure from Beauflor are great options in this category and both include an attached pad.
SPC and WPC – Key Differences to Know
Similar to dryback luxury vinyl flooring (which is the traditional type of luxury vinyl that requires an adhesive to install), SPC and WPC flooring are comprised of multiple layers of backing that are fused together. However, unlike dryback flooring, both flooring options feature a rigid core and are a harder product all around.
Because SPC’s core layer is comprised of limestone, it has a higher density in comparison to WPC, though is thinner overall. This makes it more durable compared to WPC. Its high density offers better resistance from scratches or dents from heavy items or furniture being placed on top of it and makes it less susceptible to expansion in cases of extreme temperature change.
One important thing to note is that although SPC and WPC are often marketed as being waterproof, they are actually water resistant. Though neither product is entirely waterproof if submerged underwater, topical spills or moisture should not be an issue if properly cleaned in a reasonable amount of time.
Applications
Rigid core products including WPC and SPC were originally created for commercial markets because of their durability. However, homeowners have started using rigid core as well because of its ease of installation, design options and durability. It is important to note that some SPC and WPC products vary from commercial to light commercial use, so it is best to always consult your manufacturer to know which warranty applies.
Another highlight for both SPC and WPC, aside from their easy-to-install click locking system, is that they do not require extensive subfloor prep prior to installation. Though installing over a flat surface is always a good practice to be in, floor imperfections like cracks or divots are more easily hidden with SPC or WPC flooring due to their rigid core composition.
