Claims: Underlayment vs. self-leveling

HomeColumnsClaims: Underlayment vs. self-leveling

by Lew Migliore

This column was instigated by a commercial flooring contractor who was questioned on the use of underlayment versus a self-leveling material for the installation of new car- pet tile.

The installation proposal stated underlayment was included but the customer disagreed with an additional charge for the self-leveling required for a successful installation. They felt underlayment and self-leveling materials were the same thing and were already paying for it. While both materials do go under flooring, there is a very distinct difference.

Underlayment is a separate material, such as plywood, OSB, luan, cement board or other sheet good placed over an existing wood or concrete subfloor to provide a new base or build up an existing one. It is not to be used in an installation where the substrate needs to be floated to a level surface for successful installation of a flooring material on top of it.

Self-leveling materials are typically cement products that will flow onto the surface of existing concrete, wood, terrazzo, metal or ceramic to create a smooth, even surface.

Underlayment is typically used in a residential environment when, for example, a new wood or laminate floor is installed to help both level the substrate and raise it to finish evenly with another surface.

Self-leveling materials are flowed onto substrate commonly in commercial installations to provide a level surface or a smooth transition, which underlayments may not provide.

Self-leveling materials are not underlayment and underlayment is not self-leveling material. The cost of the two is different and should be stated as separate items in a quote or proposal.

The end user’s interpretation of paying for underlayment was, to them, the same as self-leveling material. Not knowing the difference is understandable but a simple explanation and seeing what both products are should hopefully answer the question. In a proposal, include the fact that an underlayment or a self-leveling material would have to be used, explain what they are and state there is a separate charge for each.

This is nothing new—in the trade we understand the difference. Someone outside the trade does not understand the difference and you should always assume they don’t know. This will prevent contestable issues, arguments and frustration. Don’t think because you know, the customer knows.

If you’re working in the commercial arena with a general contractor, architect or specifier you could assume they know the difference between an underlayment and a self-leveler. But again, it would be in your best interest to be specific. Don’t give anyone a reason to argue. Listing what has to be done and then not having to do it is easy and delights customers as long as you’ve done a good job and they’re satisfied. Trying to add underlayment or self-leveler when you get into the job and arguing that it is needed makes you look less than trustworthy to the customer.

The real issue here is that you have to take into consideration and assume all that may have to be done to successfully complete an installation and at least make mention of its cost when pricing the job. Whether you do it or not makes no difference. You could simply state, “If we have to use a self-leveling agent this is the cost per square foot.”

Just put everything in writing and you won’t have to be bothered with this kind of problem.

Must Read

Cersaie returns to Italy with new content, layouts

Bologna, Italy—Cersaie, the international exhibition of ceramic tile and bathroom furnishings, will return here from September 22-26 with a focus on innovation, international expansion...

Susan G. Komen: Round 2

What’s that saying about going to the well once too often? Flashback one year ago. Mohawk invited me to Denver to walk alongside the team...

Flooring industry mostly positive on Trump’s spending bill

Some flooring industry executives view President Trump’s 940-page “One Big Beautiful Bill Act” as being favorable to small business for providing tax cuts and...

Style preferences reflect end-user tastes, demands

Across flooring categories evolving consumer preferences are inspiring suppliers to unveil fresh innovations and highly stylized designs. Carpet continues to see growth at the...

Commercial stats: Market challenges impact contract recovery

The commercial market experienced a year of mixed activity in 2024, with some sectors showing resilience while others struggled amid inflation-driven price hikes, shifting...

UofCTS launches sales, installation courses

San Clemente, Calif.—The University of Ceramic Tile and Stone (UofCTS) is now providing online tile and stone sales as well as installation courses designed...
Some text some message..
X