Does Linoleum Stick to Concrete Floors?

About Linoleum

• Sir Frederik Walton first invented linoleum as we know it in the mid-1850s after noticing the leathery surface forming from the linseed oil on top of a layer of paint. After tinkering with the formula, he finally came up with a mixture of linseed oil, limestone, wood flour, cork dust and tree resins that were placed upon a jute backing. The word "linoleum" comes from the Latin words "linum" (flax) and "oleum" (oil). In 1874, America started linoleum production and the product has found its place in many homes and businesses off and on since the 1950s. The ingredients of the flooring remain the same, making the product "green" because of its organic, recyclable and renewable properties.

Subfloors

• Many subfloors are suitable for installing linoleum, including concrete. You can also install it over standard plywood subfloors or existing vinyl flooring. Like other types of flooring, linoleum requires moisture-free and level subfloors to create a smooth, even and durable finish. Excessive moisture can result in lack of adhesion or a breakdown of the linoleum over time.

Testing the Concrete

• Because of concrete's natural ability to hold and release moisture, a few tests are needed before installing linoleum over the existing concrete slab. To test for moisture, tape a 12-inch by 12-inch section of polyethylene sheeting to the floor with duct tape. Ensure the entire edge is taped down so no air escapes. Wait 24 to 48 hours and check to see if any condensation is present on the polyethylene sheet or if the concrete has darkened in color under the sheet. If either issue is present, perform a calcium chloride and pH test. If neither of these issues are present, you can install the linoleum flooring, although the calcium chloride and pH test are still recommended. Purchase the calcium chloride and pH test kits from a concrete flooring or concrete tools retailer. Your slab moisture content should be less than 5 1/2-percent and have a pH of 10 or less to install linoleum flooring.

Leveling and Preparing Concrete

• For proper adhesion and a level floor, fix all the low and high spots in your concrete subfloor. For low spots, use either an embossing leveler or self-leveling floor patch. Follow the instructions and work quickly. For high spots, grind down the spots with a grinder or sander. Before grinding the concrete, tape all ducts and vents shut so that the concrete dust is not blown through the home.