In short, vinyl flooring itself can be completely self sustainable and does not require an underlayment to function properly. Another reason underlayments may be suggested for vinyl flooring is if the vinyl flooring type is thin. When the vinyl flooring is thin, it becomes a lot easier to flex and bend.
Before doing the installation, you must ensure that the floor beneath is swept clean. Sheet Vinyl flooring works best with plywood because it is easy to install and has an impressive level of water resistance. Also, plywood will help you save money in the long run because you won't have to do repair time and again.
The rule of thumb is any vinyl over 4mm can have a vinyl specific underlayment. With thinner vinyl flooring construction, adding a foam underlayment can effect the locking system strength. Vinyl floors under 4mm should be installed right over the subfloor.
Luxury Vinyl Plank can come with attached pad and without. If it has attached underlayment then you should check the flooring manufacturers installation instructions to see if extra underlayment voids the warranty. If you have flooring that does not have attached pad, you will want to install underlayment under it.
When installing over a concrete subfloor, a felt underlayment is the best choice. Felt does a fantastic job of insulating the flooring from the cold concrete. It will also provide shock absorption. This will help absorb the impacts of everyday foot traffic, making the flooring more comfortable.
If installing your luxury vinyl plank flooring over an existing vinyl floor or tile then you won't need an underlayment. This is because other vinyl may be backed by a cushion and tile can build the necessary level to prevent needing another layer.
Underlayment is needed if you're going to install vinyl plank flooring over tile, vinyl flooring, and even hardwood. As mentioned, with the plywood floor, there's no need to worry about a moisture barrier; the underlayment should provide cushioning and sound-deadening benefits.
Luxury vinyl plank manufacturers mention only vapor barrier in their installations. They recommend this due to not allowing (concrete subfloor) getting moisture or alkalinity to your flooring choice. This will eliminate any potential for claims or damages to the manufacturers flooring.
Types of Plywood Underlayment
Today, a much better option is a plywood specifically designed as underlayment and made with sustainably forested wood. You can also use AC exterior-grade plywood, which has one smooth face and one rougher face. Always install underlayment with the smoother face up.
Yes, vinyl plank flooring can be installed directly on concrete as long as the surface is clean and level. It is important to note that some manufacturers may require the use of a moisture barrier or adhesive during installation on concrete.
Yes, provided it meets the specifications required for subfloor preparation. Bear in mind that plywood and OSB substrates tend to get 'roughed up' during construction, and any imperfections in the surface will eventually telegraph through to the surface of the floor.
When you install your vinyl on a wood subfloor, the top plywood should be a minimum of 1/4″ thick. For most subfloors, you will need to add an extra layer of wood. To do this, measure and cut the plywood to fit your room.
Prep your subfloor so that it's clean, dry and level within 3/16-inch change per 10 feet. Use a self-leveler on low spots and/or sand high spots of wood or concrete. Don't sand vinyl flooring as it may contain asbestos.
Foam backing underlayment is a popular choice for luxury vinyl tile, offering a combination of cushioning, sound absorption, and insulation. Foam backing can be made from closed-cell polyethylene, polypropylene, or extruded polystyrene foam.
Cover the floor area with either a 4mm or 6mm plywood - the thickness selected should be determined by the quality of the surface being covered. Ply should be of suitable quality, eg SP101. Wood should be fixed using screws, twisted shank or ring shank nails, serrated or divergent staples.
When properly used, expansion gaps can relieve the pressure from heat expansion that can affect a floating floor and prevent any noticeable buckling or peaked appearance. If the floor is less than 50 ft in length or width, leave at least a ¼-inch expansion gap around the entire perimeter.
Water vapor can penetrate through the concrete subfloor and damage the main floor of builds, causing deterioration of flooring adhesive; bumps, ridges, or bubbles under flooring, color changes due to fading, mold, mildew, bacteria growth; peaking, curling, or warping of flooring; or efflorescence, also known as the ...
Your vinyl planks will be placed parallel to the focal wall or the longest wall in the room. Measure out the length and width of the room, and divide the width of the room by the width of the planks. Plan for ¼” gap along the walls to allow for expansion.
Yes, mold can grow under vinyl flooring if moisture becomes trapped underneath the flooring material. Vinyl flooring is not a breathable material, which means that moisture cannot escape through the flooring.
In short, yes. It's a misnomer that Luxury Vinyl Planks do not need a moisture barrier. If you are putting this type of flooring over your concrete and the contractor does NOT do a moisture, calcium chloride or RH test on your concrete, then they must put a moisture barrier down.
Without underlayment to add a layer between these damp subfloors and the surface flooring, your laminate can quickly become wet, warped, and mildewy, harming its overall integrity. Moisture over time can also break down floor adhesive which causes the floor to start warping.
The 20-22 mil thickness can actually withstand commercial environments. Choose flooring with a middle or higher wear layer if it will be in a high-traffic area of your home. A thinner thickness will be fine if the room in issue is unlikely to have substantial foot traffic. 12 mil works just fine in residential homes.
You can install vinyl on many types of subfloor, including concrete and wood. But that floor must be flat for your installation to be a success. An uneven subfloor can lead to potential problems, such as planks having varying heights that will make the flooring unstable and wear down more quickly.
It is not required, but we recommend using the Visqueen Vapor Barrier with all vinyl plank flooring installations.