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What do you put between subfloor and hardwood?

When installing hardwood flooring, the most important step is to create a solid and level base. This is done by first laying down a layer of plywood, also known as the subfloor. The subfloor provides a foundation that the wood will permanently attach to and provides the necessary insulation and standard surface for the flooring.

The plywood should be adhered to the underlying joists and leveled so there are no large gaps between the surface of the subfloor and the bottom of the hardwood flooring. Once the subfloor has been installed, the next step is to use a layer of underlayment, typically a combination of foam and felt, to create an even smoother foundation for the hardwood to attach to.

The underlayment should be installed directly onto the subfloor and should be free of any fasteners that could potentially cause unevenness and improper leveling. The hardwood flooring should then be laid over the subfloor and underlayment, with each plank or section being securely fastened to the subfloor beneath.

What is the underlay for wood flooring on concrete?

When installing wood flooring on concrete, the underlay is a critical component. An underlay acts as a buffer between the concrete substrate and the wood flooring, serving multiple functions. Firstly, it creates an even, smooth surface to lay the wood on, thus protecting against cracks and gaps that can occur with direct contact to a rougher concrete surface.

It also helps absorb sound, providing a more pleasant experience in the area of installation, as well as acting insulation that helps control the temperature of the floor.

The type of underlay used will vary depending on the type of wood and the conditions of the concrete. A foam underlay, for example, can offer good sound and temperature insulation and a flat, even surface for the wood, but there are other types of membrane or rubber underlay that can provide better moisture protection.

Whichever kind of underlay you choose, it is extremely important to ensure it is correctly fitted and meets the relevant safety standards. The most important factor is that the underlay is fixed to the concrete correctly and offers a strong and secure bonding.

Additionally, it is important for the underlay to be non-combustible and vapour proof, to meet certain Building Regulation requirements.

It is always best to consult a professional to determine the right type and installation of your wooden flooring underlay.

How thick should underlayment be for wood flooring?

As a general rule of thumb, the underlayment for wood flooring should be between 3.2 and 6mm thick. The thickness should be determined based on the type of flooring you’re installing. For instance, if you’re installing a floating or engineered wood floor, you’ll usually want to use underlayment that is 3.

2-4mm thick. If you’re installing a solid wood floor, you may want to use an underlayment that is closer to 6mm thick.

You should also consider the type of subfloor you have installed before choosing the appropriate underlayment. If you have a concrete subfloor, you’ll need to use a thicker underlayment to ensure the wood absorbs the impact and to reduce noise between the subfloor and flooring.

Additionally, if you use thinner underlayment, more of the subfloor will be felt in your finished floor. Many people opt for thicker underlayment when installing any type of floor to increase sound absorption and reduce impact noise.

It’s important to remember that the type and thickness of an underlayment should always be selected based on the specific flooring needs of your project. It’s also a good idea to talk to the manufacturer of the flooring product you’re using to ensure you get the best underlayment for your particular project.

What is to put under hardwood floor?

When installing hardwood flooring, there are several important items to put under the floor to ensure its installation is done correctly and that it is properly maintained over time.

Firstly, it is important to install a moisture barrier. This should be placed between the subfloor and the hardwood floor to protect against moisture damage. The vapor barrier should be made of polyethylene and should overlap the seams by at least six inches.

Next, it is important to install a foam underlayment. This should be placed between the subfloor and the hardwood floor to provide cushioning and soundproofing. The foam should also be overlapping the seams by at least six inches.

On top of the foam underlayment, it is important to install a moisture barrier of thin plywood. This should be placed between the foam underlayment and the hardwood floor for added soundproofing. This should also be overlapping the seams by at least six inches.

Finally, it is important to install a transition strip. This should be placed at doorways, changes in flooring material, lengthways, or any other place where the hardwood floor ends. They help to provide a smooth transition between the hardwood floor and other materials.

In conclusion, it is important to properly lay moisture barriers, foam underlayment, plywood moisture barriers, and transition strips while installing a hardwood floor. This will ensure proper installation and long lasting durability.

How do you choose underlayment thickness?

When choosing underlayment thickness, there are a few factors to consider. First and foremost, the thickness of the underlayment should match the thickness of the flooring you are installing. If you are installing a thinner floor, such as vinyl flooring or laminate flooring, you will probably only need a thin underlayment, whereas carpet may require a thicker underlayment.

Additionally, the flooring manufacturer’s recommendation should provide guidance on what type of underlayment to get.

The type of subfloor you are using should also be taken into consideration. For instance, if you are installing on a concrete subfloor, you may need a thicker underlayment to protect against moisture, dampness, or dampness-causing condensation.

You may also need a thicker underlayment when installing on a plywood or OSB subfloor, to provide adequate cushioning between the subfloor and the flooring. Lastly, some types of underlayment can increase soundproofing or reduce noise, so if soundproofing is important to you, bear this factor in mind when choosing an underlayment thickness.

Does thickness of underlayment matter?

Yes, the thickness of underlayment does matter as it helps to provide cushioning as well as sound insulation. Underlayment is essential in any flooring installation and can help your flooring look better for longer.

When selecting the right underlayment for your needs, the thickness is an important factor to consider. Thicker underlayment provides better cushioning and noise reduction, while thinner underlayment can be used if you don’t need as much insulation.

For instance, if you’re installing a vinyl floor in an area where noise won’t be an issue, then a thinner underlayment can be used. However, if you’re installing hardwood flooring or tile flooring, a thicker underlayment will provide better sound absorption and comfort.

Since underlayment cushions the floor, it helps to reduce footfall noise and provides more comfort when walking. Therefore, the thicker the underlayment you choose, the quieter and softer your flooring will be when you walk on it.

Additionally, if you have underfloor heating, a thicker underlayment can provide extra insulation to help keep your home warm.

Ultimately, the thickness of your underlayment is an important factor to consider when selecting the right product for your needs. It’s best to consult with a flooring specialist to determine which thickness is best for your particular installation.

Should you put underlayment under hardwood floors?

Yes, it is generally recommended to put an underlayment beneath hardwood floors. Underlayment is a thin layer of material, typically made from foam, rubber, or cork, that provides cushioning and insulation between the subfloor and the hardwood.

It assists in creating a level, more even surface for the planks to be installed on, and can help to reduce sound, absorb moisture, and provide more comfortable walking underfoot. Underlayment generally also acts as a vapor barrier, protecting the hardwood planks from potential moisture damage.

Additionally, most hardwood manufacturers require that an underlayment be installed beneath their flooring materials in order to remain protected under warranty. For all these reasons, it is generally recommended that an appropriate underlayment be installed beneath hardwood flooring.

Do I need underlayment for hardwood flooring on plywood?

Yes, underlayment is typically recommended for hardwood flooring installed on plywood. Underlayment provides cushion and a moisture barrier between the plywood subfloor and flooring, helping to reduce noise and providing extra insulation.

Additionally, underlayment may help to even out any minor imperfections in the plywood subfloor which can cause the hardwood flooring to be unstable. Generally, a foam-based underlayment is recommended, as it can conform to irregular subfloor surfaces and can provide more sound and thermal insulation benefits.

However, some manufacturers may also recommend using a felt-based or other type of underlayment, so it is important to check the guidelines from the manufacturer before purchasing any underlayment.

Does hardwood go directly on subfloor?

No, hardwood should not be installed directly on the subfloor. Subfloors—usually plywood or cement board over a wooden, steel, or concrete frame—were designed to be strong and durable. However, they do not provide a smooth or stable surface for hardwood installation.

Before hardwood can be installed, a layer of underlayment—typically 6mm exterior-grade plywood, 3/8” tongue and groove OSB (oriented strand board), or 1/4” luan—must be applied as a base over the subfloor.

Underlayment provides a stable, uniform layer that distributes the weight of the floor more evenly, making the hardwood installation more secure and less prone to cracking and warping.

Do you need anything under hardwood flooring?

Yes, if you are installing hardwood flooring, there are a few items that you should make sure you have on hand. First, you’ll need a good quality hardwood flooring saw to cut the wood to the right size.

Additionally, you’ll need a hammer and nails to install the planks securely. Along with that, you’ll need protective wear such as safety glasses and a dust mask, as well as a few other products such as trowels, saw blades, and foam tiles.

You’ll also need to determine whether underlayment is necessary; if so, this will add to your shopping list as well. Finally, make sure you have a measuring tape and a writing utensil to help you measure your floor before you start buying materials.

What should I put down before installing hardwood?

Before installing hardwood, it is important to ensure that the subfloor is completely flat and free of obstructions. This includes checking for nails, screws, and other foreign objects, as well as making sure that the surface is level and free of bumps or dips.

Additionally, any gaps or cracks in the subfloor should be filled with self-leveling compound to ensure a smooth, uniform surface.

It is also important to ensure that the room is climate controlled before beginning installation. Moisture from humidity can cause the wood to condense or swell, while cold temperatures can cause the glue to stick at a slow rate or not adhere at all.

If necessary, use a dehumidifier or air conditioner to regulate the interior climate.

Finally, be sure to lay out the pieces of the hardwood floor before installation to determine the pattern, allowing for expansion. This is a crucial step in the process, as it will help to ensure an even and aesthetically pleasing installation.

Does it matter which direction you lay hardwood flooring?

Yes, it does matter which direction you lay hardwood flooring. Depending on the shape of your room and features of the wood, laying the boards in a particular direction can have a big impact on the overall look and feel of a room.

Generally, it’s best to lay hardwood flooring in the same direction as the longest wall in your room, as this creates a sense of length and width while creating a more balanced feel. It can also make a room look larger, as long planks tend to create an illusion of greater length compared to smaller boards.

Additionally, laying the flooring in the same direction as the natural light entering your room can help to focus and bring out certain tones and unique features in the wood, creating a beautiful effect.

Ultimately, it is important to consider each factor before deciding which direction to lay your hardwood flooring in order to maximize the aesthetic potential of your space.

Do I need a vapor barrier under my flooring?

Whether you need a vapor barrier under your flooring depends on several factors. First, the type of flooring you use will determine if you need a vapor barrier. Vinyl flooring, especially if it is waterproof, will not require a vapor barrier, but laminate and hardwood may.

It also depends on the type of subfloor you are installing on. Plywood or OSB boards should be treated with a moisture-proof sealant to create a barrier if there is no existing vapor barrier. Lastly, you should consider the moisture levels in your home.

A vapor barrier is recommended if your home has high levels of humidity or you live in a climate that experiences extreme temperatures. In general, a vapor barrier is recommended in order to prevent moisture from damaging your flooring.

Do all floors need underlayment?

Whether or not you need to use underlayment for a given flooring material depends on the type of flooring you are installing and the type of subfloor you are laying it on. For certain types of flooring, such as laminate and engineered hardwood, underlayment is necessary to help ensure a smooth, even installation.

Underlayment provides a thin layer of padding between the subfloor and the flooring material, helping to reduce any noise and create a more comfortable surface to walk on.

Carpet, on the other hand, requires an underlayment of some kind in order to ensure that it is properly cushioned and to reduce noise. Specialty underlayment can also be used for other hardwood flooring types or tile to allow for better thermal insulation or sound reduction.

Overall, it is important to consider the type of flooring you are installing and the type of subfloor to determine whether or not you need to use an underlayment. If you are unsure, it is always best to consult a professional for advice and guidance to ensure that you get the best possible results from your flooring installation.

Where should a vapor barrier be placed on the floor?

A vapor barrier should be placed underneath the floor covering and as close as possible to the subfloor/concrete without touching it. This is because the vapor barrier will act as a shield to prevent moisture from the concrete or subfloor from entering the living space.

When selecting a vapor barrier, make sure to choose one that is designed to be moisture and mold resistant and can withstand any movement or shifting in the floor. The vapor barrier should be installed in full coverage over the entire subfloor, with all seams being taped and sealed to ensure the best defense against moisture and mold.

If the vapor barrier is being used in conjunction with a radiant heat system, make sure to use a higher quality vapor barrier designed specifically for this purpose.

Do hardwood floors need to breathe?

Yes, hardwood floors do need to breathe. This means that a gap or expansion joint between the floor and walls or cabinets should be left un-filled during installation. This allows the wood to expand and contract with changes in humidity and temperature.

It’s also important to note that a cleat system should be used so that individual planks can move independently, rather than using a full adhesive application in order to allow the wood the flexibility it needs.

If a gap or expansion joint becomes filled with dust or debris, it should be cleared out to allow the wood to breathe. Overall, it’s important to allow your hardwood flooring to move freely in order to avoid issues from being compressed, such as cracking, buckling, and separation.

How do I stop moisture coming through the floor?

If the moisture appears to be coming through the walls, it would be best to check the state of your insulation and waterproofing. It may be necessary to re-caulk, seal any cracks and gaps, or use a waterproof membrane to stop the moisture.

If the moisture is coming from the ground, you may need to use a water-resistant coating on your floor. You should check for any cracks or weaknesses in the existing floor and fill them in with a waterproof sealant.

Additionally, you may need to add a vapor barrier beneath the flooring material to help stop the moisture from seeping through.

Finally, you should take steps to prevent moisture problems from recurring. For example, you could consider installing a dehumidifier to keep the air humidity at an acceptable level, or use a waterproof sealant regularly to protect your floor from water damage.

It is always best to hire a professional to assess the situation and guide you through the best course of action.

What is the material that goes under flooring?

The material that goes under flooring is known as a subfloor. This material is typically made of either plywood, OSB (oriented strand board), or concrete, and serves as the base layer that other flooring materials, such as tile, carpet, hardwood, or laminate, are installed on.

Subfloors must be properly insulated, and often use underlayment or other vapor barriers to protect against moisture, mildew, and rot. Additionally, some subfloors are designed with thermal properties to improve energy efficiency and save money.

Effective installation of a subfloor is essential for a successful flooring project, as it creates a solid foundation for flooring materials to be placed on top of.