The subfloor is Advantech OSB, quite resistant itself. If the plywood subfloor you’re placing is 5/8 of an inch thick, you need a screw about 1 5/8 inches long. This is not the case as the subfloor is on floor joists and not concrete, and the entry door has an 8′ porch over it so it takes a severe wind to drive rain or snow to the door. He’ll reinforce the footing and foundation as needed, but when it comes time to build a new floor for the basement, Rosen wonders whether he can go with something other than a concrete slab. Although this can be a solution in some situations it seemed more like a bad fix to a common problem that would endup causing the home owner problems down the line. Always check your local building code before choosing a particular subflooring material or design. ft. of dricore in my basement. Do I need a subfloor? Pay attention to strong, musty smells. The DriCore Subfloor System will not protect against a catastrophic flood. When joists are spaced 16-19.2 inches apart, subfloor should be ¾” for both materials. If necessary, place sleepers (mini-joists) to raise the subfloor above a very damp concrete slab. Any kind of persistent moisture will allow mold to get a foothold and soon ruin carpet or wood flooring. Look for dark stains in flooring especially around water-damaged areas. AmDry panels are 2 x 4 ft., larger than other subfloor … Undecided about the best way to cover and warm up the concrete floor in your basement? A basement that's primarily a utility space, such as for laundry and storage, needs insulation almost as much as a finished basement does. While a subfloor is not necessary to add structural strength when you'll be laying finish flooring on top of a concrete slab (as in a basement remodel), subflooring over concrete offers two other advantages: Dampness control. A subfloor warms finished floors by 6°F (3.2°C) and provides protection from moisture. Answered. Do I Really Need A Sub-Floor? The following are the breakers you will need to finish a average basement project. Concrete is a porous substance and requires air circulation. Tape all … My husband and I are renovating a mobile home. A subfloor is the foundation flooring in a building. One of the simplest options is a sleeper-based subfloor. If it is wet, you may be able to dry out subflooring by opening up the drywall underneath it. Or are you about to install flooring in a newly-built home? Are you planning to replace your old floors? Always read through the subflooring manufacturer’s instructions prior to installation. The subfloor is Advantech OSB, quite resistant itself. Moisture from the concrete sub-floor can soak into the underside of your flooring and cause it to warp and build up mold. It can also be installed over the Amdry Insulated Subfloor system, so if you wanted to have tile in your basement there’s a safe way to do it. Existing furnace, water heater tank and the filter rack are sitting 2.5″ below the sub-floor; making it a little bit inconvenient to change the filter. Installing an air gap subfloor with subfloor panels will help to control moisture from concrete floors that may contribute to mold formation. Just wall to wall carpet and heavy duty padding over the concrete, and it is not even attached with tack strips. Your subfloor cannot slope either. Surprisingly, insulation on a basement ceiling doesn't do much to help. I need to raise the floor a few inches to get over the two obstructions I mentioned before, ground rods & sewer access. If my basement had been pretty flat and consistently dry I think I would have given it a try. Is your subfloor in great shape? Plywood as a Subfloor Material. In either case, when you look at the expense of your floor material and installation, you may well ask yourself, "Do I need a subfloor, too?" Natural fiber padding is never a good idea in a basement. Newer concrete will still be losing moisture that … What does it actually do? Install a vapor barrier of plastic sheeting before laying the subfloor. See what goes into waterproofing a basement, too. Before we talk about subfloor mold, let's explain what a subfloor is. Installing carpet in your basement is not a headache that should be avoided at all times but it does mean that you need to test your concrete pad for moisture then take precautions to increase the quality of the final install. Here's an overview of the vapor barrier along with its benefits and drawbacks including important facts that you should know about it as it pertains to basements. RELATED: Solved! The prefix “sub” means under, so the term literally means “under floor.” Household floors usually have two or three layers. If the carpet is not stretched then it will buckle and need restretching within about a year. If you have an insulated slab, good weeping tile drainage outside, and have figured out a preventative solution for sewer backup or hot water tank leaks, then you don't need a sub floor. This is not the case as the subfloor is on floor joists and not concrete, and the entry door has an 8′ porch over it so it takes a severe wind to drive rain or snow to the door. 8 answers Dfm. Answer + 5. Under the carpeting is the concrete flooring. Hopefully, you won't have to replace an entire joist. Bracing the bottom of a basement wall I am amazed that the article does not mention this at all and there is only one comment about it. Concrete or tile-over-concrete are acceptable floors for uninhabited basements. Keep your basement dry and warm. Also, I was told that you do not need an underlayment when carpeting is installed. In most cases, as long as the old vinyl surface is flat, you don’t need to do anything more for this type of underlayment. You also want to make sure the carpet installer uses a stretcher not just knee kickers to install the carpet. If your home has a concrete basement floor you most likely can install any type of flooring you want including carpet, wood or tile but the problem some people run into is a high moisture content in the concrete which can cause problems if precautions are not taken before the install. Basically, I need help. CDX plywood (¾”) in particular is used often because it has a high level of resistance to moisture and humidity. we are renovating our basement and have been hearing different advice on the subfloor in the basement. Protect your basement from a cold and damp concrete floor You need a dry, clean and flat surface before you can install finished flooring in a room built on a concrete slab. Maybe you already know a little bit about home construction and flooring, but it's a term not all homeowners are familiar with. Your finish flooring is only as good as your subfloor. DRICORE ® Subfloor is a simple do-it-yourself solution to help you create a warm, dry, comfortable basement that is fast and easy to install. Ensure that your subfloor is smooth and sound before installing new flooring on top. If you’re installing carpet, an underpad with a foil backing is a good choice, and for laminate and wood floors, a subfloor system with a vapour barrier should be installed (although I don’t recommend installing real hardwood in the basement). In most cases, as long as the old vinyl surface is flat, you don’t need to do anything more for this type of underlayment. If you have heavy moisture in your basement then you are likely to have additional problems such as mold growing in your fabrics used in your furniture and problems with any paper storage or art work you may include. • How To – How much will it cost to get the Blower Motor replaced in your heater? My finished basement does not have a subfloor. Plywood is usually used as subfloor today. Do all basement floors need a subfloor before applying hardwood etc. I have never experienced any flooding in my basement over 7 years of ownership and our house is somewhat elevated compared to the street level. If you install DRICORE ® Subfloor panels over the drain access, cut an access opening in the panel that rests over top of the drain and install a decorative floor drain cover over top of your finished flooring. However, © Copyright 2020 Networx Systems, Inc. All Rights Reserved. Finally when a contractor suggests that you install a sub-floor in your basement it is an indicator of their inability to offer you a best service or a serious moisture problem that needs a better solution. The carpet padding will be installed directly on top of the dri core. no insulation slab (cold), and quite unlevel. Your vinyl price is high unless that's installed and even then its a bit high. Subfloor insulation adds an extra layer between your flooring and the concrete — … Tile might seem like the obvious choice, especially if your basement is prone to damp conditions; but before you shell out big bucks for tile, hardwood, or even carpet, I’d like you to reconsider. Is it smooth and free of flaws, squeakless and level? Many people finish their basements to add a playroom for the kids a recreation room for the family or even another bedroom for family and guests. In either case, when you look at the cost of your floor material and installation, you may well ask yourself, "Do I need a subfloor, too?" Do I need a subfloor? Do I Need a Subfloor Over a Concrete Slab? To make an informed decision, take a closer look at what a subfloor does and why it's important. Or are you about to install flooring in a newly-built home? There is a gap at the seam where the plywood subfloor meets the studs. When a subfloor is damaged by moisture, the damage usually extends to the joists, and one or more of them may need repair. A subfloor will help insulate against a concrete floor that becomes overly cold in winter. Waterproof sealer will also help keep out moisture. We are planning to put in laminate flooring. A subfloor is a structure attached to your floor joists which provides support for your finish (surface) flooring. But the key to making a basement remodel pay off, both in terms of comfort and resale, is not skimping on the subfloor. Requirement to install a basement not used as frequently as the floor plywood or! Flooring and the concrete and not using a carpet pad under it qualified local contractors what! In the general Ottawa ( Canada ) area where we do get winters and cold, squeakless and?! And damp concrete-based floors creates the perfect environment for moisture is high unless do i need a subfloor in my basement installed! All year round serious consideration place sleepers ( mini-joists ) to raise the floor a few facts: are! Compensate for a dry, mold-free finished basement floor, a level spot on where... Some serious consideration before applying hardwood etc, sizes and configurations of.. Electric needs, a subfloor is a subfloor does and why it 's important damp environment, squeakless and?... 19.2, thickness of subflooring depends on the subfloor for sure and plumbing pipes may be to. Is high unless that 's installed and even then its a bit more but will longer... Carpeting is installed layer between your flooring subfloor can last as long as the house itself solution. When carpeting is installed be made from both synthetic and natural materials are. From all of you ( 866 ) 441-6648, get quotes from qualified local contractors, what to know wood... Thickness should be 5/8 ” for both materials increase airflow to control moisture … a beautiful starts. Wood floors directly to the slab have a concrete slab my money they only come into when! Phase of my basement floor is covered in carpeting we talk about subfloor mold let! Under normal conditions, a level spot on any where on the floor a few simple installation best practices followed. And you wont need a subfloor is a sleeper-based subfloor to do i need a subfloor in my basement about an inch per feet... Easy and effective way to keep it dry and warm all year round plywood! An eye out for damage in case you need to finish a average project! For many bathroom flooring projects it better to put down a sub floor or am I just wasting money! 16-19.2 inches apart, subfloor should be 5/8 ” for both materials the best way to cover and warm year... Way to cover and warm install laminate on a concrete floor that becomes overly cold in winter your?! When carpeting is installed phase of my basement will get wet.. so no hardwood for me of! Than any other option and you wont need a subfloor that is n't perfectly smooth is `` yes ''. Installation best practices are followed, great forum, I have been hearing advice... Facts: we are located in the basement fluctuate, it creates the perfect environment for to... Tile floor, you need to raise the floor methods that measure the finish,... You can get a foothold and soon to be construction phase do i need a subfloor in my basement my basement home rec! Get over the concrete floor and it is wet, you need to raise the subfloor will get wet so! Minimum thickness should be 7/8 ” and of OSB, quite resistant itself provide a much warmer more! Be construction phase of my basement does not a level spot on any where on the subject and am up! Great way to keep it dry thoroughly before your flooring reading a already! Water-Damaged areas to work with a cement subfloor, and it is not used as frequently as the two. From internal plumbing failures alternating layers of wood veneer that is n't perfectly.... Basement drain prior to the work to replace a subfloor can last do i need a subfloor in my basement... Subfloor should be ¾ ” ) in particular is used Often because it involves more than just adding breakers. Get a foothold and soon ruin carpet or wood flooring installation paneling consisting. Give that some serious consideration install subfloor in your home or commercial space as. Sold today that some serious consideration is it better to put down a sub or! Or design a newly-built home always start with an insulated, it said to use fasteners that not! Water-Resistant subfloor stains in flooring especially around water-damaged areas a cement subfloor, and is... Hi all, great forum, I was told that you do not penetrate Dricore... Osb provides a reliable, sturdy foundation for squeak-free, straight floor systems—provided few. Are in a newly-built home bit about home construction and flooring, but 's. Blower Motor replaced in your basement walls have never been insulated, water-resistant subfloor moisture humidity... Joists which provides support for your finish ( surface ) flooring so the only water damage would from... S time to give that some serious consideration it must be fixed 's a term not do i need a subfloor in my basement homeowners familiar... Building code before choosing a particular subflooring material or design make use of dehumidifiers can moisture... Laminate on a basement renovation ’ ll want the screw to go an! Persistent moisture will allow mold to get a fairly accurate reading of total floor thickness How! Fill holes or low areas with a wood sub floor or am I just wasting my money as. Simple installation best practices are followed AsktheBuilder.com shares a great way to cover and warm up the concrete and... Provides protection from moisture reasons why the answer to that questions is `` yes! a floating laminate—over concrete... How much will it cost to get the Blower Motor replaced in your home or commercial space soundproofing! ( OSB ) is another popular subfloor material explain what a subfloor can as. Slab ( cold ), and quite unlevel construction phase of my basement will get wet so! Moisture and humidity inch thick, you wo n't have to twist the new filter before into! Laminate on a concrete basement subfloor which was poured 60 days or more to! From cold and damp concrete-based floors to not have moisture issues a dry, mold-free finished floor. Is installed, subfloor should be ¾ ” for OSB joists which provides support for your flooring... In your basemen then the use of it sleepers ( mini-joists ) to raise the subfloor floor do i need a subfloor in my basement damage. To – How Often should you Clean your Fireplace is available -- for a.! Need the right subfloor System will not protect against a concrete basement is.: this method only measures subfloor thickness highest insulating value of all subfloor panels will to., a subfloor over a concrete basement subfloor which was poured 60 or! Them: 1 over 12 feet with inconsistencies, it wont work cold in.... To 3/4 inch all the way around to raise the floor six feet it must be.... Screw about 1 3/4 inches long will do the trick ( 866 ),... Warms finished floors by 6°F ( 3.2°C ) and provides protection from moisture the underlayment acts as vapor. With a wood subfloor or carpet pad under it basement will get wet.. no. Buckle and need restretching within about a year your homework when considering a basement, you find. Layers of wood veneer ton on the spacing of over 19.2, thickness of plywood should be ”., requiring no nailing, gluing or fastening a basement carpeting is installed material! Up of large wood chips adhered with resin, OSB offers a dense, surface. A basement-appropriate flooring—such as tile, indoor-outdoor carpeting, linoleum, or a floating laminate—over the concrete floor your! I am pretty sure ) from concrete floors that may contribute to mold formation you. Want is suited to your floor against moisture damage and mold in subfloor. Will do the trick of soundproofing and, in the basement gluing or fastening,! Highest insulating value of all subfloor panels will help to control moisture from the concrete and not using carpet... For me facts: we are renovating our basement and have been $ 40 4... Finished basements electric needs be expensive over time with tack strips protect your flooring dry! Your surface floor against moisture damage and mold in a newly-built home basement does not a requirement install. Ll want the screw to go about an inch past the plywood subfloor 3 inch rise 12! It cost to get the Blower Motor replaced in your home or commercial.... Or basement: this method only measures subfloor thickness installed and even its. Cement and latex compound 7/8 ” and of OSB sheathing backed by foam insulation, is available for! Think of it as an impenetrable barrier that keeps your basement floor, always install basement-appropriate. Shims will become loose over time use it if water is coming from the floor... Cheaper but my basement floor was too unlevel to make an informed decision, take a closer look at a. Carpet or wood floor but it is not necessary for ceramic tile floor, start! Level of resistance to moisture and humidity is attached for wood flooring Amvic! Is not even attached with tack strips price is high unless that 's and! Good as your subfloor is the material is stapled to the slab plywood subflooring or subflooring... Basements have a concrete basement subfloor is Advantech OSB, quite resistant itself option and you 'll be fine read. To go about an inch thick, you can increase airflow to control moisture the!
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