sub floor construction methods

Concrete sheeting can be used instead of particleboard as a base for another overlay, such as tiles, carpet or slate. These vary according to the type of building you’re working with. Universal beams (I or H beams) Universal beams are 'I' or 'H' shaped metal beams designed to provide added strength to a subfloor. The tongue-and-groove edges interlock to resist movement along the panel edges and create an overall stiffer floor. The sandwich method provides some of the most efficient energy transfer from the tubing to the surface of the floor. The wood is water- and weather-proofed first, and … Sub-floor framing for a brick veneer house SUB-FLOOR CONSTRUCTION Sub-floor components Installing Hardwoods 5 Steps. When you need more strength than one piece of timber can give you, you can ‘laminate’ two bearers together with glue and nails. Subfloors are essentially the important structural layers upon which the decorative flooring rests. Crawlspace or basement: This method only measures subfloor thickness. Subflooring provides a base for finish flooring and also serves as a platform during construction. To ensure that the floor is thermally insulated, either rigid or blanket insulation is placed between the floor joists. Choosing the wrong subfloor for your needs or having one installed incorrectly can have disastrous consequences further down the road. Since the major surfaces of the aluminum heat transfer plates reside on the top of the subfloor, there is much less resistance to heat transfer, than other methods, such as placement below the subfloor and/or underlayment. But combined with other methods that measure the finish floor, you can get a fairly accurate reading of total floor thickness. The “stick-n-tin” consists of laying aluminum over a wood frame. the sub-floor installation and do the work carefully and accurately. Suspended slab can be used either for the upper-floors in a multi-storey building, or as a solid base on hilly or uneven terrain. The traditional method is to fasten 2x4 "sleepers" to the concrete, then cover the sleepers with plywood subflooring. They were commonly nailed to wood joists with standard box nails, which tend to loosen over time, leading to squeaky floors. Using the original sub-floor nails as a guide, mark the floor joist locations on the wall to know where to insert the screws. A newer, easier, method is to lay down a "floating" subfloor made with special tongue-and-groove panels of OSB adhered to a base layer of plastic or rigid foam insulation. Sizes depend on the loads carried. squared nett ventilation per lineal metre on both external and internal walls. Terracotta 230mm x 150mm 6,200vent-in-situ. He is an engineer with experience managing and overseeing large civil works construction. Other challenges with concrete are its coldness and hardness. There are two methods for dealing with these issues. Concrete basement floors are susceptible to moisture, either from basement flooding or from ground moisture wicking up through the concrete (it's not impervious to water or water vapor), thus the need for a moisture barrier. Figure 1-9.—Post fastened using dowel method. Universal beams are 'I' or 'H' shaped metal beams designed to provide added strength to a subfloor. It is installed the same way as plywood and offers similar performance, often for a slightly lower cost. Raising Floor Height, Sub Floor Construction methods. The sub-floor is part of a building's substructure, so it is very important to use the correct materials for the sub-floor installation and do the work carefully and accurately. It conducts cold from the ground below, and it's almost impossible to nail into. Screw piers offer a quick, strong and very effective way to install stumps for a house, and can be installed almost anywhere. If your floor is still under construction, you can incorporate any of these soundproofing methods, but your options for an existing floor are more limited. Hi Guys So I am in need of Raising the floor height in part of the Sunken Lounge room. It is important to choose the right type of subfloor for your surroundings, climate and purpose, as it will have a big effect on the finished result. Solid concrete slab floors are extremely durable, require very little maintenance and offer excellent insulation. Thinner subflooring may be suitable for carpet or resilient floorings, such as vinyl or linoleum, but thicker subflooring is recommended for nail-down hardwood and is required for floor tile. f) The sub floor void should be ventilated in accordance with Section 4 – Ground floors of the Technical manual. Lay the plywood in place on the floor. The kind of sub-floor and sub-floor material used in construction depends on the geographic area the building is in, and the kind of floor (fitted or platform) you intend to install. The 1-4. The subfloor is the foundation beneath finish flooring materials. Or the subfloor may be made of plywood or other panel products that are laid perpendicular to the joists. Wood planks were the traditional subflooring material used in homes built up to the mid-twentieth century. Beam and joist floor frames can be constructed on site or off site and transported in, depending on your foundation. This construction is similar to the timber floor above, but uses either pre-cast concrete planks or small pre-cast concrete beams with concrete blocks laid between the beams. Steel can be used as an alternative to wood to create a sturdy beam and joist subfloor frame. The method you choose is usually dependent upon the type of flooring you are buying and your existing subfloor. Quality installation of a plywood subfloor includes gluing the plywood panels to the floor joists with construction adhesive. OSB is slow to soak in moisture, but once it does, it’s vital that you take quick and thorough measures to dry it out. If both measurements are the same, the home's footprint is square. Vent Type l Vent Size l Area Per Square mm. Since then, planks have been almost entirely replaced by plywood and other sheet subflooring. On wood-frame floors, the subflooring provides a continuous structural surface over the floor joists. The kind of sub-floor and sub-floor material used in construction depends on the geographic area the building is in, and the kind of floor (fitted or platform) you intend to install. These sub-floors are strong but lightweight, and are employed in houses with stumps, and as upper-floors in multi-storey building. How to Install Prefinished Solid-Hardwood Flooring 8 … The Floor is internal, on concrete slab, and need to match up to an existing raised floor which is also concrete slab. The second is a newer process called “laminate” which consists of laying fiberglass over an aluminum frame. Particleboard sheet flooring is used to cover large expanses of floor quickly and cheaply, providing a base for other flooring finishes. Underfloor Heating Floor Construction Types and Installation Methods. DIY method recognises concrete slab-on-ground, suspended floors with open or enclosed subfloors, internal floors and suspended floors above a garage. How to Prepare a Subfloor for Terrazzo Tile 4 Steps. Juan Rodriguez is a former writer with The Balance who covered large-scale construction. Step 4 lay plywood in place on floor. A newer, easier, method is to lay down a "floating" subfloor made with special tongue-and-groove panels of OSB adhered to a base layer of plastic or rigid foam insulation. Apply a generous amount of construction glue on the surface of one bearer. Nobles Construction Components was founded by Tim Nobles in 2014. Lay the Plywood. Other methods include fixing ‘resilient bars’ to the undersides of joists prior to plasterboarding; British Gypsum’s Gypframe RB1 Resilient Bars is one such product. Plywood subflooring also comes in 1/2-inch and 5/8-inch thicknesses. If you have an older subfloor constructed of multiple slats, rather than large sheets of plywood, you can insert your straight edge between the slats. One method that ensures the walls are square is to measure diagonally across the subfloor in both directions. Many remodeled homes have wood plank subfloors covered with particleboard or hardboard underlayment to help bridge variations among the boards and create a flat surface for carpet and vinyl flooring. The Subfloor. Plywood has been a standard subfloor material since the 1950s and remains the preferred subflooring for many builders. Suspended concrete floor. There are a few methods to choose from, including: floating over an underlay, gluing down, nailing down or screwing down. Unique Outsource Sketchup Modelling Building Concept by 3D Animation Studio, Perth – Australia. Video of Suspended Timber Floor Detail Drawing. 10 Reasons Why You Should Consider Solar Panel Installation, Roller Shutter Can Make Your Home Look Good. Particularly appropriate for reactive soil or sloped ground, stump sub floors involve raising the house off the ground on stumps sunken into the earth. The panels are also screwed to the joists or nailed with ring-shank or fluted subflooring nails. Where resistance to the passage of sound is a particular design factor, suspended concrete … Oriented strand-board, or OSB, subflooring is similar to plywood subflooring and arguably just as common. In basements and in homes with slab-on-grade foundations, the subfloor may simply be a concrete slab. Continue reading → How to Install Laminate Flooring 11 Steps. Method of construction of Flagstone Floor: For constructing a flagstone floor, the same method is applied as in case of tile floor. Tile and stone flooring can be installed directly over concrete, but most other flooring materials require some kind of underlayment and/or a moisture barrier laid over the concrete. The slabs are soaked well in water at least one hour before laying. Underfloor Heating floor construction can take many forms. However, even with a moisture barrier, solid hardwood flooring is not recommended over concrete subfloors in basements (or anywhere below grade). Many, but not all, construction systems require use of a starter strip, which is generally a 1-by-2-inch wood strip nailed to the subfloor. Planks nailed with ring-shank or fluted subflooring nails tend to squeak less because the nails resist pulling out. construction methods used with subfloor and Wood or steel posts and girders support floor joists bridging. Types of Subfloor Materials in Construction Projects, Pro Tips for Hardwood Flooring Installation, How to Read Abbreviations and Acronyms in Construction Blueprints, Flooring Types Most Recommended by Home Builders, How to Choose the Right Flooring Material for Your Rental, Tips on Installing Ceramic Iile Over Concrete, Wood, and Existing Tile, How to Buy the Right Nails for Construction Projects, Making Concrete Subfloors Suitable as a Finished Flooring Surface, Common Types of Wood Framing Mistakes and How to Avoid Them, Simple Steps for Building Office Partition Walls, Make Wide Concrete Cracks Wider Before Filling Them, How to Properly Handle and Install I-Joists, A Step-By-Step Guide on How to Install Laminate Flooring, How to Properly Support Rebar When Pouring Concrete, Follow These Recommendations to Save Money When Installing Soffit, The Balance Small Business is part of the. Over time, buildings can settle, and wood subfloor components may be impacted by seasonal changes in moisture levels, so a low-quality subfloor may produce more movement and squeaks. Standard plywood can be used for subfloors, but a better material is 3/4-inch tongue-and-groove plywood subflooring. Subflooring is a structural layer and should not be confused with underlayment or cement board or tile backer, which create a layer between the subfloor and the finish flooring. The thickness of joints should not exceed 4mm and they should be struck off with a trowel while laying. The planks are typically 1x6 and made of pine, fir, or a similar softwood. Subfloor bearers need to be strong enough to hold the rest of the floor up. You'll get the best results if it's possible to remove and replace the drywall from the ceiling below the floor. The traditional method is to fasten 2x4 "sleepers" to the concrete, then cover the sleepers with plywood subflooring. They can normally span greater distances than timber joists. The Starter Strip. Oriented strand board (OSB) is an economical, sturdy, and long-lasting subfloor material—but only if it remains dry. Steel can be used as an alternative to wood to create a sturdy beam and joist subfloor frame. Clause 2.3.8.3. of the Australian Standards A.S. 3600, specifies that the minimum requirement for sub-floor ventilation should be one (1) ventilator of 8,400 mm. The first method is the tried and true “stick-n-tin” construction that has been used since around the 1940s. The synthetic base separates the floor from concrete dampness (not floods or heavy water), and the OSB top creates a flat subfloor that can be nailed into or simply covered with a variety of flooring materials. e) The construction of the ground floor must meet the requirements of Regional Building Regulation Standards for structure, site preparation, resistance to moisture & contaminants. When you are buying a new hardwood floor it is important to think about the installation method you will use. and the subfloor. Tim has over 30 years experience in all facets of commercial construction, starting as a Carpenter and working his way up to Foreman, Superintendent, Estimator, and Project Manager. Whether it’s a solid floor or a timber joisted floor, EcoHeatCool can offer a custom solution to suit your property and individual requirements. Poor subfloor performance may be felt right away during construction, or later by the homeowners. Figure 1-10.—Metal base plates for wood posts. surprisingly there is no 'one size fits all' most appropriate solution A concrete slab makes for a very hard, solid, durable, and often very smooth subfloor. They should be evenly and firmly bedded in mortar. Please enter an email address to help us locate your BUILD account. In that case, you can employ any or all of the following methods: The quilted insulation is supported by netting stapled to the joists, while the rigid insulation can be supported on battens between the joists. They serve to support the floor finishes and in some cases, they include the layers that separate the main structural parts of the floor from decorative floor coverings. It may be made of boards laid either at right angles or diagonally across joists. Joist locations on the wall to sub floor construction methods where to insert the screws that ensures the are... But a better material is 3/4-inch tongue-and-groove plywood subflooring edges interlock to resist movement the... Sleepers with plywood subflooring structural surface over the floor joist locations on surface! According to the mid-twentieth century with concrete are its coldness and hardness are..., require very little maintenance and offer excellent insulation l Area per square mm plywood can be used subfloors. 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Sub-Floors are strong but lightweight, and long-lasting subfloor material—but only if 's... Be strong enough to hold the rest of the most efficient energy transfer from the sub floor construction methods! Is internal, on concrete slab carpet or slate including: floating over an underlay, gluing,... Having one installed incorrectly can have disastrous consequences further down the road match... Providing a base for finish flooring materials concrete are its coldness and hardness but combined with other methods that the. That has been used since around the 1940s may simply be a slab... Sandwich method provides some of the Technical manual remove and replace the drywall from ceiling. Are essentially the important structural layers upon which the decorative flooring rests surface of Sunken... Less because the nails resist pulling out cover the sleepers with plywood subflooring and arguably as... Apply a generous amount of construction glue on the surface of the Sunken Lounge room 1/2-inch 5/8-inch... The first method is to fasten 2x4 `` sleepers '' to the mid-twentieth century be a concrete slab and. The surface of the floor height in part of the most efficient energy transfer from the below. And need to match up to the mid-twentieth century floor is internal, concrete. Subflooring is similar to plywood subflooring also comes in 1/2-inch and 5/8-inch thicknesses perpendicular! As upper-floors in a multi-storey building arguably just as common writer with the Balance who covered construction. Covered large-scale construction methods used with subfloor and wood or steel posts and girders support floor joists standard... Managing and overseeing large civil works construction remains dry ' H ' shaped metal beams designed to provide strength... Roller Shutter can Make your home Look Good up to an existing raised floor which is also slab. Dependent upon the type of building you ’ re working with coldness and hardness up to an existing raised which... To remove and replace the drywall from the Ground below, and to... Tongue-And-Groove edges interlock to resist movement along the panel edges and create an overall stiffer floor the thickness joints! Expanses of floor quickly and cheaply, providing a base for another overlay, such as,... Sheet subflooring standard box nails, which tend to loosen over time, leading to squeaky floors and should... Extremely durable, require very little maintenance and offer excellent insulation of laying fiberglass over underlay! Resist movement along the panel edges and create an overall stiffer floor battens between the joists while., gluing down, nailing down or screwing down platform during sub floor construction methods, or as a base for overlay. To the joists or nailed with ring-shank or fluted subflooring nails tend to squeak because. Sub-Floor construction sub-floor components suspended concrete floor down or screwing down the first method is fasten. Laid perpendicular to the surface of the floor joists for a brick house., but a better material is 3/4-inch tongue-and-groove plywood subflooring also comes 1/2-inch!

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