In this article, we will concentrate on guidance to improve the sound insulation performance of existing floors, as most of the principles described here are applicable to new builds. As mentioned in the title, two key areas need to be looked at when improving a floor construction: the airborne aspect (tv noise, music, speech etc.) is typically dealt with by applying ceiling treatments and mass to the system and the impact (footfall etc.) performance is increased by the used of resilience and isolation of layers.

Let’s look at how to deal with airborne sound insulation in the first instance and then detail the steps to improve the absorption of impact noise (although, as you will see, there is an overlap between the two topics).

Airborne noise soundproofing In existing dwellings (taking the typicall example of a house converted into two flats, ground and first floor), the separating floor construction typically consists of the following layers, from top to bottom: Existing floorboards Timber joists Plasterboard ceiling directly fixed to the joists As you can probably imagine, this minimal construction is not adequate to separate two dwellings, being an internal partition originally. This system would typically achieve a sound insulation performance of 35dB Dntw + Ctr, way below the 43dB minimum requirement (see sound testing explained for more details). So, what treatments are necessary to achieve adequate airborne performance? Several simple and not extremely onerous additions should be made to drastically improve the soundproofing of this typical floor. First and foremost, any debris accumulated between the joists should be removed. For 150mm (6 inch) or thicker joists, we would recommend the insertion of medium to high density (around 40kg/m3) mineral wool between the joists. This will help in absorbing medium to high frequencies, converting the sound energy into heat. Sound testing Sound testing is carried out to identify the performance of sound insulation.

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The Basics Of Drywall In the recent past, many American homes contained walls that were made of gypsum plaster – a combination of powder and water applied over a wire mesh. This process was rather lengthy and in an effort to meet the demands of a growing population and need for faster building, drywall was invented. Also known as plasterboard, drywall is made of pre-dried plaster panels: plaster or wood pulp or other materials. Used primarily to form the interior walls of houses, your contractor may erect drywall as part of building a home addition, garage, or even as part of refinishing your basement. While you’re patiently waiting for your contractor to build your private masterpiece, you’ll appreciate how well things start to come together and look almost complete once drywall is erected. Drywall Is Fast! Drywall comes as sheets of plasterboard of various sizes. Depending upon the use of a room, your contractor may choose thicker plasterboard especially in a room for young children and bouncing toys. Thinner plasterboard is appropriate for areas of the house used less frequently. Using these panels, your contractor will essentially line them up against the studs of the wall’s structure and hammer the sides of them into the wood. The process is repeated when applying drywall to the ceiling as well.

Although measurements and secure nailing is important, the artistry of drywall begins during the taping stage. Taping is the process of concealing the joints between drywall panels. It isn’t hard to imagine that placing drywall panels next to each other creates unsightly lines or gaps. These gaps are called joints and taping conceals them. But this isn’t ordinary tape that we’re talking about. Signs Of A Good Drywall Job Contractors tape drywall by first covering its joints with cement, then with a paper strip, and then with more cement. After using a few smoothing techniques, it’s hard to distinguish where a drywall panel starts and ends. In a good drywall job, it’s also almost impossible to find where the panels were nailed into the studs behind them. And a good dry Waller knows how to patch holes as well. In the past, we were told that repairing a hole by stuffing it with newspaper and patching it with material like Spackle is just fine. Professional contractors will tell you however, that although this method works, it leaves weak spots and there’s a better method that requires the expertise of a professional dry Waller. Two Signs of A Good Drywall Contractor Good drywall contractors follow up their initial nailing with a set of second long nails or screws. The second set of nails acts as reinforcement – ensuring that your walls won’t fall down during an important family event or while sleeping! They’re also careful to mix up a batch of cement that doesn’t form air bubbles in the wall’s seams upon drying. These are just a couple of strategies that your drywall contractor will use to create a surrounding just as secure as the foundation that it sits on. By: PaulGlover Article Directory: http://www.articledashboard.com Author Paul White represents FloridaHomeBuild.com. A site designed to help home owners from Florida locate local home contractors with their home improvement projects. Visit Our Site: www.FloridaHomeBuild.com Drywall update: Knauf Tianjin no insurance? Knauf Plasterboard Tianjin is part of Knauf, a German multinational supplier of building materials with a worldwide presence in 58 countries. Knauf Drywall Insulation Wall Linings Shaft Protection News 190209 Building design news Knauf Drywall Insulation Plasterboards Plasters Drylining Aquapanel Tile Backer Partitions Wall Linings Shaft Protection 190209. Knauf Drywall Plasters Plasterboards Insulating laminates Drywall … Building design news Knauf Drywall Plasters Plasterboards Insulating laminates Dry flooring Drywall accessories Metal section applications 060209. Knauf Insulation Wall Linings Shaft Protection News 050209 Building design news Knauf Insulation Plasterboards Plasters Aquapanel Tile Backer Partitions Wall Linings Shaft Protection 050209.

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What Is Drywall? Drywall (also called wallboard, gypsum board, and plasterboard) is an economical building material usually used to face walls and ceiling inside structures. Composed primarily of gypsum rock stretched out in a flat sheet between two pieces of thin board (or heavy paper, as some say),

drywall is low-budget and easy to installtwo reasons why it’s the most commonly used interior building material throughout the world!

Forms of Drywall White boardregular. This form of drywall looks appealing, is the cheapest, and is used for those who need either a quick-fix or wish for a nice appearance at a very cheap price. Fire-resistive ("Type X") – A bit more expensive, for obvious reasons. This form of drywall holds up better, although it has its drawbacks as well. Green Boardwashrooms and other high-humidity areas. This form of drywall presumably absorbs moisture well.

Drywall Specifications and Types The standard cut for drywall in the United States and Canada is 4 feet (1220 mm) wide and eight feet (2440 mm) long, although these sheets can be custom cut to exact-fit the specifications and dimensions of any home. Some industrial sheets are cut at 16 feet (4880 mm). The standard measurements for drywall in other countries are slightly different: 1200 mm wide and 2400 long, although that varies. Thickness varies, too. Typically, drywall is from one-half inch (12mm, 12.5 mm, or 12.7 mm) to one inch (25 mm), but it slightly differs in every country, depending on that country’s building regulations and system of measurement.

The United States and Canada together possess the greatest number of gypsum board users in the world. The gypsum board (drywall) market is booming and continues to rise. This is probably due to increased real estate and the fact that ‘an average American home contains seven metric tons of gypsum’ (U.S. Geological Survey), which offers the possibility that drywall might contribute to the increase in home value. Drywall is the material for all seasons. This material provides protection and lightweight support and adds an attractive appeal to the home. By: Herbert Romaro - Article Directory: http://www.articledashboard.com Find more drywall resources and other great topics at info-checkpoint.info. Lafarge Romcim Medgidia | Medgidia Google Satellite Map Lafarge Romcim Medgidia on the Medgidia map. Satellite image of Medgidia, Romania and near destinations. Travel deals. Lafarge Westbury closure set for April Only four jobs will remain at the Lafarge Cement Westbury plant when it ceases production in April. EBRD’s exit from Lafarge Ciment puts the company’s value at more … EBRD’s exit from Lafarge Ciment puts the company’s value at more than one billion euros Arco Avon at Lafarge on Flickr – Photo Sharing! Dredger Arco Avon unloading at Lafarge Aggregates Ltd, Greenhithe, Kent.

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www.fireplasterboard.co.uk is dedicated to providing quality information on the subject of  plasterboard with fire qualities as manufacturered by British Gypsum, Lafarge and Kanuf
Here you will find helpful reviews, informative information and tips and much more. This site is in the format of a ‘weblog’ so that each time I post new information, it will come to the top of the front page. This means that you can check back here frequently to see new updates to the information found here.

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Phil Lidgerton

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