As nouns the difference between drywall and plasterboard is that drywall is a building material comprising a sheet of gypsum sandwiched between two pieces of heavy paper, used mainly for interior walls and ceilings while plasterboard is. Lath And Plaster Wikipedia. I tackled the same project. Plaster Both drywall and plaster make for solid, long-lasting wall coverings. Ultralight Drywall. See typical tasks and time to apply gypsum plaster, along with per unit costs and material requirements. Im posting this as a PSA to identify potentially asbestos containing material prior to demolishing a room. Gypsum plaster is also advisable where river sand/natural sand is not easily available for the construction. Narrow strips of wood, called lath, were nailed horizontally across the vertical studs. Use a soft paintbrush to completely wipe dust off the roughened plaster. To finish drywall, start by applying a coat of drywall joint compound to any screws, joints, and outside corners on the drywall. Drywall is more common, faster to install, less expensive, less labor. I have no contractor skill, simple housewife. parlor wall was opened to install a split system A/C unit. None really, it is mostly a difference in what you call the same product. Plaster is the most durable wall finish on the market today, and it can stand up to just about anything you or the kids throw at it. Cut the crack deep into the drywall so that it forms a groove about 1/4-inch wide; this creates a bonding surface for the plaster of Paris. However, there are few differences between gypsum and plaster of Paris. and raising them up to the ceiling requires two sets of strong arms or a drywall lift. QuietRock vs Double Drywall Comparison. Harder than regular gauging and lime putty finish; Finish coat for one- and two-coat veneer plaster systems. plaster wall vs drywall plaster vs drywall which is better for your home interior wall options other than instead of basement wall options instead of drywall thickness besides plaster over sheetrock w. The drywall you purchase needs to be the same thickness as your existing drywall. Installing a drywall ceiling requires more physical work vs. Installing drywall is a fairly quick process compared to that of plastering but however, in our days is a shortage of skilled plasterer labors. Some might describe me as obsessive or possibly deranged, but they're just haters. Drywall hasn't been around as long, but a good drywall job should last quite a while too. Viewed 5k times 2. No doubt, we use the word plaster as a coating material for our walls and ceilings. This type of wall takes half-inch drywall and uses it as a base for a strong plaster wall. That's where we come in—at Fresh Coat Painters, we offer complete drywall and sheetrock repair services, saving you time, money, and stress. Short answer - most of the time. This is a common technique used among professional contractors hired. Drywall material is easier to work than plaster and can be installed much more quickly, which is why it is the less-expensive option. Plaster insulates (sound and air) better than plain drywall. First, let's look at plaster. The repair techniques on this page can be used to repair wall and ceiling cracks in plaster or drywall. 1/2" wallboard and which one is best to soundproof a room. This makes it a lot easier to make use of the veneer plaster. Harder than regular gauging and lime putty finish; Finish coat for one- and two-coat veneer plaster systems. There is a thin line of difference between spackle and plaster. You might even achieve the same sort of results with all of them. And if you don't know what you're doing, then it's a lot harder to fix your mistakes than it is with joint compound. Plaster Plaster is a cement type mortar that's troweled onto an older homes lath (wood) type backing to create the interior walls. Drywall is cheaper in price, time and preference. The next layer of plaster enters the scratches to form a bond. Lime plaster takes much longer time to settle and harden, so it is easy to , make designs and add pigments in lime plaster. Because drywall panels are thinner than plaster walls, drywall is not as effective of a sound barrier. Return to Top. Typically, plaster is pre 1940's, drywall is more post 1950's, and plaster over drywall between 1940 to 1950. There are a few reasons for this. Drywall or Plaster is one of the first and most important decisions you make for your home. You can count on us whether it be drywall or plaster repair, we are here to get the job done and at an affordable price. What we refer to today as drywall was originally called Sackett Board when it was invented by U. Repairing damaged plaster, drywall, or sheetrock can be a relatively large undertaking. When replacing the Plaster and Joint Compound - Drywall Finishing - Drywall Talk. Typically, plaster is pre 1940's, drywall is more post 1950's, and plaster over drywall between 1940 to 1950. Enter drywall, also known as the brand name Sheetrock. Get fair costs for your SPECIFIC project requirements. Spackle dries more quickly than plaster and can be applied to drywall in a single layer. For those, you really should be using a modern day base coat plaster like Domtar's Perlite Admix Hardwall or US Gypsum's Structolite. The tapered drywall boards are used to countersink the tape in taped jointing whereas the tape in veneer plastering is buried beneath a level surface. Lath And Plaster Wikipedia. What You Should Know about Water-Resistant, Greenboard Drywall Whether you're building a new bathroom in your home, or you're remodeling a section of your house that's exposed to humidity, it's important to know about greenboard and where it's appropriate to use it. The Gold Bond 1/2 in. It is available in 3/8", 1/2", and 5/8" Fire Code it absorbs water faster than regular drywall ,,,,,. History of Drywall and Asbestos. You can patch large and small holes in wood, drywall and metal as long as you have the right type of patching and repair products on hand. parlor wall was opened to install a split system A/C unit. Let's looks at both:. Drywall sheets average about 60 lbs. What's scary about asbestos in drywall is that, depending on the structure of the material, even sanding it could release the fibers and sanding is a common activity many people take prior to repainting, after spackling or when renovating. Rock lath, also referred to as gypsum lath or button board, is a traditional base material used to support plaster. Make sure you choose a top-quality, latex stain blocking primer for use on plaster. Summary - Gypsum vs Plaster of Paris. I can see why many opt to put a drywall ceiling under the plaster instead. Nothing adds more to the look and feel of your home than the material you choose for the interior walls. Plaster also tends to be good for sound control, and can help with temperature control (more mass = more stable temps). Drywall Plaster as an interior wallcovering has been around since the Egyptians used it over 4,000 years ago (but Biblical scholars say that the ancient city of Jericho had plaster walls in 7,000 BC). How-to articles, contractor directory, material calculators etc. How much does drywall installation cost? Drywall installation costs $700-$3,400 for 1,000 square feet of drywall. Veneer plaster is the most effective wall finish, but it comes with a much higher cost. Home page for Drywall 101. need the easy way. My belief was that if i tore the old wood lath and plaster off, i could re-wire and insulate all of the interior walls, as well as get rid of alot of extra weight. It's widely considered that gypsum is more abundant and cheaper to mine and process, not sure if that's accurate though. 78 per square foot, but can vary significantly with site conditions and options. One coat veneer plaster over dry board is an intermediate style step between full multi-coat "wet" plaster and the limited joint-treatment-only given "dry" wall. So when it gets wet, you've got a much better chance of drying it out, vs with drywall you're replacing. Drywall may also be called gypsum board or plasterboard. Next, once the first coat of compound is dry, sand it down and knock off any residual compound that didn't dry evenly with a drywall. The smooth, even texture of the plaster veneer is much more friendly to the application paint than the drywall mud. Advantages and Disadvantages of Sheetrock vs. Plaster vs drywall - Is there anyway to identify if my walls are plaster or drywall. Drywall sizes and thicknesses matter when you need to get the right drywall for your repair project. If you are having floor to ceiling tiling, you will need to check it will support the weight of the tiles if you do d+d it. Return to Top. Drywall or Plaster is one of the first and most important decisions you make for your home. This post gets down to the brass tacks of soundproofing a wall. The drywall process is not labor intensive at all, resulting in an inexpensive product. 00 per square foot. Disadvantages of Gypsum Plaster: Gypsum plaster cannot be used for outside walls since they retain dampness. Joint Compound Vs Plaster. That's one of the reasons why drywall is the most preferred option. Plaster veneer (US terminology) or plaster skim (UK terminology) is a construction methodology for surfacing interior walls, by applying a thin layer of plaster over a substrate—typically over specially formulated gypsum board base, similar in nature to drywall. Get fair costs for your SPECIFIC project requirements. Slightly more expensive per sqft total, but supposedly more environmental friendly. This means that the average 4-by-8 sheet of drywall can weigh 20 to 30 pounds. The plaster is used for making the top layer of the wall or the layer before the tiles. First lets look at plaster. This type of wall takes half-inch drywall and uses it as a base for a strong plaster wall. Drywall vs Plastering. Disadvantages of Gypsum Plaster: Gypsum plaster cannot be used for outside walls since they retain dampness. Nothing adds more to the look and feel of your home than the material you choose for the interior walls. The drywall you purchase needs to be the same thickness as your existing drywall. Moreover, another difference between gypsum and plaster of Paris is that we can mould plaster of Paris into different shapes when we moisten it while we cannot do this for gypsum. Sheetrock and drywall are much different than plaster, though: Compared to the traditional lath and plaster method that takes up to one week, installing drywall and, implicitly, Sheetrock, takes only a couple of days. When estimating drywall or plaster costs, contractors generally first determine the square footage of the walls and ceilings to be covered with either drywall or plaster. Drywall is a three day job. Drywall or Plaster is one of the first and most important decisions you make for your home. But these days most people prefer the drywall method over the plaster method. SHEETROCK® wall and ceiling boards are up to 15% lighter than USG Boral Standard Core Plasterboards for light and easy installation, easy score and snap and superior sag resistance. Find quality drywall panels online or in store. The smooth, even texture of the plaster veneer is much more friendly to the application paint than the drywall mud. Some might describe me as obsessive or possibly deranged, but they're just haters. Drywall hasn't been around as long, but a good drywall job should last quite a while too. While drywall is porous, plaster is not. Invest a little time and energy and make wall repairs the right way before investing in a new paint job. Known variously as plasterboard, gypsum board, Sheetrock (a trade name), rock, or wallboard, drywall is a uniform panel of gypsum plaster pressed between thick sheets of paper. Although it's a little more difficult to patch, plaster will be able to take a little more abuse. While that may seem like a substantial amount, consider the fact that you only get one chance to do this. Drywall vs Plaster. To finish drywall, start by applying a coat of drywall joint compound to any screws, joints, and outside corners on the drywall. Also gypsum plastering cannot be done in areas which are continuously damp such as bathroom etc. A drywall primer sealer is a low-cost paint that can make new drywall look like expensive plaster. and raising them up to the ceiling requires two sets of strong arms or a drywall lift. That's right: Drywall is just a plaster sandwich. What we refer to today as drywall was originally called Sackett Board when it was invented by U. Drywall (also known as plasterboard, wallboard, gypsum board) is a panel made of gypsum plaster pressed between two thick sheets of paper. The benefit of a double thickness of drywall with Green Glue sandwiched between is less noise penetration. All the plaster walls in every house I have owned have been far smoother than any drywall job, and the noise attenuating properties are far superior to drywall. , Gypsum plaster is costlier than traditional cement motar plaster (cement and sand) for same thickness of plaster. If you are old school, you may still prefer to do it the plaster way. Installing a drywall ceiling requires more physical work vs. Once nailed to the wood studs, a professional sheetrock installer will cover the seams with drywall tape, then a coat of plaster. Plaster is often thicker than this. When faced with old, damaged plaster walls, one technique to dress up the room is to install drywall over the existing plaster. Gypsum Company in 1916. Plaster and lathe is more durable and structurally adds strength to the walls. All sheetrock is a form of drywall, but not all drywall is made under the brand name of Sheetrock. Plaster Vs Drywall When to use drywall. Certified by GECA and may contribute to Green Star Points. Drywall may also be called gypsum board or plasterboard. If the plaster walls in your home are unattractive or too costly to repair, you can cover them with drywall and start fresh. Drywall is the less expensive and labor intensive option. When replacing the Plaster and Joint Compound - Drywall Finishing - Drywall Talk. The tapered drywall boards are used to countersink the tape in taped jointing whereas the tape in veneer plastering is buried beneath a level surface. Veneer plaster comes really close to being as convenient as traditional drywall. It hardens quickly (you guessed it, in 45 minutes), shrinks very little and dries hard as a rock. In almost every aspect, plaster is superior to drywall. Employee Sign-in. However, plaster labor costs are a much higher percentage of the total. Re: Veneer Plaster Vs Drywall The right crew can blow out a blue board veneer job faster than any drywall crew and it doesn't take years to dry nor does it create mounds of dust. I am sure that refers to the setting time. The drywall you purchase needs to be the same thickness as your existing drywall. The smooth, even texture of the plaster veneer is much more friendly to the application paint than the drywall mud. depends, I always preferred drywall as opposed to paneling but if the paneling is over plaster and the plaster is in terrible condition removing the plaster and installing new drywall can be a nightmare you may have to rewire and replumb the whole house if you are getting inspections done, so take one room or even one wall at a time, if you. Drywall (also known as plasterboard, wallboard, gypsum board) is a panel made of gypsum plaster pressed between two thick sheets of paper. Laths were small, thin boards that carpenters nailed across wood studs. The difference between plaster and joint compound, explained! Leah shows and tells you about pre-mixed joint compound, setting-type joint compound, and traditional plaster. AsktheBuilder. Instead of a sheetrock, plasterer applies the very wet plaster (composition of plaster of Paris and sand with lots of water) over 5/8″ blue board, first over the seams and fasteners, and then skims 1/16′ - 1/8″ coat over the whole surface. Plaster compounds adhere better to plastered walls so it's not recommended to use a drywall compound on a plastered surface. Active 6 years, 5 months ago. 1 pounds per square foot, versus 2. Yesterday my contractor pt up sheetrock over one of my plaster walls in my front parlor and in my entrance hall. When replacing the Plaster and Joint Compound - Drywall Finishing - Drywall Talk. Are you wondering whether to opt for plaster or drywall installation? In order to choose the correct building material, you need to know their differences. The type of damage will determine which route to take with drywall. Introduction Drywall is a panel made of gypsum plaster pressed between two thick sheets of paper. You can use drywall joint compound as your gauging coat plaster, but I wouldn't suggest it to fill deeper holes and gouges that extend into the base coat plaster. Sheetrock is light and cheap. Plaster insulates (sound and air) better than plain drywall. And if you don't know what you're doing, then it's a lot harder to fix your mistakes than it is with joint compound. What is drywall?. If you are curious as to the benefits and. Rock lath, also referred to as gypsum lath or button board, is a traditional base material used to support plaster. PLASTER AND DRYWALL REPAIR In most homes built before 1945, the interior walls were finished with plaster and lath. Before sheetrock came into existence in the 1950's, interior walls and ceilings were constructed slightly differently. You may need a helping hand to. Viewed 5k times 2. Particularly on most new construction jobs and even many refurbishment jobs. Slightly more expensive per sqft total, but supposedly more environmental friendly. If you need to patch or repair a large hole or entire section of wall, you can either mix and spread new plaster, or cut out a piece of ¼" drywall to use as a patch (the thickness of the drywall of course will depend on the thickness of the plaster). See typical tasks and time to remove lath and plaster, along with per unit costs and material requirements. However, unless you're doing the work yourself, this is not what will cost you the money. Narrow strips of wood, called lath, were nailed horizontally across the vertical studs. Sheetrock and drywall are made of flattened gypsum plates that are sandwiched between two heavy papers. Wet plaster has long been a popular construction technique, most often found in more historic, period homes. This is the most effective way to attach drywall over plaster. The Gold Bond 1/2 in. It's cheaper and faster, meaning it costs less to pay someone to do it for you, or if you feel confident, you can go ahead and try it yourself. Sound control. You should assume that any older damaged plaster in fire-rated walls contains asbestos until a sample has been tested. Is there any difference between Sheetrock and drywall? If this question is asked to any civil engineer or a builder, the answer got will be that there is no difference between the two. Original structure was plaster over wood lath, an addition was drywall. It includes many different pieces with different thickness. This post gets down to the brass tacks of soundproofing a wall. Quick Quiz, does anyone feel they would be happier sitting under a coconut tree in the Bahamas with your feet in warm sand while drinking margaritas served from pretty senorita's more relaxing than the rush of applying plaster 🙂. This regular gypsum board is designed to permit rapid trowel application and the tapered edge allows for strong joints. A drywall primer sealer is a low-cost paint that can make new drywall look like expensive plaster. One coat veneer plaster over dry board is an intermediate style step between full multi-coat "wet" plaster and the limited joint-treatment-only given "dry" wall. Moreover, the drywall vs plaster wall is also going to be less energy-efficient. Ddiane D's discussion on Hometalk. It's important to understand the difference between the two methods and the skills required before making your decision. See typical tasks and time to apply gypsum plaster, along with per unit costs and material requirements. Plaster is the most durable wall finish on the market today, and it can stand up to just about anything you or the kids throw at it. He said the sheet rock was the best. New plaster should be allowed to dry thoroughly before you apply a primer and top coat. You may be wondering what is the difference between plaster and drywall? Drywall is gypsum sheets (sheetrock) screwed or nailed to the studs. The production of plaster of Paris is mainly from gypsum. Sheetrock is light and cheap. Well to be frank, I've done a lot of drywall installation and repairs but other than tearing down plaster walls my knowledge is limited when it. It's important to understand the difference between the two methods and the skills required before making your decision. Viewed 5k times 2. Installing drywall is a fairly quick process compared to that of plastering but however, in our days is a shortage of skilled plasterer labors. Nothing adds more to the look and feel of your home than the material you choose for the interior walls. It includes many different pieces with different thickness. You should assume that any older damaged plaster in fire-rated walls contains asbestos until a sample has been tested. Thanks for the info Jeff. The drywall thickness you apply on the wall will undoubtedly affect the level of soundproofing you're going to acquire. I think it was just for decoration or to make it look like old time lathe and plaster. Blueboard Although these popular wallboard options are often discussed interchangeably, important differences exist between drywall and blueboard. Gypsum Company. During production, drywall is created by pressing gypsum plaster between sheets of paper and drying the sheets in an oven at the factory. One coat veneer plaster over dry board is an intermediate style step between full multi-coat "wet" plaster and the limited joint-treatment-only given "dry" wall. Drywall contractors can very efficiently hang drywall in a short amount of time and drywall is by far the more popular option of wall finishes. Moreover, the drywall vs plaster wall is also going to be less energy-efficient. "Moisture in drywall really weakens the integrity of the material, and if it's been wet it's usually best practice to replace it to save any potential of future 're-repairs,'" says Jeremy Wrenn, President of Wrenn Home Improvements in Wake Forest, N. You may need a helping hand to. POST a QUESTION or READ FAQs about plasterboard cracks, drywall cracks, gypsum board cracking & movement. I can see why many opt to put a drywall ceiling under the plaster instead. Hanging ceiling drywall is not easy for most homeowners but the trick is to get a finish that is flat and seamless. Drywall sheets average about 60 lbs. Plaster vs Drywall, which is best? As many of you know by now, I'm a stickler for historic accuracy when it comes to remodeling. Veneer plaster comes really close to being as convenient as traditional drywall. See typical tasks and time to remove lath and plaster, along with per unit costs and material requirements. That said, plaster is not as popular because it's a bitch to work with and is expensive. (The typical contractor employs workers skilled with drywall construction, not plaster specialists. Spackle being made of a gypsum compound with glue and hydrated calcium, is different from the plaster which is made of sand and cement. Shop plaster in the drywall repair section of Lowes. Over a cup of coffee a friend had asked my opinion on using plaster vs drywall to finish interior walls. Moreover, the drywall vs plaster wall is also going to be less energy-efficient. If the plaster walls in your home are unattractive or too costly to repair, you can cover them with drywall and start fresh. There are many factors to consider when deciding whether to use plaster or drywall on a project. Plasterboard Coefficients of Thermal & Moisture Movement Data & calculations of the amount of thermal & moisture-related movement in gypsum board. Except the plaster in my house uses some type of dry wall backboard. Drywall or sheet rock, as it is sometimes called, is similar to plaster; but in the production process of drywall, gypsum plaster is pressed between sheets of paper and dried in an oven at the factory. Handling of large sheets can be difficult, selecting the right size is a. Plaster is often thicker than this. The Pros And Cons Of Plaster. By contrast, plaster is applied only to plaster walls. Certified by GECA and may contribute to Green Star Points. Apply mixed plaster of Paris to the crack as smoothly as possible with a drywall taping knife. When replacing the Plaster and Joint Compound - Drywall Finishing - Drywall Talk. You may choose one type for your. Drywall (also known as plasterboard, wallboard, gypsum board) is a panel made of gypsum plaster pressed between two thick sheets of paper. While the material costs of plasterboard vs drywall are roughly the same, when it comes to the installation drywall vs plaster cost, plaster is more expensive than drywall. Drywall is manufactured as wall-sized boards in varying thicknesses. Although this can be a benefit, it also means that plaster walls cause more of an echo within a room, so you will want to think more carefully about placing sound absorbing materials like rugs and curtains in a plaster-walled room. They can be anywhere from 70% - 90% of the total. That's where we come in—at Fresh Coat Painters, we offer complete drywall and sheetrock repair services, saving you time, money, and stress. For most cracks, taping is an effective and permanent solution, but if your plaster is cracking because it is loose. , Gypsum plaster is costlier than traditional cement motar plaster (cement and sand) for same thickness of plaster. Asbestos plaster is most dangerous when it is damaged. When replacing the Plaster and Joint Compound - Drywall Finishing - Drywall Talk. That's where we come in—at Fresh Coat Painters, we offer complete drywall and sheetrock repair services, saving you time, money, and stress. Lath and plaster walls are usually thicker than most drywall sheets. Gypsum plaster is also advisable where river sand/natural sand is not easily available for the construction. The production of plaster of Paris is mainly from gypsum. Drywall is shipped hard and ready for installation. Drywall finishing requires a good deal of craftsmanship, which is why the gypsum industry and drywall professionals have codified a set of professional standards that breaks the process of finishing drywall into five distinct levels. need the easy way. Thanks for the info Jeff. If you over apply sanding it down is way harder than joint compound. The drywall is attached directly to the wall studs and a thin veneer of plaster is applied on top. There are a few reasons for this. My house was built in '48 or '49 and it has plaster over gypsum sheet lath - looks like drywall from behind. Drywall contractors can very efficiently hang drywall in a short amount of time and drywall is by far the more popular option of wall finishes. Drywall may also be called gypsum board or plasterboard. When lath is figured into the thickness, then lath and plaster walls are considered to be thicker than drywall. Except the plaster in my house uses some type of dry wall backboard. The drywall process is not labor intensive at all, resulting in an inexpensive product. This is the most effective way to attach drywall over plaster. Lath and plaster walls are usually thicker than most drywall sheets. In almost every aspect, plaster is superior to drywall. It actually offers many of the same benefits that using drywall does. Gypsum vs Drywall. As nouns the difference between drywall and plasterboard is that drywall is a building material comprising a sheet of gypsum sandwiched between two pieces of heavy paper, used mainly for interior walls and ceilings while plasterboard is. Plaster vs drywall. Particularly on most new construction jobs and even many refurbishment jobs. Q I know that blue board is not the same as standard drywall. If you can leave it plaster I would. plaster vs joint compound Blueboard and Plaster versus Sheetrock and Joint compound: Understanding the differences ! When it comes to installation of your walls and ceilings today's construction relies on one of two types of systems, they are blueboard and plaster, or sheetrock and joint compound. Blueboard Although these popular wallboard options are often discussed interchangeably, important differences exist between drywall and blueboard. Bennecoff Drywall & Plaster of New Cumberland, PA takes pride in providing clean & meticulous drywall and plaster service. Drywall Vs Plaster The Difference Between Popular Wall Materials. Shop plaster in the drywall repair section of Lowes. Harder than regular gauging and lime putty finish; Finish coat for one- and two-coat veneer plaster systems. Drywall is shipped hard and ready for installation. The materials are alot more, and the labor is even more in cost. If you need to patch or repair a large hole or entire section of wall, you can either mix and spread new plaster, or cut out a piece of ¼" drywall to use as a patch (the thickness of the drywall of course will depend on the thickness of the plaster). You may be wondering what is the difference between plaster and drywall? Drywall is gypsum sheets (sheetrock) screwed or nailed to the studs. Ultralight Drywall. When estimating drywall or plaster costs, contractors generally first determine the square footage of the walls and ceilings to be covered with either drywall or plaster. Damaged asbestos plaster is known as "friable asbestos", which means the material can easily break and crumble, releasing asbestos fibers into the atmosphere. However, plaster labor costs are a much higher percentage of the total. Yesterday my contractor pt up sheetrock over one of my plaster walls in my front parlor and in my entrance hall. Plaster Vs Drywall When to use drywall. However, unless you're doing the work yourself, this is not what will cost you the money. Drywall systems have become a popular choice over recent years, partly because it's quicker to install, and as a result is widely used in the construction of new building developments. Drywall may also be called gypsum board or plasterboard. Well to be frank, I've done a lot of drywall installation and repairs but other than tearing down plaster walls my knowledge is limited when it. Plaster is also much more effective at muffling sound than drywall. On the first day, you hang the drywall, apply the first coat of joint compound, and let dry overnight. Quiet brand products improve architectural freedom and promote sustainable construction. Tongue and Groove Wood Ceilings are made using 4 by 8 foot or longer drywall sheets that are screwed to joists of the floor above. Make sure you choose a top-quality, latex stain blocking primer for use on plaster. The drywall adds mass, which prevents sound wave penetration, especially lower frequency, and the Glue absorbs sound vibration-damping sound vibration movement. Drywall is shipped hard and ready for installation. Thanks for the info Jeff. Drywall or sheet rock, as it is sometimes called, is similar to plaster; but in the production process of drywall, gypsum plaster is pressed between sheets of paper and dried in an oven at the factory. Plaster and drywall are the two most favorited ways to finish a wall, and both can add benefits to the overall. A drywall primer sealer is a low-cost paint that can make new drywall look like expensive plaster. Viewed 5k times 2. com: Drywall primers and drywall sealers are very different. Plaster, stucco, render, etc have been around for millennia with so many variables and formulas that a 1000 page book couldn't cover everything. Note: A scratch or 'key' coat refers to a base coat which is lightly scratched before the plaster dries and the top coat/s are applied. plaster for my ceiling. So, while a highly experienced plasterer may take pride in the workmanship and levels of expertise needed to use plaster (not to. It is used to make interior walls and ceilings. The repair techniques on this page can be used to repair wall and ceiling cracks in plaster or drywall. Sheetrock is a trademark for drywall made by the US. It actually offers many of the same benefits that using drywall does. For those, you really should be using a modern day base coat plaster like Domtar's Perlite Admix Hardwall or US Gypsum's Structolite. It hardens quickly (you guessed it, in 45 minutes), shrinks very little and dries hard as a rock. Depending on what kind of plaster you have, you will have one of two different binders, lime or gypsum. Drywall, on the other hand, involves the nailing of sheetrock boards to studs, giving the room a smooth, seamless look. Fire-rating is based more on composition, thickness, finish level (level 3 vs level 5, etc), insulation type, and substrate (wood vs metal, etc) rather than plaster vs gypsum. Have been getting into some of the old homes with cement board and plaster on the ceilings and lath and plaster on the walls and alot of these people have damage to these areas.