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What Is Plaster Made Of?

Plaster is one of the most commonly used materials when it comes to building construction. It’s a crucial component that’s incorporated in coating walls, ceilings as well as partitions and it hardens on drying. Plastering is one of the most ancient building materials which has taken over mud to plaster reed or sapling huts so as to serve as a protection against the elements. Here, we’re going to take a look at the multiple compositions of plaster. These components are very important due to the fact that they form a protective coating on whatever they are used on. They work to protect surfaces such as ceiling and underlying walls from scratches or any form of damage.

Plaster comprises a few materials which includes gypsum, lime or cement and all operates in a similar way. Gypsum is made of calcium sulfate dihydrate and it’s the main component of main forms of plaster, sidewalk chalk, blackboard, drywall and more. Meanwhile, lime plaster is made up of sand, water and lime ( mostly non hydraulic hydrated lime). And lastly, cement which is a mix of suitable plaster, portland cement, sand as well as water.

The plaster is usually produced as a dry powder which is mixed thoroughly with water to create a stiff but also a paste that’s workable immediately before it’s applied to the wall or ceiling.

It’s quite easy to confuse a drywall with a plaster but there are some differences. Not only is plaster a much older style of wall construction than dry wall, but it’s also a lot more expensive than installing a drywall. Plaster walls are also able to provide you with a more durable finish when compared to a drywall and it makes for a better quality finish.

How Much Do Plasterer’s Charge?

If you’re look to plaster your walls, one of the first things that’ll come to mind is the cost to complete the project so you can set a budget and start planning as soon as possible. However, the amount charged by plasterer, just like other tradesmen, is based on a number of factors. These factors include how urgent the project is, how long it’ll take as well as what materials are needed. Some of the other influencing factors of plastering jobs include the accessibility of the location, the size of the wall to be plastered and also the current condition of the old plaster. Therefore, you can expect a plaster work of multiple rooms with deteriorating old plaster to be more expensive than a simple refresh of a single wall in a relatively good condition.

It’s likely you’d also get the average cost per room reduce when you require the plastering of several rooms. As a result, to get a final price for your plastering work, you’ll have to call in a qualified and experienced tradesman who’ll consider all the unique requirements of your project and provide a suitable quote.

✓ Medium sized room plastering. A medium sized room would be a room that’s roughly between 3.5m by 5m or one that can comfortable accommodate up to 8 individuals. This will cost within the range of £520 to £870.

✓ Small sized room plastering. Small room such as small kitchens, box bedrooms, utility rooms and the likes will require less plaster but more intricacy with the plasterer having to work in tight spaces. This will cost within the range of £215 to £370.

Cutting a plasterboard is a relatively simple process requiring only some basic tools. Unfortunately, the lack of knowledge serves as big deterrent for many people who wishes to put it to good use. Plasterboard can actually be sawn using an ordinary timber saw that’s fine-toothed to get a cleaner edge. However, the basic tools you may also need includes a sharp knife (Stanley Knife), pencil, a fine sandpaper, a straight edge and measurement tape as well as a wall board saw. Let’s have a look at the cutting process!

✓ Firstly, you need to put the plasterboard sheet flat on a firm surface.

✓ Use the tape measurement to measure the cut you wish to make.

✓ With the help of a pencil, simply mark out the part you wish to cut on the plasterboard’s front side.

✓ Once marked, place a spirited level over the marked spot on the plasterboard sheet you want to cut.

✓ Cut a shallow mark into the plasterboard sheet using the Stanley Knife to cut along the edge.

✓ The cut should be slow and gradual to ensure you do not wander off the edge of the marked area.

✓ Once the shallow cut has been made, turn the plasterboard sheet on its edge and deliver a quick and sharp push towards the plasterboard’s back and on one side of the cut.

✓ Place the plasterboard sheet backing against a flat surface ensuring the line of the cut is over an edge. Once done, give a quick and sharp push towards the back of the plasterboard sheet and on the part of the board is reaches beyond the edge.

✓ Using a fine sandpaper, remove all forms of paper burrs.

The process of cutting plasterboard requires a lot of practice. If you lack the training and experience, the cutting process is best left to a proficient professional who can guarantee the best results the first time and save you some additional costs due to potential damages.

There are several different kinds of plastering. ‘Dot and dab’ refers to a base layer of plasterboard which is attached to a wall using ‘dabs’ of adhesive. ‘Floating’ is a technique where a backing or undercoat plaster is applied to walls. ‘Skimming’ or ‘reskimming’ refers to the very thin final decorative layer of plaster.

Also referred to as drywall, plasterboard is a panel that features an inner layer of gypsum and spread between facer as well as backer paper. It is mostly incorporated in the construction of both interior walls and ceilings. Plasterboard can be made to be humidity resistant, fire resistant as well as noise resistant. Due to these reasons and also the fact that it’s very easy to install and very affordable, plasterboard is a very popular choice when it comes to interior walls and ceilings.

One of the major issues that most homeowners face when fitting plasterboard is the thickness required to make the project a long lasting one. But not to worry, we got you covered! If you’re about to install plasterboard for your ceiling and wondering the thickness that’ll be appropriate, then you’ve come to the right place. In general, the standard plasterboard sheet size is 120 cm in width and within the range of 180 cm to 360 cm in height. These sizes are designed to provide the much needed support to the standard stud spacing which is 160 cm. Depending on the manufacturer, plasterboard can be in four different widths.

Now talking about the thickness, there are two standard thicknesses of plasterboard - 9.5 mm and 12.5 mm. The sizes of plasterboard for ceilings are 9.5 mm or 10 mm. Most individuals tend to assume that the thicker the plasterboard the better, but this is absolutely false. A thicker plasterboard will only stick harder to the ceiling which will make it hard to seal joints if required.

Plasterboards are a great noise insulators which can also reduce disturbances from other activities. As a result, for walls, size of plasterboards that’s considered appropriate for walls is 12.5 mm or 13 mm.

Artexing a ceiling can be a tricky job, but whether you’re considering hiring a professional or DIY, it’s helpful to know how it’s done.

Artex is available either in a paste or powder form. The paste is ideal if you’re making small repairs or additions to an existing ceiling. But, if you have a whole ceiling to cover, the powder is more cost effective. When you’re ready to get started, you’ll need to mix the powder up with cold water according to the instructions.

It’s possible to artex over plaster, plasterboard or paint. If you have a plasterboard surface, you should tape and fill any joints or cracks before you begin. Plaster and plasterboard both require a coat of sealant or primer first. You can usually artex straight over paint, but any gloss paint should be sanded down, and any dark paints covered with a layer of white.

Artexing can get quite messy, so make sure you empty the room you’re working in as much as possible, lay down sheets and wear protective clothing and glasses. You might want to practice on a piece of board before you start on the ceiling.

Start by using a brush or roller to cover a 500 square cm area with a generous layer of artex. Then use a brush, comb or roller to create your chosen texture. Every time you do a new section of ceiling, try to blend it with the other sections you’ve done. Don’t be tempted to cover the whole ceiling before you start adding texture – the artex will dry too quickly for you to do it all in time.

Artex usually needs 12-24 hours in a well-ventilated space to dry completely.

Can You Plaster Over Artex?

The short and simple answer to this question is yes, you can plaster over Artex. However, you must also note that plastering over Artex may not be the best choice as Artex is porous and as such, you’d have to detach the stripping so as to get a smooth and even coating. In the event whereby your ceilings or walls have Artex on them, you’ll have to smooth the Artex in order to obtain a plaster of solid coat.

✓ Preparing Artex for plastering. First and foremost, you’ll have to detach any bumps before you can plaster over the Artex. Do note that you don’t have to completely remove the Artex, all that’s needed is just enough to get a coat of plaster. Make use of a scraper to get rid of the bumps on various Artex designs like swirl and bark. Once you’re through getting rid of as much bumps as possible, there’s the need to seal the Artex due to the fact that it can absorb the moisture out of the plaster which will cut the time to get a good finish to little or nothing. You can use a PVA and water mix to do the job!

✓ The PVA mix. This is done to seal off the porous Artex in order to stop it from absorbing moisture from your plaster which can make it start to crack and crumble. To do this, simply mix half PVA and half water, then use a brush to paint the mixture over the plastering area. Once done, you can give the plastering surface about two to three coats and wait for the solution to dry off within a hour or two.

Plastering over Artex is not as hard as it seems, but if you lack the confidence to complete the task, simply contact a professional for help.

Plasterboard or drywall is simply gypsum plaster covered from both sides by thick paper layers. It’s known to be a highly versatile product used on both interior walls and ceiling as a result of its numerous advantages. This popular material in residential buildings can be designed to be fire resistant, humidity resistant and noise resistant. They have a low impact on the environment, while also being quite easy to repair and perfect to hide stuffs from plain sight. Most home and property owners in the UK have this material installed in their space as despite the multiple benefits, they’re also quite affordable. However, if you’re thinking about installing a plasterboard on your ceiling, one challenge you’re likely to face is determining the appropriate plasterboard thickness to incorporate as this make or mar your entire project. In this post, we’re going to take a look at the right plasterboard thickness for ceiling so as to help you make an informed decision moving forward. Let’s take a look!

Firstly, let’s consider the size of the plasterboard sheet. The standard plasterboard sheet size is 120 cm in width and within the range of 180 cm to 360 cm in height. These sizes are designed to provide the much-needed support to the standard stud spacing which is 160 cm. Depending on the manufacturer, plasterboard can be in four different widths. Now talking about the thickness, there are two standard thicknesses of plasterboard - 9.5 mm and 12.5 mm. The sizes of plasterboard for ceilings are 9.5 mm or 10 mm. Most individuals tend to assume that the thicker the plasterboard the better, but this is absolutely false. A thicker plasterboard will only stick harder to the ceiling which will make it hard to seal joints if required.