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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.

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.

How To Plaster A Wall

In order to plaster your wall successfully, you’ll firstly need to get the appropriate tools and materials for the job in place. The tools you’ll need to have includes a trowel and bucket trowel, plasterer’s float, corner trowel, hawk board, two buckets, mixing stick or a paddle, adequate plaster, PVA , dust sheets, clean water, sandpaper, stilts or step ladder as well as a dust mask.

✓ Prepare the wall. You’d have to make sure that you lay down a dust sheet so as to protect your floor and also gather any possible spillage or debris of plaster, before you start working on the walls. Get rid of all the dirt, dust and debris as this is very important for the success of your project if you’re going to be plastering on a worn out and old wall. Also, cover the holes and cracks in the walls with a screen tape

✓ Apply PVA to the wall. This will help ensure the layer you’re using will not dry out at the same time.

✓ Mix the paster. Mix the plaster according to the instructions given in the manufacturer’s manual.

✓ Apply the plaster onto the wall. Upon cleaning of the walls and successful mixture of the plaster, the next step is to apply the mixture to the wall using the hawk board, trowels and a floating tool.

✓ Skim and smooth. After the the first coat has dried after waiting for about 30 minutes, the next step will be to wipe out the bumps and lumps using a trowel to smooth over the surface. Once this is done you can then scrape the wall with a devilling float.

✓ Apply the second coat of plaster

✓ Apply the finishing touches. This includes polishing your work by adding some water to the surface with a spray gun and using the trowel to further smoothen out the surface.

✓ Painting and wallpapering.

Plastering is suitable to cover most Artex. If it’s shallow Artex, it may be covered by skimming plaster on top. If the pattern of the Artex is too deep, you may need to use plasterboard to cover it or if you want to remove it entirely, you will need to use a wallpaper steamer.

If you’re looking to plaster your ceiling, one of the most essential parts of the process is cutting the plasterboard. Once you’re able to master this skill, the rest of the plastering is quite easy. This is a task that can be done by any competent DIYer but with a little bit of patience and confidence. If you lack any of these attributes, we’d strongly recommend you call in a reliable professional who can guarantee the best results for help. In this guide, we’re going to take you through the plasterboard ceiling cutting process. Let’s take a look!

To cut plasterboard ceiling, you don’t need any expensive tool which is usually not the case when it comes to carpentry. If you won’t be cutting a lot of plasterboard, all you really need would be just an old handsaw or plasterboard one, a Stanley knife as well as a straight edge. However, if you’ll be cutting lots of plasterboards, you’ll require the following to make your task a lot easier:

✓ An old handsaw

✓ A Stanley knife and many spare blades

✓ A straight edge like a long spirit level

✓ A surform

✓ A battery drill and oh2 screwdriver bits, with specific plasterboard screws.

To cut plasterboard to length, you’ll have to first score a line on the face side of the board with a straight edge and Stanley knife. Once done, simply lift the sheet off the ground and snap it along the score line. Then, you can run your knife down the other side of the board , cutting the back of the plasterboard backing sheet. Upon completion, your plasterboard is now ready to be fitted on your ceiling.

How Much Does Plastering Cost?

If your existing interior or exterior plaster is starting to show signs of needing to be refreshed or the painting never seems to last, then it’s probably time to have your plaster renewed to breathe in a new lease of life to your decorating efforts.

So if you’re giving wall plastering a thought, there’s a need to have a rough estimate of the cost a professional is likely to charge so you can set a budget and start planning. However a direct answer can not be provided for this question as there are so many factors that a professional will put into considering before coming up with a quote that’s unique to your specific requirements.

A lot of plasterers will come up with a quote for the job using the number of square metres of wall space that’s going to be covered. This is due to the number of plasterboards as well as the other materials that the plasterer will need to purchase, how long the work will take and also the labour that’ll be involved in completing the project.

Another popular influencing factor that several plasterers use is the size of the room to be plastered. This is the main reason why you’re more likely to find the prices in small, medium as well as large rooms. Therefore, in order to have a more accurate estimate of the cost of your plastering project, you’d have to call in a qualified professional to have a look at the job at hand. Generally, to re-plaster a small room will cost within the range of £350 to £550, a medium room will cost within the range of £400 to £600 and a large room, between £550 to £700.

The fact is several buildings contain artex as well as other textured coating on walls and ceilings which are all likely to contain asbestos. However, artex itself is not the main threat here but the potentially deadly harmful fibres that’s contained in it. In this post, we’re going to look at whether or not artex truly contains the deadly abestos.

The short and simply answer to this question is yes, artex can definitely contain asbestos, however not all artex will contain asbestos. The main reason asbestos was a popular construction material is because it was not only cheap and strong but also because it was very durable and long lasting. It was used in numerous construction materials ( which includes artex ) before it was finally banned in the year 1999. unfortunately during the time when artex was very popular in the 60’s, 70’s as well as 80’s, asbestos was still very much in use during the period. And as a result, a lot of the artex incorporated during that period will contain the deadly asbestos fibres. However, this does not only apply to artex, but also other textured coatings containing asbestos were incorporated in construction until 1999 when asbestos was formerly banned in the UK. These asbestos containing materials are often used on walls as well as ceilings of residential properties.

Unfortunately, it’s not possible to know an asbestos containing artex just by looking at it. In order to determine whether or not an artex contains the deadly asbestos fibres, it’ll have to be sampled and tested in a laboratory. What’s more? While several artex contains asbestos, asbestos free artex was available from the 1970s. However, since it’s impossible to determine using the naked eye, all artex installed before the ban will be assumed to contain asbestos.

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.