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How To Plaster A Ceiling

Generally, plastering is a very tricky and time consuming job which usually require lots of efforts and practice to get right - with that in mind it gets even a lot trickier when it comes to ceiling plastering.

However, when you’re able to acquire the right know-how as well as tools, ceiling plastering can be completed by any confident DIYer enthusiast without the need to call in a professional. However, if you lack the needed confidence to pull off this task, then we’d recommend you get in touch with a trustworthy professional who can guarantee the best results for help. In this guide, we’ll take you through the ceiling plastering process.

You’ll need the following materials to get started: plaster, mixing bucket and paddle, plasterer’s float, plasterer’s towel, bucket trowel, protective gear, bucket of clean water and wide brush.

✓ Prepare the area. When it comes to plastering a ceiling it’s almost unavoidable to leave a mess around and no matter how you do it, your plaster will drop on the floor. Therefore you have put drop sheets on the floor, cover the furniture and put thing you don’t want to get dirty out of the way.

✓ Prepare the ceiling to be plastered. Sand down the uneven patches on the ceiling. Once done, wash the ceiling with a sponge and warm soapy water while also removing all cobwebs as well. Leave the surface to dry once completed.

✓ Mix the plaster or buy a premix plaster. To mix the plaster, simply use equal parts of plaster and water for mixing the plaster,

✓ Plaster the ceiling. Apply a little quantity of plaster to the edge of your trowel and try to spread it in rows to do the job without much hassle. Ensure that the thickness of the coat is thin and even throughout the application. The rough edge of the trowel should be used for the spreading as it’ll help you create scrapes or scratches in the plaster.

✓ Sand the surface

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.

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.

If your artex ceiling is looking tired or you just fancy a change, you can try plastering over your artex. You have two options when it comes to plastering over your artex: plasterboard or skimming.

Covering your ceiling with plasterboard is a good option if you suspect the artex may contain asbestos. If done carefully, it doesn’t involve disturbing the artex, reducing the risk of asbestos exposure.

You also have the option to skim over your ceiling. The first steps to this involve removing loose and flaking parts, cutting off stipples and sanding your ceiling down. So, if there’s a chance your artex ceiling may contain asbestos, this isn’t the right solution for you. However, if you’re sure there’s no asbestos in your ceiling, then sanding down and skimming over your ceiling can be a great way to create an attractive result.

It’s worth noting that both putting up plasterboard and skimming plaster can be difficult jobs. Although possible to DIY, you’re likely to get much better results if you hire a professional.

Can You Plaster Over WallPaper?

If you have wallpaper installed on your wall surface and you’re considering plastering the wall, when you put into consideration the stress involved in removing a wallpaper you may want to consider plastering directly over the wallpaper. This is quite understandable as removing a wallpaper can be quite time consuming and tedious, but plastering directly over wallpaper is a mistake that should never be made. Plastering over wallpaper is in no way a viable option due to the fact that it can only turn out disastrous after a couple of weeks or even days in some cases as the plaster will crack and crumble. As a result, you’ll have to firstly scrape off the wallpaper in order to assist the plaster get to be firmly secured to the wall behind.

When you plaster over a wallpaper, this will make the wallpaper wet and it’ll absorb the moisture. And once the plaster does not have moisture, the only result is for it to crack and start to crumble. Hence, plaster and wallpaper is never a good combination.

Asides from cracking and crumbling, anther issue is that the wallpaper will bubble. You can actually key the wallpaper with the help of a knife and it might look secured for some time, however it’ll eventually crumble and you’d have to scrape off the plaster complete to start all over again. The wallpaper will bubble as the plaster can’t be keyed into a wallpaper and the wallpaper will only work as a barrier between the plaster and the wall.

Overall, plaster always needs to slowly dry off as well as a good and proper surface to grip to. No matter the amount of PVA mix you spread on the wallpaper, it will always remain a barrier. So you’d have to remove the wallpaper completely to get a great result.

It’s possible to paint your artex ceiling if you want to smarten it up or make it a different colour.

If it’s never been painted before, you’ll need to paint it with a PVA-based solution or water-thinned paint layer to start with. You may want to scrape or sand off any loose or peeling patches beforehand, but only do this if you’re sure that the artex doesn’t contain any asbestos.

Once you’ve done this, follow with two coats of your paint of choice – ideally an emulsion. If your artex ceiling has been painted before then you can paint directly without priming. However, if you’re painting over a particularly bold colour with a lighter one, you might want apply a layer of white paint first.

Installing a plasterboard to a ceiling is not the easiest of tasks, and even though it can be done by one person, it’s usually a lot easier when done by two people. If you’re an experienced DIYer, this task becomes a lot easier to undertake, with both confidence and patience needed to ensure a successful outcome. If you lack these essential 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 processes involved to plasterboard your ceiling. Let’s take a look!

✓ Take a measurement of your ceiling. Knowing the length and width of your room is crucial here. You have nothing to worry about if it’s not a perfect square as that’ll only mean more cutting.

✓ Make the necessary plasterboard cuts. Cut the plasterboard sheet with a utility knife in accordance to ceiling space measured.

✓ Remove existing plaster. Once done, examine the trusses and beams to ensure they’re still in a great condition before you proceed. Also, make sure there’s no loose plaster that can compromise your new installation.

✓ Apply construction adhesive. For a better fit, you’d have to apply adhesive along the beams while also avoiding the edges as this could affect your screw placement.

✓ Start in a level corner. You have to start the installation from the most level corner.

✓ Work along the outside edges. Secure it using a screw along the outside edge. This will make your plasterboard held to your ceiling perfectly. It won’t bend or break as your proceed with the installation.

✓ Complete the installation. Install the plasterboard on your entire ceiling and complete the installation by taping the seams and plastering for a smooth surface.

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.