How much does dry construction cost? Drywall services are a type of dry construction technique, which varies in type. Building a partition wall is quite simple and quick, but if you want above-standard thickness or soundproofing, the price will go up. A regular partition wall of 12mm thickness is priced between NGN8,000 and NGN10,500/board measuring 3m length and 1.2m width, and a double one which is most likely customized for special construction purposes are priced higher. You can get yourself a Knauf suspended ceiling for about NGN4,000/m2.
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Installing drywall is a quick and efficient building technique since modifications are possible even before hanging it. However, you will need to follow a carefully designed plan and work schedule. The contractor will be able to advise you on most things, but we’ve prepared some tips on this topic.
Since drywalling always goes hand in hand with jobs like installing services, skimming, painting, and wallpapering, there’ll need to be some coordination between the trades throughout the entirety of the project.
It’s always a good idea to have a plan. With your architect, you can make drawings and sketches of the attic, loft, or apartment. These can provide the basis for a list of all the necessary jobs and materials, a so-called ‘bill of quantities’. This will also make it easier for potential contractors to draw up their quotes and you’ll be able to compare them item by item using this information. Having a good plan always means you’ll avoid problems and unwelcome surprises in the long run.
It’s useful to know what state the property is in because this is what will determine the type of jobs that will need doing and in what order. For example, sound is transmitted through the drywall framework and can be quite loud. To avoid this, when laying screed, it’s vital that the walls are placed directly onto the concrete slab but with a layer of rubber under the profiles that will form the frame. It is also important that the drywall panels are at least 10 mm off the floor.
Of course, partition walls can also be installed on parquet flooring or tiled floors, but care must be taken not to damage existing pipework and cables.
Ventilation and sewage pipes are usually large in diameter (up to 20 cm). However, the size of control packs and manifolds for underfloor heating is such that they can’t be ignored. Therefore, when determining the thickness of a partition wall, care must be taken to make sure that all the cables and pipes will fit inside; if not, these will have to be covered up at a later date with masking, which will ruin the appearance of the new space. This is another case where good planning will save you a lot of headaches.
Drywalling is a relatively simple job and therefore many contractors will be happy to take it on. Due to how quick it is, many even decide to work alone and recently more and more painters and decorators offer drywalling services, too. However, the fact that there are so many of them on the market does not necessarily mean that they all do a good job. We advise you only contact those contractors who actually specialize in drywalling, have references to prove this, and can show you their previous work.
The right time to look for a contractor depends on the condition of your property and the scope of the planned works. If you only need to partition off a few square metres, you can arrange for the contractor to contact you when they have a free slot. If you’re after someone to hang drywall throughout your whole apartment, you might find yourself beating off potential contractors with a stick! You’ll find that they’re able to start the job the very same week.
During the hot seasons, at the height of the building season, contractors are generally very busy and drywall prices are higher. For this reason, we recommend you schedule the work for the very beginning or end of the summer. Drywalling a house of about 150 m2 can take up to three weeks.
Since it’s so simple and flexible, drywall construction, i.e., plasterboard fixed to a frame, is used in a wide variety of projects, whether it be a new build or renovating or adapting an older property.
Drywall is especially suitable for the construction of partition walls and ceilings in prefab buildings. It is excellent for damp remediation and wall linings for any type of renovation project since it does not affect the supporting structure and no water is used (unlike classic masonry).
Plasterboard is the basis of drywall construction. The panels themselves are made like a sandwich - plaster lined on both sides with paper; they are very easy to cut and screw. Their standard dimensions are 200x125 cm and 12.5 mm thick.
There are several types of boards depending on the manufacturer, but ‘regular’, grey boards are most commonly used and are suitable for rooms without moisture. Green plasterboard is waterproof and used for bathrooms and roofing. Fire-resistant plasterboard is most often installed in boiler rooms, while 25 mm thick boards are also available - these contain additional fibres of different materials to make them firmer.
The framework is the basis of any drywall construction. In the past, wood was used as a stud, which had certain advantages since the wooden beams were more solid and were better at dampening the sound. On the other hand, aluminium profiles are quicker to cut and join together, are much lighter, and are cheaper, so most drywallers now prefer metal stud walls. They come in different sizes and can be used for any purpose.
Partition walls made of plasterboard are an excellent solution for new builds or when renovating. Depending on what you need, there are several different installation methods, different types of framework, with one or more layers of plasterboard.
The thinnest partition walls are about 7.5 cm, while those walls which contain pipes and cables are between 15 and 20 cm; usually people go for thicker walls because they also fit soil pipes that are 125 mm in diameter. It is advisable to insulate these partition walls, preferably with soft rockwool. For partition walls that will have to carry a certain load, e.g. kitchen cabinets, a double layer of plasterboard is recommended to make the wall stronger.
Closing up a loft space or levelling a ceiling can almost always be achieved using a ‘suspended ceiling’. Drywall is screwed onto an aluminium frame, which must be level, and, just like that, you have a new ceiling.
A drywall ceiling is a quick, easy, and very effective way to hide pipework for ventilation, electricity, and plumbing.
A suspended ceiling is also ideal for stylish renovations as it can accommodate brackets for lighting (LED lamps or strips), blinds, or curtains.
During renovation work, uneven and damp walls are often encountered. In these cases, cladding the wall with plasterboard screwed to a frame is an excellent solution. It is often unfeasible to move installations even with the help of chasing, i.e., cutting a groove into the wall, because the wall is made of concrete or the house is a prefab. Plasterboard is screwed directly onto the wall when, for example, you want to repair a crumbling plastered wall.
Although drywall construction is simple and quick, we don’t recommend you take the job on yourself; it’s always good to use a professional for such matters. In order for you to have a better understanding of the whole process, below we’ve outlined the various steps, which will involve a variety of trades.
The first step is constructing the frame for the partition walls. This needs to be made and placed precisely, sticking exactly to the design plan. First, the profiles are screwed into the ceiling and the side walls to make the outer part of the frame. In doing so, insulating tape is stuck to the floor, which serves to dampen sound. If you know where any pipes and cables are, be sure to tell the people carrying out the work so as to avoid any damage.
Then the horizontal and vertical profiles are screwed into place at certain points within this outer frame. The plasterboard will be screwed onto these profiles. The contactor will make jambs from the profiles around the windows and prepare frames for any door openings or cassettes for sliding doors.
Once the framework for the partition walls has been put up, the frame for the ceiling can be screwed directly into it. Then the profiles can be checked, levelled, and fixed securely.
After the frame has been built and secured, a plumber can run water and waste pipes, or install a built-in cistern. At this stage, an electrician can run cables and wires for electrical installations, too. It’s a good idea to give careful thought to where you want to put the sockets and switches as moving them later on will entail additional costs.
Now it’s time to screw the plasterboard onto the frame. Initially, only one side of the wall is closed up so the electrician can fit socket back boxes and switches in the intended places. When fitted, the other side of the wall is closed up, too. At this time, the electrician and the drywaller are working in tandem.
When the partition walls have been boarded up, the ceiling is then boarded over.
The drywaller will fix aluminium profiles on the corners and edges to protect them from damage.
The joins between the plasterboard are always a weak spot as the entire structure moves slightly. In order to avoid cracking, these joints must be taped. Scrim tape is first stuck to the boards, down the middle of the join. Then a jointing compound is applied over the mesh. When this has dried, another coat is applied. Once complete, the surface should be completely flat; ensure that screws sit below the surface of the plasterboard and then cover each one with the jointing compound. The corner profiles should also be plastered over so they are completely invisible.
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