Drywall is a waterless construction method using drywall and galvanized steel profiles.
About two decades ago, he was a notable unknown in Brazilian construction. However, this reality has changed and the drywall It has the trust of architectural professionals and residents who adopt the effectiveness and safety of systems for the execution of partition walls for internal environments, ceilings and decorative solutions, such as customized shelves.
Due to its ease of installation and also of modification, after the work, the architect Carina From the Blacksmithat the head of the office that bears his name, he is able drywall for many reasons. Among them, highlights the execution speed as one of the advantages, especially when the resident has a short period of time to acclimate.
“I’ve worked in situations where the resident buys the property and needs to move very quickly. With the drywall system, we speed up the job, saving on execution time.”
What is plasterboard and what is it for?
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Literally, drywall means ” drywall”, in English. This is because, unlike the traditional masonry construction method, does not require the use of water or mortar, which translates into clean work that, in general, produces only 5% waste. “To have a basis for comparison, masonry generates 20% more,” comments João Alvarenga, technical coordinator of the manufacturer Knauf from Brazil. However, it cannot have a structural function or be applied to facades.
Basically, the system consists of galvanized steel profiles – guides placed on the floor and ceiling and vertical posts screwed to them – where plasterboard sheets wrapped in cardboard, the so-called plasterboards, are attached.
The core of this set can be hollow, forming an air mattress between the sheets, or padded with materials that improve thermal and acoustic insulation.
The plasterboard sheets are joined together with screws and your own hardware and, to camouflage the joints, micro-perforated paper tapes are applied to the joints and a layer of specific mass for plasterboard is applied over the entire surface. Then sand and choose your finish.
How is the work with drywall
According to the architect, just like an orchestra, the choice to use plasterboard has an impact on the entire layout of the work. Instead of a brick and mortar job for laying, screwdrivers fixing the galvanized steel elementsforming a structure for the closure with plasterboards.
“Produced in an industrialized way, they offer resistance to shocks and, contrary to what many may still think, they are not fragile and have excellent thermo-acoustic performance certified by the manufacturers”, teaches the architect.
To carry out the projects, the professional must determine the desired purpose and follow a technical manual that indicates the specifications of the galvanized steel, such as its width, as well as the distance between them. “In a double or higher ceiling height, we have to reinforce the structure for fixing the slabs,” he exemplifies.
Once erected, the wall does not require the adoption of times so common in masonry: it is not necessary to cure the mortar for plastering, nor for levelling. Everything is very agile and the next step is just to finish the seams between the sheets and move on to the finishing stage.
Difference between drywall and masonry
<img class="size-large wp-image-379294" src="https://casa.abril.com.br/wp-content/uploads/2021/09/170119-ap-antonio-pedro-20-copy.png?w=700" border="0" alt="Sala com parede de drywall" title="Apartamento carioca Estúdio Chão" width="700" height="467" data-restrict="false" data-portal-copyright="Andre Nazareth" data-image-caption="Painéis com venezianas de freijó (1,35 x2,60 m) se deslocam e, quando abertos, ficam
built into a double plasterboard partition. white countertop surface
Marmoglass crystallized glass. The closet
the top has a matt lacquered finish, execution
by Roberto Machado Marcenaria.
” data-image-title=”” data-image-source=”Andre Nazareth” /> The freijó shuttered panels (1.35 x 2.60m) move and, when open, are recessed in a double partition in plasterboard White worktop with Marmoglass crystallized surface The upper cabinet has a matt lacquered finish, performed by Roberto Machado Marcenaria.
In the traditional construction method, the masonry wall is erected and then ‘ripped’ by a chisel to open the space for the passage of the ducts which will receive the electrical systems and all the plumbing systems. By using plasterboard, the rhythm of the work follows in a different way: before closing the walls, the work team can already carry out the passage of the wires and pipes, according to the indications of the project.
“Besides saving time, we know exactly everything and where the plants are going. This is an advantage that I present to our customers, because in future maintenance, in the event of a leak, they will be able to open the wall exactly where the problem is,” says Carina .
When asked about the resistance for fasteners, the professional knows that the advance is also her ‘partner’ for carrying out the work. Knowing that a workbench will be installed at some point, you can anticipate the placement of wood or galvanized steel reinforcement within the wall to add to the strength the plaster itself already offers. “In the case of frames, just buy the bush indicated for the weight of the piece,” she points out.
You can install drywall in the bathroom or in wet areas
Thinking about the composition of plaster, in fact water and plaster would not be great friends. In bathrooms whose cladding was made with old plaster slabs, within an artisanal process, it is common that over time you see mold spots due to humidity.
However, the drywall industrial process offers the RU sheets – Moisture resistant –, which guarantee its performance both in bathrooms and kitchens, utility rooms and balconies. “Of course, we can’t use it in outdoor areas yet, but indoors, we use the special green-colored sheets with complete peace of mind,” reports Carina.
What are the advantages of plasterboard?
In addition to the points mentioned, plasterboard also has other advantages, such as:
- Thinner wall thickness, with gain of useful area in construction;
- Heat resistance and pest immune;
- The plasterboard sheet is lighter than other materials used in construction, reducing the weight of the sheets;
- The flexibility of drywall provides a greater variety of home floor plans, i.e. more options for interior partitions.
Source: Terra

Ben Stock is a lifestyle journalist and author at Gossipify. He writes about topics such as health, wellness, travel, food and home decor. He provides practical advice and inspiration to improve well-being, keeps readers up to date with latest lifestyle news and trends, known for his engaging writing style, in-depth analysis and unique perspectives.