After the installation of plasterboards, it will be necessary to hide the joints and the screw holes. We need to obtain a clean and smooth surface in order to make the final finishing.
In today’s article, we will explain how to do the jointing of gypsum boards so you can enjoy a flawless finishing.
Drywall Jointing Surface Materials
First of all, before jointing, we need to decide if we are going to use gypsum powder or joint compound. Both of them are used for filling joint gaps of drywall and finishing surface. However, given that joint compound is ready mix, you will have lots of benefits compared to gypsum powder.
At Board & Wall Co., we propose two types of compounds, namely:
Provide faster and superior performance in joint closure
Useful for repairing cracks and holes in existing plasterboard and plaster surfaces
It takes 6 to 12 hours to dry, depending on the humidity and temperature
Higher resistance to fire
Jointing Gypsum Board in 7 Easy Steps
Gypsum Board Jointing
Once installation of gypsum board is complete, we can start jointing stage. Jointing gypsum boards is an essential step. In fact, a quality jointing will avoid cracks and guarantee solidity of the wall. Similarly, a good jointing will determine compatibility of the wall with all types of finishing (paint, wallpaper or tile).
Firstly, by using a broad knife, take a coat of joint compound.
Step 2: Filling of The Hollows
Secondly, begin by filling in the tapered edges vertically. Make sure to apply the compound well in the hollows.
Step 3: Bonding and Tightening of Paper Tape
Plasterboards Taper Edge
Thirdly, apply the paper tape by centering it in the middle of the two plasterboards. In other words, where the tapered edges meet. Gently tighten the paper tape by tilting the broad knife.
Regarding the application of the paper tape, make sure that the marking side is applied on the joint compound.
Step 4: Jointing Incoming Edges
Fourthly, for the incoming edges, perform the same steps. Meaning, apply the joint compound on both sides of the inside corner. In this case, fold the paper tape in half then affix it to the inside corner. Then tighten the strip using the broad knife.
Step 5: Jointing Fasteners Head
Fifthly, as soon as you have finished, make sure to joint the screw heads with the excess of joint compound.
Step 6: Drying
Now, let the joint compound dry completely for this first phase.
Step 7: Covering of Paper Tape
Finishing of Drywall Work
Finally, use a plaster towel and apply a second and thin coat of compound. Wait until dry. When the second coat is completely dry, scrape or sand any compound buildup along the joint, so you can have a smooth surface. Afterwards add a third and final coat of joint compound by blending the edges. Once thoroughly dry, sand the joint lightly to a smooth finish.
Board & Wall Co. is a drywall materials supplier company based in Istanbul, Turkey. We are currently exporting to 30 countries in Europe, Africa, Middle East, The Caribbean.