Decorative wallboards are panels that can be affixed directly to wall studs or can be used as the outer layer over gypsum boards. They can also be used for demountable partitioning systems. One of the most pleasing attributes is that decorative wallboards, being prefinished, mean that it’s not necessary to build the wall and apply a wall covering product.
For the wallboard joints at the inside corners, you will use a corner trowel tool; there is no need for a mud pan. Just dip the corner trowel right into the joint compound bucket and coat the corner joint well.
Step 1) Start at the top of the wall and press the compound into the corner, holding the blade at a low angle to the wall. Work your way down to about the center, then start at the bottom and work your way up. Working this way lets you avoid ending up with a big glob of compound on the floor. You want to get the compound pressed into the nailhead dimples and the gap between the adjacent drywall sheets.
Begin by filling your compound pan half full of mud (joint compound). Using your 6 inch joint knife held at a low angle to the wall, spread mud over the fastener rows such that the mud is compressed into the nailhead dimples.
Now scrape the extra compound from the surface of the drywall, with a stroke perpendicular to the direction you used to apply it. The knife blade should be held at about 45 degrees angle to the wall.
After this step is complete, you want to be left with nothing on the wallboard except the mud in the nail dimples, which should be flush with the rest of the wallboard surface.
After hanging your drywall, you’re ready for the most critical part of the drywall installation process,- taping and finishing the joints between wallboards, also known as mudding. Although it can be tedious and frustrating, it affects the final appearance of the job greatly, so you need to take your time and do it right.
Finishing drywall has three steps to it
- 1) Filler Coat: Applying a joint compound filler coat to joints and nailheads. This is reinforced with paper joint tape. When dry, this is sanded down.
2) Second Coat: The joints are coated and sanded a second time 24 hours after the first coat.
When you are installing drywall in a room, always start with the ceiling. The reason for this is that the drywall sheets on the sidewalls will be supporting the edges of the ceiling drywall sheets, so it is much easier to install the ceiling first. The ceiling is also usually the hardest area to cover, and this way you get the worst part over with right away.
Step One: is to choose which way to place the long dimension of the wallboards. It is recommended to run the length of the sheet perpendicular to the ceiling joists. It will reduce the chance of joint cracks or nail pops appearing, as well as give maximum structural strength to the drywall installation.