The finishing and taping of drywall after an installation or repair job is very crucial. Bumpy finishes, irregular edges and detached corners are some of the results of a carelessly done job. One of the common finishing problems is the presence of bumps on the walls which mostly happens when you move into a new home. Before you make an order for new drywall planes from your drywall supplier here are a couple of steps you use to repair the bumps from your drywall.
- Place coats on either side of the bump: The aim is to have a uniform height around the area. The new coats on either side should match the bump's height. Once done allow for drying time.
- Turn to the coat on the bump: Scrape of the previous coat to rid it off any sticking up ridges. This will also ensure the bump levels out. It is not advisable to sand the old coat so just stick to scrapping off. You can use a taping knife for knocking off and scratching any studs and ridges.
- Once done, place a coat in the middle that bridges the new coats placed at the side of the bump. Allow time for the coat to dry.
- Scrap off previous coats to remove ridging and then apply new coats on the sides and edges trying to ensure you have an even level result. You may end up with a well tapered coat that is wider than intended but the finish is way better and the bumps unnoticeable.
- Once everything is dry you will need to inspect work with a lamp and add thin coats as may be necessary. Then finally you can finish your work off with slight sanding for a smooth result.
Once your repairs are completed you can texture, prime or even paint to achieve a matching result with surrounding wall.
There are a number of drywall supplies you may need in the course of all this work.
Tools and equipment needed include; a utility knife, 10-inch drywall knife, drywall compound, sanding block with fine sandpaper and drop clothes.
Given the dust that comes with any drywalling job, it is advised to get a dust mask and safety glasses. You will also need a drop cloth or plastic paper to collect any dust drops.
While setting all this up you will need to avoid having bubbles in your paint work especially along the edges of the coats. To avoid this you need first to get a quality drywalling compound.
Aside from this ensure you have the right consistency by thinning it with some water and mixing it properly but slowly to ensure no air is trapped in the paint. Your method of applying the coats also matters.
As you proceed adding the coats go for much thinner layers covering up bubbles in the first coat. When a couple of bubbles appear in the final coat you can cut round them and lightly coat the area before the final sanding.