HOW TO PAINT A ROOM... DURING THE JOB
ENSURE A GOOD BASE BEFORE PAINTING
Any house painter will tell you that having a clean, dry and smooth surface to work with is essential to creating a quality finish. The only way to ensure a good base for a project is to repair all blemishes found on the surface. These may come in the form of cracks, holes, gouges and so on, but the procedure to repair these rarely deviates.
Begin by smoothing the area. Using a good scraper, scrape away any loose material from the wall and lightly sand the area with a course grit sandpaper or sanding block in order for it to properly accept the repair. Using a trowel, spread a small amount of drywall putty over the blemish taking care to use as little material as possible and tapering the patch toward the outside so as to blend the patch into the regular surface of the wall. Allow the patch to dry and sand lightly with a fine grain sand paper or sanding block. Repeat the procedure if necessary. It is imperative that you give the patch proper time to dry and cure. That time will vary depending on the products used, the environment and the size of the repair. The recommended drying time is normally found on the product's packaging.
APPLY PRIMER BEFORE PAINTING
Amateur house painters will usually be performing a ‘re-paint’. That is to say, applying a fresh coat to a room or wall that has previously been finished. In these cases it is not necessary to apply a primer to the entire surface. Instead, in this instance, our you should focus on applying primer or sealant to areas that have been repaired or may be discoloured due to a stain.
If planning to used an oil based product, then oil based primer is required and conversely, when using water latex, then water based primer will be needed. We'll explore the differences later.
To avoid any problems with the product, agitate the primer until it is thoroughly mixed prior to application.
A single coat of primer applied with a regular brush or roller will usually suffice. Allow time for it to dry completely before applying paint. Again the recommended drying time can often be found on the packaging but if unsure, painters usually test the surface by lightly brushing the fresh area with a clean finger. If the finger is absent of primer, it is then safe to proceed to the next step.
CHANNEL YOUR INNER PAINTER
The first step to applying paint to a room is to 'cut in'. Which simply means to carefully coat the edges of the walls where they meet the ceiling, floor, windows, doors and so on.
For best practice, set up a pouring station where you will fill smaller containers as well pans for rollers. Lay down some plastic sheeting and have some rags and water or solvent handy to quickly take care of spills and to generally keep all equipment clean.
Pour a small amount of paint into a more portable container and equip yourself with a good two-and-a-half to three inch brush. Most professionals prefer to use a brush made with natural fibers, but some good synthetic brushes are also available.
When cutting in, dip about half the length of the bristles and dab off any excess. Begin the stroke close to the edge and lean the brush in the direction of the stroke while applying soft pressure. As the bristles begin to lay down and become bladed, push the brush to abut against the joint, then do a long smooth stroke. Those who are less than confident in their ability here can use tape to edge the entire surface as to avoid staining other surfaces.
Once the room has been cut, the works can begin in earnest. Fill the reservoir portion of a pan. Saturate the roller then roll across the washboard portion to even up distribution and to remove any excess. Using long vertical strokes that overlap about half the roller length, work from one edge to the other applying as even a coat as possible.
Using this method, the average re-paint will require only one coat as long as the new colour somewhat resembles the original and there are no stains to cover.
If unsure whether a particular job will require additional coats or not, it is always best practice to apply at least a second.