The house is under re cladding from plastering exterior to weather board exterior; We are contracted for all interior painting works. There will be multiple damaged parts fix up before the interior painting works start, plus the windows are all to be replaced. 1/3 of the jobs could be wall paper stripping and fixing plastering. After those things the interior wall will be properly partly plastered, sanded and primed.
Before the painting: covering, masking, sanding
The previous owner used low quality paint and many areas are DIY level of painting without much preparation. There are also large cracks and splits. The damage is large we use joint tape to give support to the drying drywall compound. The tape does this by distributing the weight of the compound over a larger area, reducing the likelihood that the dried compound will split along the original crack. After filling the wall’s wound, we press a piece of tape into the wet compound, directly over the crack. We make sure that no air bubbles are caught under the tape.
Damages and Holes in Gib board Drywall
To repair these areas we dig out all loose gib pieces with a molding scraper and a putty knife. Plastering compound dries in only 30 minutes. We then smooth it for cracks and dents, and allow it to dry. Then we apply second and third coats, keeping the string taut as you press new plaster into the hole. Plastering compound is harder to hand sand than drywall compound, so we try to smooth the final coat.
Big holes are filled with a piece of gib. Water damage also may necessitate replacing a section of soggy wall. We cut a patch of gib, making it larger than the hole. We use a straight edge to keep lines straight.
We place this patch over the hole. It covers the hole completely. With a pencil, we trace the perimeter of the patch on the wall. The pencil line is away from the hole at all points, then to cut out the damaged area. The hole is cut larger on our side. This keeps the wall patch from falling through the wall into inside.
Once the beveled hole were cut out of the wall, we sculpt the edge of the patch to fit the hole. It was perfectly flush with the wall. The error will show through the soon-to-come coat of paint, a sure sign that many other painters tried to fix the wall. By hand sanding at sticky points, we get a piece that’s too large to fit like a glove. Then we compound the joints for cracks and dents.
We move the furniture out of the room as much as possible, cover kitchen with drop cloths and plastic sheets. We cover the floor because we don’t want to scrub any paint stains later on. Canvas drop cloths, overlapped a half foot on the edges. The drop cloth easily sustains any splashes and accidental spills. We use masking tape to cover trim, baseboards, electrical panels and anything that cannot be removed from the surface. See this photo below:
- Scrub It Down: we clean all surfaces to be painted. Oil, dirty hand marks and greasy stains will hinder the paint’s adhesion to the surface.
- Smooth It Out: we smooth out all surfaces. A bad painting surface will result in a bad paint job. “Bad” includes flaking, peeling, cracking, and anything less than a smooth, even surface. This means you have to: caulk any seams, gaps and cracks; scrape off any chalky paint and level any unevenness with sandpaper; and patch up any holes with spackling compound.
The previous owner probably ended up spending the same amount of money with poor quality and many tools you won’t use any more in the end, not to say the waste of your time and the hardness, the failing of failure instead of accomplishment.
We think priming is essential in three cases: the surface has never been painted before, the surface smells due to pets or smoking, the paint currently on it is prone to heavy flaking, peeling or cracking. Every surface has its own kind of primer, let the primer dry before proceeding. Two coats of paint can NOT be substituted for priming, but since primer is thicker and has better adhesion, one coat of primer and one coat of paint is much preferable.
The job was completed in 2 weeks with two painters Monday to Friday and one extra painter on weekends.