Issue link: http://digital.turn-page.com/i/89623
Techniques for Craftsmen Stucco Coating E-PT-3 C raftsman Operating Procedures (COPs), developed by the PDCA Craftsmanship Forum, establish a benchmark for how painting is done at a craftsman level, so that individual painting companies can customize them for their own brand of craftsmanship. From job site setup to painting trim and cleanup and closeout, COPs constitute a ready-made tool to help you standardize craftsmanship practices within your painting company. The COPs also help train employees in consistently deliver- ing the quality that you promise your clients. Each month APC will highlight a new COP. This month: stucco coating E-PT-3: • Adhesion tests can be helpful to deter- mine the level of coating removal needed. • Tapping the surface may produce a hollow sound, which may indicate poor coating adhesion. • Local power companies may provide additional protective covering around above-ground electrical service. • Work from a comfortable height above your head down to the top of the ladder or down to waist height if on scaffolding. • Work in a section that is the width of your arm span while centered on the ladder. • Work ahead of the sun's movement in very warm, hot climates. • If a surface is hot to the touch, it may be too hot to paint. • A sealer can help with adhesion and moisture resistance and increase square footage per gallon of primer or paint. • Use a nap roller between ¾ inch and 1 ½ inches when coating stucco. • There are specialty tools available that integrate the roller with the airless sprayer tip. 18 • October 2012 APC • A long extension pole used from the ground may increase productivity when compared with working from a ladder. • Wherever possible, remove the dirt from the foundation below grade and coat the stucco to add additional water resistance. A power washer with a zero-degree rotating nozzle may be effective for that. • Be sure that the actual pH level is lower than the maximum acceptable level for the coating to be used. That informa- tion typically can be found on product data sheets from the manufacturer. • Oil-based primers and paints are less tolerant of higher pH surfaces than acrylic coatings and thereby more sus- ceptible to alkalinity-related problems. • A pH level under 10 is generally accept- able for water-based coatings; however, some coatings are rated for application to a pH level up to 13. APC A series of 20 Residential Interior COPs and a series of 25 Residential Exterior COPs can be purchased from PDCA's online store. Visit pdca.org for more information.