When I bought my house, the previous owner had not waterproofed the walls behind the planter areas. I re-stuccoed the entire home using a Santa Barbara Finish. Within a year or so I began to notice efflorescence and a resultant spalling of the stucco surface just behind the planter areas. I knew the best fix was to waterproof the positive side of the wall. That is, the side with the dirt and moisture in it. However, as with most jobs like this, I did not want to dig out the back in the wall.
So I did the next best thing:
1. Using a 3 lb. sledge hammer and a wall scraper. I removed any material that was punky, spalling, or sounded hollow. This is the concept of: “the next coat is only as sound as the surface you are going over.”
2. I mixed up and spread Merlex Super Blockade to stop the water or moisture from coming through. I made sure to put on at least 2 coats.
3. I then used LevelX to cover the Super Blockade and also to build up those areas that had been removed. I added some Acrylex to the Levelex to ensure a good bond. In some places it took two coats to build up the material level with the existing Santa Barbara Finish that was remaining.
4. There were some areas the Santa Barbara finish was still functionally good but pitted and ugly from the damage cost by efflorescence. We rolled SuperHold on the smooth surface before applying the LevelX. Again this is to insure bond of the subsequent coat.
At this point, the wall is ready for stucco.
Stucco should go on next week…. I will send the final pics and any comments following…
On Tuesday, I walked Phase I of the Plaza San Clemente Outlet Mall project, which is using our exterior plaster system. It is coming along nicely. Brady seems very pleased how the materials are spreading and their professionalism and attention to detail continues.
Phase I of Plaza San Clemente is approx. 40,000 yards. Phase II will follow with 27,000 yards. The system implemented on the majority of the walls is Densglass fiberglass faced water resistant gypsum board screwed to the studs; 60 minute paper (WRB) is applied over the board with 3.4 metal lath installed over this to hold the first pass (scratch coat) of mud. The mud consists of factory blended and sanded Insulex fiber reinforced base coat material by Merlex. The scratch coat is field mixed using a mixer and pump to apply the material directly on the metal lath. The material is then tooled to introduce furrows typical of the scratch coat. Brown coat is applied following a two day cure time. The brown coat is tooled flat using a Plaster Rod and tooled with trowels to introduce the subtle mottling required by the scope of work. After another two day cure time and the third coat is applied. This third coat is a relatively new addition to the plaster system and is known as “Base and Mesh” or the “bed and mesh” system. It is also characterized as Crack Resistant Coat or Crack Isolation System. Merlex Basex is applied by Hawk and Trowel over the tooled brown coat and, while still wet, the mesh is embedded into the material. The 4 oz Alkali Resistant fiberglass mesh is worked into the material to create a barrier to stress. The polymer in the Basex also serves to absorb some stress as it emanates up from the natural movement of the building. As soon as the next day Merlex Santa Barbara Finish can be applied from the top down to create the early California look desired. The subtle humps and bumps are barely perceptible but are sure to add to the natural beauty and traditional look of bygone days. The architecture calls for long planes of material using no plaster stops as Control or Expansion Joints. These tend to break up the field and long stretches of wall and most feel they help in crack reduction. The further benefit to these breaks is to allow a stopping point for the labor as they tool the smooth finish on the wall. Without a stopping point it is common to get “cold joints.” These are where an area of finish dries before the next step is started. In a natural application (without paint) this is to be avoided at all costs. However, because the entire job will be painted, it is only a matter of patching these “joint” areas and sanding them out before painting.
There is a detail at the bottom of the wall where it is furred out 1 ½” to give contrast to the rest of the wall. This will be 16/20 float finish.
Super Blockade Water proof Cement Material is being applied at the local foam plant (Foam Co Products in San Diego) to stand up to rain and moisture of the large dome caps on the corners throughout the project. Each cap specifies Santa Barbara smooth Finish (Color P-7851) modified with Acrylex to properly adhere to the waterproof material.
With all this said, Phase I of the project is coming to completion soon, and is going to look great with the right team behind it. We’ll keep updating each section of the project.
- San Diego, CA (June 24-25, 2015)- MERLEX STUCCO, [manufacturing stucco, acrylic finishes, and waterproofing products since 1963 in Orange, CA], will showcase its newest products and solutions in San Diego, California at the homebuilding industry’s most anticipated west coast conference and exhibition, PCBC. As the only industry event that partners with the Leading Builders of America, PCBC 2015 will gather close to 10,000 high quality buyers representing every segment of the industry: homebuilders, developers, architects, building scientists, lenders, investors, marketers.
- From June 24-25, prominent industry leaders will gather to present the latest product, trends and innovations both on the show floor and through the high-level education program.
- Established in 1963, MERLEX STUCCO has since expanded opening two warehouse locations in Los Angeles and San Diego counties.
- Merlex Stucco will be exhibiting again this year in San Diego because “PCBC is the perfect opportunity for us to connect with top quality professionals in the residential building space,” explains Melissa Higgins, Director of Marketing, Merlex Stucco. “We’re showcasing our products to a highly qualified audience—including representation 21 of the largest publicly and privately held homebuilders in the nation. On top of that, we are building relationships to carry on throughout the year.”
- Merlex will debut a newly designed display booth along with a few new products at BOOTH #130 and invites professionals in the industry to visit us. For more information on the educational conference and schedule, visit http://www.pcbc.com
- About PCBC:
- Dedicated to advancing the art, science and business of housing, PCBC is the largest homebuilding tradeshow representing the west coast region. Launched in 1959 as a small educational conference at the Sheraton Palace Hotel in San Francisco, PCBC is now an annual two-day conference, product display and business exchange and is open to anyone professionally involved in the building industry, including builders, developers, architects, remodelers, designers, contractors, dealers/distributors and suppliers/manufacturers.