How Do You Attach A Lath To A Concrete Wall?
How Do You Attach A Lath To A Concrete Wall?
Metal lath offers a mounting platform for materials that are too heavy to place otherwise, such as stucco or stone veneers, on concrete walls. Because the materials you intend to connect to the lath are so heavy, you must fasten it firmly and without movement away from the wall’s surface.
Concrete nails can securely fasten the lath to the concrete without destroying it.
Step 1
Repair any moisture-related issues on the wall before installing the lath. Then, rinse the surface with clean water after washing it with a pH-neutral cleanser.
Allow the wall to air dry for 24 hours before proceeding, or pat it dry with a towel and allow two hours for the drying process to finish.
Step 2
Sand the wall in tiny circles with medium-grit sandpaper to roughen any paint on the surface. Painted surfaces can interfere with the adhesion of adhesives, plaster, or cement applied to the mesh after it has been mounted.
The sandpaper eliminates the finish causing the interference and generates a texture that allows the materials to cling to the painted surface more easily. Wipe away any sanding residue with a clean, dry cloth.
Step 3
Using a tape measure, measure the concrete wall and cut the lath to fit the surface area with a pair of tin snips.
When cutting the lath, use leather gloves to protect your hands. Many surfaces necessitate the use of more than one mesh sheet.
Allow for overlapping edges when measuring and cutting the sheets for placement if you use many mesh pieces to cover the area.
When cutting the lath, allow for a 6-inch overlap where two pieces meet with a vertical seam and a 2-inch overlap where they meet with a horizontal seam.
Step 4
Place the lath against the wall, diamonds generated by stretching the mesh pointing upward. Use 7/8-inch concrete nails with a washer over the nail shaft to secure the mesh strands.
Using a hammer, drive the nails through the mesh and into the concrete wall. Space the nails one nail per 6 inches in staggered rows for optimal results. To keep the margins of the lath sheets from curling upward when covering the lath, drive the nails into the overlapping edges.
Step 5
Bend the mesh around wall corners if the surface has to continue onto neighbouring walls. Make sure to extend the sheet at least 6 inches after rounding the corner, using the normal.
How Do You Break A Concrete Wall Without Noise?
Dexpan non-explosive demolition agent/expansive grout is an excellent alternative to jackhammers or blasting, particularly in locations where noise, dust, vibration, or safety are issues.
Dexpan is an excellent choice for projects with restricted spaces, difficult-to-access regions that exclude the use of heavy equipment, or where blasting or explosives are not a feasible alternative owing to noise, dust, permission, licensing, or safety concerns.
Dexpan is a powder that, when combined with water and put into pre-drilled holes, provides an amazing 18,000 PSI expansion force capable of safely and cost-effectively breaking the toughest concrete or reinforced concrete with no noise, vibration, or dust.
How Do You Remove Plaster From A Concrete Wall?
Plaster is a popular choice for wall coverings because it is simple to apply, resilient, and has a smooth texture that is easy to paint or paper.
However, because of the hardness of plaster, once put to a surface and allowed to set, it may be extremely difficult to remove. Plaster removal from concrete block walls is thus an exercise in scraping, dissolving, and, most importantly, patience.
Step 1
Firmly tap the plaster with a hammer to shatter the surface. This will cause the plaster to fracture and peel away. Using a paint scraper or other wide, flat implement, scrape away as much of the damaged plaster as possible.
Step 2
Put on your protective gloves. Soak an old cloth in muriatic acid until it is completely saturated. Press the cloth against the plaster remains on the wall.
Wrap the fabric with a layer of plastic, such as that used to wrap sandwiches. Tape the plastic to the wall tightly to keep the moisture and the acid from evaporating.
Step 3
Wait for 24 hours. Peel the plastic and cloth away from the wall. Using a paint scraper, scrape away the dissolved or partially disintegrated plaster.
If any portions of plaster remain, saturate the area with extra muriatic acid, dampen the cloth, and reattach it to the wall. Wait another 24 hours before removing the plaster again.
If big chunks of plaster refuse to disintegrate in the acid, forcefully tap them with the hammer before scraping them away again.
The acid’s effects can sometimes weaken the plaster, allowing the hammer to break it apart sufficiently to scrape away.
How Do You Sand A Rough Concrete Wall?
Smoothing a concrete wall is a multi-step operation. First, crush down any large bits of concrete left over from the forms. I use a small angle grinder and a masonry blade with diamond grit.
Cut and grind down any chunks or bits of concrete that protrude from the surface using the blade. Wear a mask and goggles because grinding concrete creates a lot of dust and spits out concrete pieces.
You may begin sanding the concrete wall once the surface is clear of projecting fragments and reasonably level. Begin by smoothing the surface using a concrete surface grinder.
Then, sand the surface using a belt or revolving sander with rough-grain sandpaper. Wet the wall to decrease dust and heat buildup. As you continue, use finer grit sandpaper to get a smoother surface.
With adequate time and effort, you may sand a concrete wall very soft and smooth.
