The Problem With Painting A Brick House

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The Problem With Painting A Brick House

As previously stated in the article that mold spores are constantly circling around in the air.

I’ve written an earlier post about some testing I did with this product. It was tested on wood in the post, but works much the same on brick and other masonry. Sandblasting old brick removes paint, yes, but it also removes the outer skin, leaving the brick exposed to the elements and susceptible to an early death. Once the bricks had cooled enough, the kiln was disassembled and the bricks were sorted. If only raw bricks were used to build the kiln, the bricks from the outermost walls were kept to be burned again in the next kiln. Brick Danger
Abrasive cleaning methods are responsible for causing a great deal of damage to historic building materials. There are alternative, less harsh means of cleaning and removing paint and stains from historic buildings. However, careful testing should precede general cleaning to assure that the method selected will not have an adverse effect on the building materials. A historic building is irreplaceable, and should be cleaned using only the «gentlest means possible» to best preserve it. Rough surfaces of abrasively cleaned wooden elements are hard to keep clean.

Soil Heaving:

Erosion and pitting of the building material by abrasive cleaning creates a greater surface area on which dirt and pollutants collect. In this sense, the building fabric «attracts» more dirt, and will require more frequent cleaning in the future. There are alternative means of removing dirt, stains and paint from historic building surfaces that can be recommended as more efficient and less destructive than abrasive techniques. The «gentlest means possible» of removing dirt from a building surface can be achieved by using a low-pressure water wash, scrubbing areas of more persistent grime with a natural bristle brush. Steam cleaning can also be used effectively to clean some historic building fabric.
If the stone has a compact and uniform composition, it should continue to weather with little additional deterioration. But some types of sandstone, marble and limestone will weather at an accelerated rate once their protective «quarry crust» or patina has been removed. Much applied architectural metal work used on historic buildings—tin, zinc, lead and copper—is often quite thin and soft, and therefore susceptible to denting and pitting. Galvanized sheet metal is especially vulnerable, as abrasive treatment would wear away the protective galvanized layer. If you do go ahead and paint your home’s outside brickwork, remember that you will be making a serious commitment. Should you change your mind, paint removal is costly and time-consuming.

How To Repair A Deteriorating Brick Wall

This makes sure that mold spores do not end up settling there while removing. Health symptoms associated with moldy brick walls generally include constant headaches, sneezing, coughing, irritation in eyes and nose, and trigger allergic reactions and asthma attacks. However, the symptoms may go towards the stronger side if you suffer from any illness or a weak immune system. Every building has a certain corner where the air circulation is just too poor to bring you any good. As previously stated in the article that mold spores are constantly circling around in the air. Thus, if the air circulation is poor it does not allow the spores to exit.
In plain language, the air circulation has to be excellent in order to let the mold spores find a way out of the area. When wall is subjected to out-of-plane or lateral loads like wind loads and earthquake loads, the strength of unreinforced masonry walls can be increased by providing ties. The design of ground beams is to span between pad foundations or piles. The need of the ground beam is to connect the piles and to provide a podium for superstructure erection. These ground beams resist the settlement and also increases the bearing capacity of indirectly because of the pressure generated.

Painters Experiences

Vertical joints are usually placed at corners, offsets, setbacks, openings, wall intersections, changes in direction, certain heights, and long walls. Differential settlement or rise of foundation causes relative rotation of brick units and leads to cracking. Differential settlement can occur due to localized soil failure or loss of bearing capacity. Whereas, differential rise if foundation could be due to roots of trees growing into or underneath the foundation. Horizontal failure occurs due to inadequate bending strength in vertical direction under the action of vertical loads. Similarly, vertical failure occurs when the applied horizontal load exceeds the horizontal bending capacity of the wall. Brick Danger
Soil heaving is the reverse of subsidence where the founding ground experiences an upward movement causing the wall foundation to heave. Foundation heaving can lift a whole wall structure, in reality the heaving is non uniform and causes differential uplift along the length of wall. Heaving of soil can occur due to seasonal variation of moisture content in the soil or expansion of soil. Metals, other than cast or wrought iron, that have been pitted and dented by harsh abrasive blasting usually cannot be smoothed out. Although fillers may be satisfactory for smoothing a painted surface, exposed metal that has been damaged usually will have to be replaced. Each kind of masonry has a unique composition and reacts differently with various chemical cleaning substances.