![]() If your not experience be careful to not add too much water, you can add a little at a time. This is mixed with enough water to get a nice consistency, not too runny. You can add 1/4 to 1/2 part lime powder to make it a little easier to spread or apply. Parge coating being applied on a stone foundation wall with a rough trowel pattern.įor a quality parging mix its best to use a mix of about about 3 parts sand to at least 1 part portland cement. A poorly applied parge coat could last less than a year, looking worse than before you started and need almost constant maintenance and repair some cases. A good parge coat job will be practically maintenance free and last for many decades. The parge coat forms a water resistant, protective barrier that helps prevent water penetration into the building materials that can cause moisture damage or spalling deterioration.Īs in many things good preparation, using the proper materials and the correct technique make a world of difference. The purpose of a masonry parge coat is to protect the materials making up the wall, the stone, brick or masonry block and the mortar in the joints that hold the wall together. I’ve inspected hundreds of homes where the parge coating was not properly applied and loose and cracking and falling off in chunks, sometimes as soon as the same year it was applied. It is most often seen on above grade foundation walls and the interior of basement walls. A parge coat is a thin masonry coating that is applied over interior and exterior masonry block and stone walls. ![]()
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