Spraying Tar Concrete Interior Walls

However asphalt based tar isn t a true waterproofing material.

Spraying tar concrete interior walls.

It offers a wide variety of finishes from a simple knock down to a sophisticated faux venetian plaster. Wall spray is a concrete wall spray overlay that is a cement based overlay designed for both interior and exterior vertical surfaces. The porous material can allow water to pass through rather easily if not properly protected. The tiny paint droplets produced by spraying do not connect with each other as well as rolled on paint.

Professional painters have a clever technique that combines the best of spraying and rolling. Wallspray concrete wall overlay may be applied by compressed air spray equipment and by trowel. Though durable and easy to manipulate concrete is not resistant to water. Why exterior waterproofing does not last.

Internally walls withstand continual impact and abrasion. External wall surfaces are exposed to constant attack from the weather the environment pests and chemicals. Tar is painted on the walls to keep water vapor from moving in and out of the walls. If you have ever noticed the black compound on the exterior of a concrete foundation you know the ubiquity of this tar based material.

Using a paint sprayer. Tar waterproofing is brittle tar waterproofing membranes has no give and cracks eventually develop as the concrete constantly contracts and expands and the house settles similarly tar paper or pargeting a layer of mortar on block walls are inelastic and crack. Asphalt based tar is often used to damproof basement walls.