What is parging and its purpose?

Parging is the coating applied to the visible (above-grade) portion of your home’s foundation walls. It is applied to both poured-concrete and concrete-block foundations to hide surface imperfections, marks from formwork and the like, so its role is essentially decorative.

How much does it cost to parge a foundation?

Parge foundation walls $3 – $4 / sq. ft.

Can I do my own parging?

Mike Holmes answered, “parging can be DIY, as long as you do it right. Start by chipping away at the cracked/loose concrete with a concrete chisel. Then brush the area with a wire brush-that will get rid of any loose bits, dust and debris. Then hose off the entire area with water.

How thick can you apply parging?

The parging material consists of portland cement, sand and other aggregates. The sand gives the cement its stickiness — it can be applied up to 2 inches thick, although a 1/2-inch coat is generally sufficient.

How do you make parging smooth?

To achieve this smooth appearance, apply a thicker coat of mortar, then apply a thinner coat on top of the first application. You can even omit the second coat and simply dip your trowel into a bucket of water then smooth the parged surface with the dripping trowel.

Is parging a good idea?

Parging is a thin coat of mortar-type material that’s usually troweled on to the outside of a block wall. It serves no practical purpose and is virtually guaranteed to fail.

What does parging mean in construction?

Parging (or pargeting) is a way to apply a smooth surface to a masonry wall. It is most commonly used to apply a smooth surface to the exterior of a masonry foundation so that a waterproofing compound can be applied more easily.

Is parging difficult?

Parging is similar to applying stucco. It’s a technique that requires some skill and practice, but if you master it, parging helps even out textured concrete, hides cracks and damage, and makes your concrete walls look better.

How thick should parging be?

As outlined in this section, the parge coat is typically applied in 2 coatings – each between 1/32” – 1/16” (0.8 mm – 1.6 mm) in thickness with a fiberglass mesh interlay that is applied and floated into the first coat.

How thick should a parge coat be?

Do you parge below grade?

For poured concrete walls, a damp-proof coating can be applied directly to the surface; however, for masonry block walls and below-grade insulated concrete forms the surfaces must first be prepared. The surfaces of concrete masonry block walls must be coated with a layer of parging before damp-proofing can be applied.

How thick can a parge coat be?

What is a concrete parge coat?

A parge coat is a thin coat of a cementitious or polymeric mortar applied to concrete or masonry for refinement of the surface. Pargeting is a more involved process, involving designs in relief created in the surface. Parging is usually applied with a trowel and pressed into the existing surface.

How thick is a parge coat?

Why is my parging cracking?

Although used as a moisture barrier, parging itself can sometimes become wet. When this happens, the water inside the parging can freeze and expand – resulting in cracks. Parging reacts differently to the freeze/thaw cycle depending on whether that section of the wall is above or below the frost line.

Why is parging falling off?

A sudden drop in temperature is bad news for a freshly applied coat of parging. Water soaks into the parging, then expands as it freezes, cracking the surface and breaking off chunks. If the ambient temperature is too cold -the Parging freezes.

Can I parge over old parging?

Be sure to wear safety goggles and hearing protection. With all the old parging removed, you’ve got a decision to make. You can parge again or you might want to consider a simple coat of 100 per cent acrylic exterior latex paint instead.

Do you Parge below grade?

What is a parge coat?

The term ‘ parge coat ’ refers to the application of a thin coat of a cementitious or polymeric mortar to concrete or masonry walls . Parging (or sometimes ‘ pargeting ‘) is commonly used as a method for improving the thermal and acoustic performance of walls before before finishing them with a final surface such as drylining.

How do you apply a parge coat to walls?

The parge coat is typically applied by hand, or by spraying, in a continuous coating with a minimum thickness of 6mm. As the walls are then finished with a subsequent top layer, it is not necessary to smooth the parge coat to a perfectly flat surface. Blockwork . Dot and dab .

The parge coat is typically applied by hand, or by spraying, in a continuous coating with a minimum thickness of 6mm. As the walls are then finished with a subsequent top layer, it is not necessary to smooth the parge coat to a perfectly flat surface.

What is parging and when is it used?

Parging is often used in instances where severe and wide spread brick deterioration can be found on building walls. The home or building owner may elect to essentially cover over the brick surface with a cement coating.