Is foundation parging necessary?
Parging is the coating applied to the visible (above-grade) portion of your home’s foundation walls. A parge coat is not a requirement under the Building Code, but it does have another useful purpose: it acts as a barrier against inclement weather.
Is parging just cosmetic?
The Building Code only requires parging (a cement-based layer) on concrete block foundation walls below grade. Brush coating, however, is only a cosmetic application over poured concrete foundation walls and is covered by item 1.15 “Brush coating on above grade poured concrete foundation wall is falling off”.
How long should parging last?
The reality is that there is so much bad parging done that people believe its normal for parging to fail and to wear out. This is unfortunate because parging should last 30-50 years!
How long does it take to Parge a foundation?
Parging a concrete foundation wall is an easy way to cover and strengthen an otherwise susceptible surface. This thin coating of material is particularly useful for older concrete block foundations which are held together with mortar. The process can be completed in a single day of work.
Is parging difficult?
Cement parging is pretty easy to work with and may be available in a variety of colors. If you want a durable finish, a little higher end, then try acrylic coating. This mix of cement and liquid acrylic is also available in a wide variety of colors.
Why did my parging crack?
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. Above the frost line, the crack will appear due to both the parging and the adjoining soil freezing/thawing.
Is it a good idea to paint parging?
Short answer; you definitely can, but you shouldn’t. Assuming that the concrete foundation is grinded and rasped to the perfection (which is feat in itself already) the paint will only serve as a decorative purpose. Not only that, it will start chipping away and peeling off soon enough.
What is the best Parging mix?
For a quality parging mix its best to use a mix of about about 3 parts sand to at least 1 part portland cement. You can add 1/4 to 1/2 part lime powder to make it a little easier to spread or apply. This is mixed with enough water to get a nice consistency, not too runny.
Can I Parge over old parging?
Applying a new layer of parging on top of an old layer is useless because it will also crack and fall off. It’s therefore advisable that you get rid of the parging that’s already damaged. Since you can’t remove the old parging with your bare hands, you will need a cold chisel and a mallet.
Where does parging go on a concrete foundation?
Parging is applied to the foundation where it meets the ground. It may seem strange to suggest that the material to protect a poured concrete foundation is a mortar-based cement parging foundation, but the purpose of parging is to provide a protective layer that can be replaced when it becomes necessary.
What’s the average cost to repair a foundation?
The average cost to repair foundation problems is $4,511 with most homeowners spending between $2,318 to $6,750. Minor foundation crack repairs cost $620 or more to fix, while major repairs that require hydraulic piers can cost $10,000 to $15,000. Foundation Repair Cost. National Average Cost.
How much does it cost to pour a concrete foundation?
Labor Cost to Pour a Concrete Foundation The total cost to pour a concrete foundation $6.41 per square foot on average. The labor cost to pour concrete is $2.60 per square foot, while the cost of concrete is $3.81 per square foot. Concrete contractors charge $45 per hour with additional concrete delivery fees of $60 or more.
How often does a foundation need to be parged?
If a foundation that is being parged moves each year, the parging may only last 1-5 years. If it’s stable it could last 15-30 years.