Question: How To Pour Concrete Against A House?

Can you pour concrete directly on dirt?

Long story short, yes you can pour concrete over dirt.

Can you pour concrete against siding?

Concrete absorbs and holds water, and most siding and trim materials—including fiber cement—aren’t rated for contact with concrete. Just like concrete, fiber-cement trim can wick water, which can cause it to fail.

What do you put between concrete and House?

Fill the Gap Between a Concrete Patio and House

  1. Asphalt saturated fiberboard, designed for expansion joints.
  2. Closed cell backer rod, a spline roller, and a pair of scissors.
  3. Concrete crack sealant and caulk gun for application.
  4. Not perfect, but it will do.
  5. All dry and with some windswept debris for character!

Can I put concrete around my house?

Subject: RE: Anyone put concrete around base of house? So long as the dirt around the foundation/basement wall is settled, it shouldn’t be a problem. Granddad did that to his house years ago and then the dirt settled from underneath the concrete leaving a large gap and the concrete slopping in toward the wall.

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Is gravel necessary under concrete?

Whether you pour concrete for a walkway or patio, a strong gravel base is required to prevent the concrete from cracking and shifting. Gravel is especially important in clay soil because it doesn’t drain well, which results in water pooling under the concrete slab and slowly eroding the soil as it finally drains.

Should I put plastic under concrete?

Recently, though, research has shown that the old traditional layer of 6-mil Visqueen (polyethylene plastic) under the slab is seldom effective for two main reasons: Although it may seem water-tight, this grade of material allows a lot of water vapor to pass through.

Can OSB touch concrete?

Any lumber touching concrete should be Pressure treated to withstand any moisture migration to it, and in MHO, OSB, should not be used in a moisture environment whatsoever. If it is a 4×8 sheet of wood in direct contact with concrete I would strongly recommend that it be Marine Grade plywood.

How much space should be between siding and ground?

Wood siding, stucco, vinyl, brick – all siding, should ideally have at least 6 to 8 inches clearance above the ground. Any clearance is better than none. If the adjacent ground is concrete, such as part of a patio or a sidewalk, it still requires the same clearance as bare earth.

What should I put between wood and concrete?

In most cases, either pressure-treated lumber or naturally durable lumber (defined by the IRC as the heartwood of redwood, cedar, black locust, and black walnut) is acceptable. In some cases, separating wood from concrete with a water-impervious membrane or vapor retarder is all that’s required.

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Should you fill concrete expansion joints?

Just remember that expansion joints should always be sealed and filled with a flexible joint sealer and never be epoxied or coated over. Contraction joints can be filled in the same manner after a coating or sealer is applied.

How do I keep my concrete slab from moving?

Seal all open cracks and joints with a polyurethane or silicone caulk. Large gaps can be filled with a backer rod first and then caulked on top. Make sure downspouts are discharging at least five feet away from any concrete slab – the farther the better.

How do you fill large holes in concrete?

  1. Use a hammer and a cold chisel to level the bottom of the hole and undercut its sides slightly so the patch can’t pop loose.
  2. Brush on a concrete bonding liquid,
  3. Mix the concrete with water and scoop some into the hole.
  4. To burnish the surface very smooth, use a steel trowel (shown) on the final few passes.

How do I fix concrete sloping to my house?


  1. Remove the concrete when you can afford it. Get some prices.
  2. Consider cutting the concrete patio lengthwise along the house and installing a perforated pipe to take the water away.
  3. Remove the concrete and put in a smaller patio.
  4. Consider replacing the patio with colored concrete.

What happens if you pour concrete over grass?

You should not pour concrete over the grass directly. For your concrete to harden flat and smooth, it is best to clear all vegetation and pour the concrete on top of smooth and debris-free soil. Leaving grass under your concrete slab can cause some unnecessary issues for you in the future.

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How much does it cost to concrete a house?

Expect to pay $50 to $75 per square metre for spray-on concrete, $60 to $85 per square metre for plain concrete, $75 to $90 per square metre for coloured concrete and $100 to $150 per square metre for exposed aggregate or a decorative stencilled finish.

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