How do you pour concrete next to a foundation?

Quote from the video:
Quote from Youtube video: So what we'd like to do is we like to get quite a bit of the concrete pour it out before we start screeding. And we're using that that red chalk line to go to on the foundation. Wall. As our grade.

Do I need a foundation for a concrete patio?





Yes! A strong gravel base is required when building a concrete patio in order to prevent the concrete from shifting or cracking. Adding gravel under the concrete also provides a level surface for your foundation and adds proper drainage when there is pooling water.

What do you put between concrete and House?

Seal cracks in concrete with durable urethane caulk. It’ll keep water out and protect your foundation and walks from further cracking and eroding. You can do it in less than a half hour.

How do you prepare the ground for a concrete patio?

Quote from the video:
Quote from Youtube video: The first thing you want to do is bring in a backhoe or a skip loader and scrape off any organic material or topsoil from the area where the slab will be poured topsoil.

Should you pin patio to foundation?

Yes. In temperate climates the frost/ice forces though slow can cause a lot of damage to vertical walls. Upheavel of a patio is bad, cracking in patio is bad, but causing an issue with your home foundation is really really really bad.

Should patio be against house?





A patio should slope away from the house at the rate of 1/8″ (3mm) per running foot. Generally, a 4″ (100mm) thick slab set 2″ (50mm) above ground level is suitable. To ensure that the height and slope are correct, begin the excavation, layout and form construction where the patio meets the house.

How thick should concrete be for a patio?

Four inches is the minimum thickness for a concrete patio. You’ll want to make it six to eight inches thick if the patio will support a structure such as a gazebo or hot tub.

Do I need gravel under concrete?

You do need gravel under a concrete slab, footing, or patio. Gravel provides a solid foundation for your concrete as it can be compacted. It also improves drainage, preventing water from pooling beneath the concrete.

Does slab on grade have footings?

A slab-on-grade is a type of shallow foundation in which a concrete slab rests directly on the ground below it. A slab-on-grade foundation usually consists of a thin layer of concrete across the entire area of the foundation with thickened footings at the edges or below load bearing walls in the middle of the building.

How much does it cost to pour a 24×24 slab of concrete?



between $3,057 and $5,944

A typical 24×24 garage slab costs between $3,057 and $5,944 with prices ranging from $5.31 to $8.31 per square foot for a 4” reinforced slab of concrete, and $6.83 to $10.32 per square foot for a 6” slab of reinforced concrete.

Can you pour concrete directly on dirt?

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

Do you need rebar for 4 inch slab?



The thickness of rebar should be no more than 1/8 that of the slab, so a 4” slab shouldn’t have steel greater than #4 or 1/2″ bar. It’s best to check with a Structural Engineer if your slab will bridge or cantilever. What is this? For 4” concrete slabs used for driveways and patios, #3 rebar is common.

Does a concrete patio need wire mesh?

Concrete driveways that need to carry a heavy load should have both rebar and wire mesh to reinforce the concrete. For a patio, you might be able to get away with using welded wire mesh. But remember, all concrete will crack and all concrete will shrink.

How far apart do you put rebar in concrete?

Place rebar in a grid pattern with a spacing between bars of approximately 12 inches. In either case, blocks should be used under the reinforcement to keep centered within the concrete. Synthetic fibers have also proven to be beneficial in driveways as a way to reduce shrinkage cracks.

How far should rebar be placed from edge of concrete?

For example, if you are laying down concrete for a floor, the rebar should be about 4 inches from the edge. If you are pouring concrete for a foundation, then the rebar should be about 6 inches from the edge.

Can you have too much rebar in concrete?



Excessive reinforcement occurs when there is too much shrinkage or honeycombing. Cracking occurs when the reinforcement places too much strain on the drying concrete, causing it to fail to accommodate shrinkage.

Do you need rebar for 3 inch slab?

Rebar is not necessary for every concrete project. The general rule of thumb is that if you are pouring concrete that is more than 5 inches in depth, you are probably going to want to add in some rebar to help reinforce the entire structure.

How do you lay rebar on a concrete patio?

Quote from the video:
Quote from Youtube video: The bottom one which we want to keep close to the bottom of the foundation is. About an inch and a half two inches perhaps off the ground and that's about where you want it to be.

What is a good base for concrete?

Most concrete contractors want a mix of coarse and fine aggregate to create a compactable base that is going to be safe for settlement and drainage. Crusher run (a mix of crushed stone and stone dust) is one of the best base materials for concrete flatwork.

How thick does a concrete slab need to be?



Standard concrete floor slab thickness in residential construction is 4 inches. Five to six inches is recommended if the concrete will receive occasional heavy loads, such as motor homes or garbage trucks. To prepare the base, cut the ground level to the proper depth to allow for the slab thickness.