Patching concrete floor after rough plumbing layout

How to backfill after laying waste lines under basement floor be sure to tamp it down if you use existing dirt, no need in having your new concrete floor cracking prematurely. Just prior to the contractor ending work, his plumbing and electrical subs had passed their rough inspections, then his demo guy covered up the work in preparation for patching the slab. Many remodel projects in homes with a concrete foundation and slab call for moving plumbing fixtures, such as toilets, sinks and floor drains. Switch the trowel for a wood float to make a rough surface. Installation schedule of subrough plumbing and hvac. The concrete should be damp when you apply the resurfacer, but not wet to the touch. This page gives practical advice on checking pipes in the slab. Drain pipe, and hot and cold water pipes, ready for slab pour. You have to prep the edges correctly and use the right materials. The floor is in different sections and has had plumbing and electrical strips cut in and repoured.

Be sure the plumbing lines are well bedded, and no rock is pushing on it, that will cause it to crack. Well, the contractor walked midjob, so ill be gcing after all. Like other repair treatments, selfleveling concrete can be colored with tints during the initial mixing, or the treatment can be colored after it is applied and cured, using dyes. You will probably be checking the layout after the workers have finished and gone for the day. Selfleveling concrete is a liquid mortar that you pour and spread onto a sloped, rough, uneven, but structurally sound floor. How to back fill and pour new concrete in your basement. Although all multistory buildings require multiple small slab penetrations for routing of plumbing, fire protection piping, and ductwork between floors. Then 12 drill horizontal through existing slab, and epoxy rebar, concrete over. Need recommendations to fix newly but poorly finished. The dowels prevent the concrete from moving up and down, creating problems with your flooring. How can i patch my slab around a roughin pipe in a difficult to access. To keep this damage from spreading too quickly, and to prevent potentially unsafe conditions, youll want to repair these problems before they get too big. Installation of sub rough plumbing begins before the pouring of the concrete slab.

Purchase a liquid concrete patch repair, such as liquid nails concrete repair or quikrete acrylic concrete patch. If concrete were poured against the rough parts, it would conform to the. For the back fill, you dont need to take out concrete rubble or rocks less than about 112inches in size. How to run plumbing under concrete home guides sf gate. I have probably 2030sq ft of concrete basement 4 slab that needs to be patched after rough plumbing work. Im pouring concrete over rough plumbing as pictured.

Patching concrete slab after plumbing work they should have saw cut the floor before chopping. Under slab plumbing diagrams dawson foundation repair. Follow this stepbystep guide for sealing your surface. Know the roughin of your basement toilet the distance from the wall to the. The period for completing the entire rough in plumbing procedure usually takes two to four days depending on the complexity of your plumbing needs. Then, begin in the opposite corner and work to the middle again.

The pictures below see next post are how the contractor left the work. For small patching jobs, use a premixed concrete patch. Building the house step by step foundations roughin. The slab was about 4in thick with wire mesh and a plastic barrier between the concrete and the wet clay like soil home located in new orleans. Bathroom plumbing diagram concrete slab plumbing installation. How to repair a hole in the floor of a slab foundation. You can repair a concrete floor by cleaning and straightening the damaged area, and then filling it with mortar. Below are a some under slab plumbing diagrams that are relatively common. I used a scraper and lightly hammered any spots that sounded hollow underneath to loosen any weak pieces.

A concrete floor sealer can help protect your concrete from the elements. It can also run under sidewalks, stoops, patios and decks. Saturate the concrete with water and then use a broom to push out any puddles from the pitted areas or low spots. This step in our how to build a home series of articles covers the schedule, preparation, and quality checks for the plumbing. Fill the damaged areas with epoxy resin to the surface level of the surrounding concrete floor. Installing below grade basement bathroom and kithenette must. How to repair a hole in the floor of a slab foundation home guides. The last step of connecting the sink, toilet, or tub is almost superfluous. Remove the chipping debris and brush the rough edges of the concrete with a wire brush. Adding a bathroom to your basement can be a fairly long and complicated process.

Opening s in concrete floor slabs buildings if you took an advanced concrete design course, you probably had a good introduction to the design of twoway slabs. Pour the mix into a puddle on the slab and immediately spread it photo 7. Keep adding sand until it matches just below the bottom of the existing slab. The floor varies from a flat plane by 12 inch to 34 inch. Installation of sub rough plumbing and hvac begin after the concrete pouring in the foundation walls and the formwork taking off. Start by taking a hammer and chisel and tapping any rounded edges around the crack or hole to make them straight, which will help the mortar stick better. For a bathroom floor repair, either concrete will perform just as well as the other. Plumbing is one of the roughin elements of construction and is.

Concrete slab repair for plumbing trench ive just cut several trenches 23 ft wide x 25 ft long in my existing concrete slab to run plumbing. So far it looks okay although i think my concrete could have been a little wetter. You need to be sure the dirt is close to optimum moisture as you put it back. This project guide offers steps and instructions on how you can repair those small cracks and crumbles yourself using just a few common masonry tools and a little bit of time. Helpful illustrations will guide you during the home repair. Patching concrete floor after rough plumbing terry love. The client wants the overlay to be the finished product with 4foot squares cut in the floor for a pattern. If you use a readymix concrete patch, all you need to add is water. Plumbing is one of the roughin elements of construction and is generally hidden by the finished elements such as walls, floors and roofs. Surface repair options for concrete floors and subfloors. Vacuum the residual debris at the rough edges with a wetdry vacuum. Simply pouring wet concrete into a hole in your driveway, sidewalk, or basement floor wont make for a lasting repair. Thin cracks in concrete that are less than 14inch wide are even easier to patch. How to backfill after laying waste lines under basement floor.

You can create a smooth surface with a metal trowel. Various thickness overlay concrete construction magazine. Building and plumbing a house takes skill, perseverance, precision and aptitude. After the primer has cured, mix the compound and spread it onto the floor up to 12 inch thickwith a floor squeegee. The plumber test the pipes, cover them with sand and then you can pour the concrete for the basement floor. How to rough plumb a basement bathroom with pictures. After you properly finish and wrap your plumbing connection is it permitted, will you have a city inspector sign it off. We are redoing the floor of an old stone building that never had plumbing or electricity and are trying to negotiate the services. Fill until the concrete reaches the tops of the forms. Apply the concrete repair sealant to the affected area and smooth over with a putty knife. It took about 25 bags of 60 pound concrete mix to fill and repair the new bathroom floor. In my area, we put 2 gravel, 6 mm visqueen or 10 mm if you can find it. If you have concerns about the state of repair of under slab plumbing or have.

Use this stepbystep process to smooth out rough wall surfaces. How to patch and level a concrete subfloor pretty handy girl. Concrete slab repair for plumbing trench concrete, stone. We started and finished the rough in of the upstairs pex supply lines. Your plumbing contractor should be present when the concrete is poured to ensure no pipe or vent is shoved or kicked out of place. As the concrete settles, scrape the surface with a trowel. There are generally accepted plumbing rough in measurements for sinks, toilets, and tubshowers.

Depending on your concrete slab design and specification, shovel granular fill such as crusher dust or compressable sand onto the slab pad to the required height and screed it level. Concrete patch in bath remodel for plumbing pipes youtube. Plumbing systems in concrete slabs go in before the concrete is poured, as they are installed beneath the slab. Im not sure whether this is the appropriate newsgroup to post this question, but i would appreciate any pointers or suggestions. Most compounds require that you first coat the floor with a primer. I added additional cement to the concrete mix to give it more strength. Rough in plumbing 24 days if you have a basement with plumbing or if you are building the house on a concrete slab as opposed to wooden floor joists, once the foundation is in and backfilled and tamped packed down, and the soil treated, your plumber needs to install the sewer line and the water pipes that will be under the concrete. Repairs after the fact are costly and difficult, and require cutting into the. Keep filling until it is slightly higher than the hole and then screed it off. Patching hole in concrete slab terry love plumbing. After the drain relocation was done i put the sand back in, compacted it and.

These watery repair materials are superb for narrow cracks as they conform to the crack. Removing the existing plumbing leaves holes in the floor that must be filled. This is when the plumbing contractor puts the pipes in place, prior to the cement being poured. These plumbing sewer pipes should be checked anytime there had been significant foundation movement or foundation repair. Roughin plumbing for a bathroom toiet, tub, sink drain and ejection pump basin has.

Rough in plumbing goes beneath the concrete structure or slab where there are wires attached thereto. The plumbing system build starts with a concrete slab plumbing rough in. Why acid etching is no longer recommended as a concr ete prep method by sophia daukus on february 7th, 2018 in environment regs, installation, technical the longevity of a coating partly depends on how well it adheres to the surface of the concrete. We are planning to have a concrete floor foundation with these layers. From there, the pipe runs under the floor and out to the city sewage system under the. Feb 14, 2019 checking the plumbing layout in a concrete slab before it is poured is. The experts show how to repair a waterdamaged subfloor. The existing floor is 3 to 4 depending on the spot. Removing the existing plumbing leaves holes in the. Patching concrete slab after plumbing work concrete. In the commercial work i design, we require all cutouts to be sawcut. You can mix a pourable patch for this repair, but i dont recommend it. Mix concrete and pour into the hole, backing it under the undercut and ensuring no voids exist.

It is advised that you place the wirings in a protective pipe or tube together with the rough in. The walls have a 2x8 treated board around the bottom which has about 1 12 inches above the top of the concrete floor. Get the rough in right, and you are 90 percent of the way there. Does anyone know of a good self leveling product that can be poured over this new garage floor so the color is consistent and the rough spots are covered up. During the initial building of a home that has a concrete slab foundation and basement level. We are going to do a 2inch overlay on an existing concrete floor. A rough edge is much better as the new concrete patch will adhere. Often the hardest part about plumbing is the rough in. In this video you can see where we filled in the concrete flooring that. Why acid etching is no longer recommended as a concrete. After framing your new dream home, its time to start the plumbing rough in. Checking the plumbing layout in a concrete slab before it is poured is one of the most important things the home builder will do. Plumbing in concrete slab benjamin franklin plumbing. Dont ignore this because water leakage under a concrete foundation can cause additional problems.

This article will get you through the initial stage of this project, the rough plumbing. Before pouring the self leveler there is some prep work required. How to plumb a basement bathroom the family handyman. Holes 1 inch or deeper require a concrete mix with coarse, crushedstone aggregate, which bonds well with existing concrete. Patch and level a concrete subfloor preparing the concrete floor. Use a putty knife to fill the crack or hole in the concrete, and then level the top of the resin with the floor using the knife.