Slope to Drains Flooring

Does your processing floor have puddles, low spots or birdbaths? Are you replacing or moving your floor drains, or re-locating into an existing building?   In order to provide effective drainage, a floor must be sloped to the drain at a tolerance of 1% to 2% grade.  A high strength polymer concrete underlayment can be a cost effective alternative to demolition and removal of the existing concrete slab. This work can often be performed at $6 to 8 per square foot.

For over 30 years, EPF has provided cost effective solutions for sloping existing floors and elimination of puddles. We control all aspects of your flooring project.  This includes expert concrete floor consulting, specification assistance, materials, installation, and exclusive 5 year EPF warranty.

sloped to drain flooringFirst, EPF performs the surface prep of the existing floor and installation of the bonded polymer underlayment. Next,  PUMA-CRETE® urethane mortar topping is applied as the finish.  The finished system provides high strength, along with a sanitary, chemical and slip resistant floor, that drains properly. We can also install trench drains, slabs, curbs and more.

Slope Floor To Drains


EPF provides slope to drain floor consulting services, which include floor drain layout and drainage plan, elevation calculations, and related issues.  We also provide turn key installation of slope to drain flooring,  using a high strength, fast setting polymer grout, and a urethane concrete topping.

There are four options for enhancing water drainage on your floor.

(sorted by lowest to highest cost)

  1. Pre-fill low areas
    Birdbaths can be filled level, using high strength urethane grout.  This will raise the low spots, and reduce (but not eliminate) puddling in the overall floor.  The depth of the puddles will be reduced, and some puddles may be eliminated. The perimeter edges of the “patched” spots will be visible.
  2. Install Additional Floor Drains
    Installing more drains decreases the distance that water needs to be moved, to get it to the drains.  However, you are still left with most existing puddles.
  3. Slope/Pitch the Entire Room/Area at 1% to 2% grade
    (effective for wide open areas, and can be cleared of equipment)This option provides guaranteed drainage throughout the entire room/area. The polymer grout is sloped/contoured to the drainage pattern required.  Next, a new overlayment (urethane concrete mortar topping) shall be applied over top of this, at 1/4 inch thickness, to complete the system.Note that this shall increase the height of your floor, at the perimeter edges of the room/area.  For example, at 1/4 inch per foot, this adds 2.5 inch to the perimeter height for every 10 feet from the drain. This means that doorways will require ramping down outside the room, or step downs, due to elevation changes.EP Floors can help with the design and installation of these transitions, to minimize impact for traffic in/out of the areas. In general, this option adds 75-100% increase in cost of an overlayment project, and a minimum of one day.  However, this is usually more cost effective (and faster) than complete removal/replacement of the slab (see option #4).NOTE:  sloping with a polymer grout must be performed BEFORE the new overlayment is installed.  Once a new overlayment is installed, the cost for corrective measures increase exponentially.
  4. Removal of Entire Slab and Re-Pour New Concrete
    This option requires extensive noisy heavy demolition, is time consuming, and is usually most expensive option;  for existing production areas, the downtime alone can exceed the cost of the work, when factoring in lost production costs.Excavation/removal operations can open up a “can of worms” underneath, with potential damage to existing sub-slab utility lines and plumbing, soil contamination, etc.   This option also requires re-installation of new drains, adding even more to the total cost.



% slopein/ft slopeSloping Effect for ¼” Resinous Flooring
00″No Fluid Flow
11/8″Fluid Flows w/ Assistance for Surface Water
1.53/16″Fluid Flows with Some Assistance
21/4″Complete Fluid Flow w/ no Assistance Needed


  1. Scarify/profile the concrete for excellent adhesion.
  2. A bonding agent is applied.
  3. The 5,000 psi polymer concrete grout is applied next, at a slope consistent with the customer’s requirements.
  4. Saw cut control joints into the slab.
  5. Apply Puma-Crete urethane mortar topping  (typically at 1/4 inch thickness).
  6. Sawcut and fill expansion joints in new overlayment with polyurea sealant, to allow movement at building expansion joints.

Turnaround Duration for Slope to Drain Floors

For up to 2,000 sq ft, a complete turnaround can normally be accomplished over a 3 day period.  If performed over a 3 day weekend, downtime is eliminated !  For larger area, contact one of our flooring consultants, for a project evaluation and estimated timeline.


Unless a floor section is specified to be sloped to drains, our food safe flooring always follow the general contour of the substrate they are applied over.

Check out the advantages we offer, over our competition !

Top 10 Puma-Crete® Advantages

For more information, including the color availability, technical properties, or other properties of our slope to drain flooring, please contact the technical support team at our office at 800-808-7773