Job of the Month - Arkansas Children's Hospital - MRI Unit

From the company that has successfully installed over a billion square feet of gypsum floor underlayments, Hacker Industries, Inc.'s new DYNA-SCREEED® SLU is proving to be cut above other cement-based self-leveling underlayments. Introduced in 2005, DYNA-SCREEED® SLU’s performance on rehabilitation and repair projects is quickly catching the eyes of contractors and architects nationwide who are looking for a highly-engineered, easy to install and cost effective floor underlayment.

In 2006, Nabholz Construction selected DYNA-SCREED® SLU to renovate a storage area in the Arkansas Children’s Hospital to a new MRI Unit.

Drury Company, a Certified, Licensed Applicator of Hacker Industries, Inc., was contracted by Nabholz Construction to refurbish the floor in the 1,200-square-foot section of the hospital. Drury's reputation for offering flexible solutions to meet customers diverse needs and Hacker Industries, Inc.'s quality floor underlayments made the perfect match for this project.

The floor surface badly need to be repaired and leveled to accommodate the MRI equipment.

The original concrete subfloor in the hospital was uneven (approx. 1-1/8" difference between the existing surface and the floor in the adjoining room). The General Contractor needed a new subfloor that would withstand the traffic of heavy, wheel-based equipment, and level the uneven surface. The facility also required a flooring underlayment that was durable, fast drying and cost efficient.

DYNA-SCREED® SLU, developed and engineered for fast-track renovation and repair projects, was the ideal product for the job. DYNA-SCREED® SLU is a hydraulic-cement based floor underlayment that when mixed with water, becomes a pourable mixture that seeks its own level, provides a high-strength surface and is ready to accept finished floor coverings in as little as 24 hours.

The subfloor required shot blasting per Hacker Industries, Inc.’s recommended specifications to meet ICRI CSP of 3+ and to insure the proper bond between the underlayment and subfloor.

Once the profile was achieved, the subfloor was swept clean and vacuumed to remove all residual dust and debris. Drury Company then applied an approved primer over the entire surface. After the primer completely dried, Drury Company decided to pump the job in two lifts to achieve the 1-1/8” nominal thickness and leave a smooth, flat a surface. The first lift was poured at 5/8” and the second poured at 1/2".

DYNA-SCREED® SLU must first be primed by using a broom to spread the Primer throughout the surface area.

"Drury Company certainly delivered on all fronts," said Cliff Johnston of Nabholz Construction. "The quick drying capabilities of DYNA-SCREED® SLU really saved our construction schedule. The entire installation was completed a day early." The special drying technology of DYNA-SCREED® SLU meant the new floor surface dried and hardened in a matter of hours, helping to reduce costly downtime.

To contact Drury Company, call Charlie Westrich at (573) 334-8271.

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