Daewoochem

DWC-NA Floor Buffer Material

DWC-NA Floor Buffer

DWC-NA Floor Buffer is a cushioning material developed to reduce inter-floor impact noise in multi-unit residential buildings. By applying a partially open-cell structure, it absorbs impact energy while maintaining workability similar to conventional EPS products, with balanced sound insulation, recovery, and durability.

View Catalog Bare Slab Test Report After-Ceiling Test Report

Floor Buffer Inter-floor Noise Apartment Noise Buffer Material Floor Impact Sound Insulation

Certified Structure & Design Standards

DWC-1 Installation Section

DWC-NA Floor Buffer

DWC-NA Side Buffer

Product Overview

DWC-NA is a floor buffer designed for both impact noise reduction performance and on-site workability, based on the standard floor structure. The catalog includes heavy-impact noise compliance results under the post-verification system, the floor impact sound insulation structure certificate, design documents, and specifications.

Min. 30 mm Applied thickness of DWC-NA Floor Buffer

Min. 210 mm Slab thickness per certified structure

Year 2026 Floor impact sound insulation certified

DWC-NA Floor Buffer overview and features

Product Features

Excellent Sound Insulation

An open-cell structure absorbs impact energy and enhances heavy impact noise reduction performance.

Outstanding Recovery

Elasticity and recovery comparable to polyurethane foam, minimizing performance degradation during long-term use.

Stable Durability

Low material change against temperature shifts and chemical interactions, supporting stable long-term performance.

Waterproof & Adhesion

Partially open-cell yet engineered to block moisture and maintain solid adhesion to concrete.

Eco-Friendly

Polyethylene-based product that can be manufactured using recycled raw materials.

Easy Installation

Installed on site in a manner similar to EPS products, making handling and placement simple.

Specifications

Type	Thickness	Width	Length	Remarks
DWC-NA Floor Buffer	30 ± 5 mm	1,000 ± 10 mm	2,000 ± 10 mm	Standard product
DWC-NA Side Buffer	10 ± 5 mm	Made to order	Made to order	Per site conditions

Installation Flow

Main installation steps based on the catalog specifications. Detailed criteria must be confirmed per site conditions and design documents.

Remove debris and irregularities from the floor; verify the finished floor reference line.

Attach side buffer to walls of living rooms, kitchens, and rooms with a 10 mm gap from the slab.

Install DWC-NA Floor Buffer, secure with OPP tape, and seal seams.

Apply lightweight foamed concrete, heating pipes, and finishing mortar per spec, then cure.

Performance Reports & Certificates

The floor impact sound insulation structure certificate and field measurement reports are available on this page or as PDFs.

DWC-NA Floor Buffer Catalog Product introduction, specifications, certification, design documents, specifications, patent materials View PDF

Bare Slab Field Test Field measurement report on bare slab for verifying floor impact sound insulation structure performance View PDF

After-Ceiling Field Test Field measurement report after ceiling installation, verifying floor impact sound insulation performance View PDF

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Keywords: Floor Buffer, Inter-floor Noise, Apartment Noise, Buffer Material, Floor Impact Sound Insulation Structure