Retrotherm Insulators, Inc. - Zionsville, PA (Serving Maryland)
Service Company
ISO 9001:2008 certified. Spray applied acoustical ceiling application services. Acoustical materials are available with compression strength ranging from 400 psf to 600 psf, bond strength ranging from 600 psf to 900 psf, noise reduction coefficient ranging from 0.65 to 0.95, 5 pcf plus/minus 0.5 pcf dry density, maximum 13 percent moisture absorption, 80 percent light reflective surface & 4.7 thermal resistance. Acoustical materials are made of recycled cellulose fiber treated with fire retardant chemicals & blended with advanced vinyl adhesives. Feature includes non-toxic. Applications include natatoriums, gymnasium, recording studios, meeting rooms, theatres, auditoriums, detention facilities, church sanctuaries, museums, amusement parks, sports facilities, parking garages & convention centers. Acoustical materials are available with ten years warranty. OSHA & ASTM approved. UL listed.
Brand Names: K-13, Sona Spray, SonaKrete
www.retrotherm.com

Mid-Atlantic Materials, Inc. - Baltimore, MD
Distributor
Wall panels, suspension systems, insulation;Distributor
Brand Names: Chicago Metallic

Mid-Atlantic Materials, Inc. - Beltsville, MD
Distributor
Wall panels, suspension systems;Distributor
Brand Names: Chicago Metallic

Clevenger Corporation - Beltsville, MD
Distributor, Service Company
Distributor of Acoustical Materials; Acoustical, Ceiling,, Dry Wall, Flooring Contractors service
Brand Names: Conwed

Flaco Construction - Baltimore, MD
Service Company
Drywall contracting & installation services. Residential & commercial acoustical & ceiling constructions.

Capitol Building Supply - Hagerstown, MD
Distributor
Distributor of acoustical ceilings.

Allstate Building Supply Co., Inc. - Lutherville, MD
Distributor
Caulking Materials, Ind. Doors

Chicago Metallic Corp. - Elkridge, MD
Manufacturer
Metal, Linear, Lay-In, Snap-In, Suspension Systems

JB Acoustical Supply - Baltimore, MD
Distributor
Grid, Linear Systems, Walls, Insulation

Supplies Unlimited, Inc. - Baltimore, MD
Distributor
Building Products, Lumber, Drywall Materials

Salisbury Building Supply Co., Inc. - Salisbury, MD
Distributor
Distributor Of Crushed Stone, Ready Mixed Concrete, Sand & Gravel

Art-Craft Ceilings Co. - Abingdon, MD
Distributor, Service Company
Distributor