HomeAbout UsProjectsProductsInformationHospitalityContact Us
Hand A DoorHardware FinishLock TypesLock Functions

HomeAbout UsProjectsProductsInformationHospitalityContact Us
Hand A DoorHardware FinishLock TypesLock Functions

Acoustical Gasketing:
Naturally, the effectiveness of sound control doors varies with different combinations of materials. The most important thing to remember is that the door’s sound rating is only as good as the gasketing and perimeter seal that is incorporated into the opening.  Gasketing’s importance derives from a fundamental property of sound: Sound waves travel through any opening with very little loss. While the amount of air flowing through a gap increases in proportion with the size of the gap, the size of the gap in a sound barrier does not matter. A tiny hole transmits almost as much sound as a much larger gap.
(301) 898-2828
(301) 898-2828
FIRE DOORS 
The fire rating classification of the wall into which the door is installed dictates the required fire rating of the door.  The location of the wall in the building and prevailing building code establish the wall's fire rating. The associated door ratings are shown in the chart below.
Sound Transmission Class (STC DOORS):
Sound transmission class (STC) ratings assign a single value to acoustical performance for a door. STC is determined by a weighted average of TL (sound Transmission Loss) values taken over 16 frequencies, which are fitted to a curve in a method defined by the ASTM E413 Classification Standard for Rating Sound Insulation. The higher the STC value, the better the rating.
DOOR CLASSICS