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sound dampning door material
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RELATED FAQS
Question
Answer
What do you do if rust spots show up on steel doors and frame material?
Resolution:
During the construction cycle, spot rust is usually attributed to either material handling damage or improper storage of the material on the jobsite. The material must be repaired and repainted as ...:
What is a Cam Lift Hinge?
Resolution:
Cam Lift Hinges are specially designed hinges used mainly on acoustical door assemblies. The Cam Lift Hinge lifts the door during its travel and seats the door bottom for a pos...:
What is an STC rating?
Resolution:
STC stands for Sound Transmission Class. An STC (Sound Transmission Class) is a single number rating system derived from measured values of sound transmission loss in accordance with ASTM E90...:
The Von Duprin 98 or 99 ALK kit will not sound the horn
Resolution:
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...: