Digital Encyclopedia

  Hydraulic Door Closer Installation  ***************************************** Hydraulic Door Opener Applications: Garage entry doors, Hallways, Shops/restaurants, Office, Emergency Doors, Security Entry/Exit Doors with alarms, Condo, Basements, Storage *** Relevant Background: " A  door closer  is defined as any  mechanical device  that closes a  door  in a controlled manner, preventing it from slamming, in general after someone opens it, [1]  or after it was automatically opened. The force used to open the door is stored in some type of spring and when released this energy is then utilised to return the door to a closed position. Door closers can be linked to a building’s fire alarm system. Where doors need to be held open for the majority of the time they are held back with an electromagnetic device. [2 ]   When the fire alarm is triggered it cuts power to the electromagnetic hold-open device allowing the doors to close. These hold...

Carpet Removal ******************************************************************************* Q: What may one use to cover carpets for ceiling tear outs and paint jobs? A: Polyester Covering which is usually waterproof Video: Carpet replacement after ceiling drywall removal & Paint job  Note: Paint job and Ceiling Tear out was done by a third party contractor not me! I replaced the carpets! *** Relevant Background : " A   carpet   is a   textile   floor covering   typically consisting of an upper layer of   pile   attached to a backing. The pile was traditionally made from wool, but since the 20th century, synthetic fibers such as   polypropylene ,   nylon   or   polyester   are often used, as these fibers are less expensive than wool. The pile usually consists of twisted tufts that are typically heat-treated to maintain their structure. The term   carpet   is often used in a similar context to the term ...