The pad must be applied to the box and then either lapped over the front of the tile plate (if one is used) or excess material must be worked toward the front of the box and built up into a compressible gasket much like the pinched area of a pie crust. Installing it on the other side requires some technique. Installing the pad on the side where the board is already installed is straight forward. The installation sequence is after the gypsum board is applied to one side and before it is closed in on the other side. They are applied to the back surface of the box, as well as the three sides that are away from the stud. How are they used? Putty pads, as mentioned above, are designed to be applied to the external surfaces of metallic and nonmetallic boxes.
The pads are now used primarily to overcome certain restrictions on the number and placement of electrical boxes in rated gypsum wallboard assemblies.
Why are they used? Over time, sound deadening has actually become a secondary use for putty pads. He requested that pads be made from a firestopping putty and thus an idea was born. An inspector in southern California about a dozen years ago happened to pick one up at a job site and apply a lighter to it. Where did this idea come from? Sound deadening pads historically have been used in some jurisdictions to meet noise abatement (sound attenuation) requirements between living units in apartments or condos. Let’s discuss the electrical box usage first and then cover their use in through-penetration firestops. We also have used putty pads in a few systems for through-penetrations. Putty pads are designed to be applied to the external surfaces of metallic and nonmetallic switch and receptacle boxes in some rated wall conditions. What are putty pads used for? This is really the question most people ask. At the request of several of our customers, we’re going to attempt to remove the shroud of mystery surrounding this product by answering some of the most commonly asked questions. One of the least publicized and most misunderstood products in the SpecSeal® line would have to be our putty pads.
0 kommentar(er)
