Although metal tubing is inherently heat resistant, care should be exercised to prevent putting a short section of metal tubing through the wall followed by connections of PVC pipe on either side. In the event of a fire, the PVC piping can melt and the fire can spread through the wall via the
metal tubing in the wall. Normally, a firestop wrap strip or a firestop device known as a firestop collar is recommended during the installation of new piping. What a firestop strip is a thin, rubbery strips of material embedded with intumescent material. If you didn't know, an intumescent is a substance which swells as a result of heat exposure, thus increasing in volume, and decreasing in density. Firestop wrap strips can be wrapped around a pipe, secured with aluminum foil tape, and slid into the hole around the pipe, also known as the annulus, such that the exposed edge projects 1/4in from the wall surface. The space that remains between the wrap strip and the wall can be sealed with firestop chalk. When collars are used, the fasteners should always be steel. Do not use plastic or lead shields. In gypsum board walls, use steel hollow wall anchors in conjunction with steel fender washers. In concrete walls, use steel masonry screws with steel fender washers. Ensuring that the central vacuum system is installed properly is important, but the penetrations through walls intended to provide a measure of fire resistence can be equally important from a life and property safety perspective. Simple money and life saving techniques are here available to you, all you have to do is act on it. Professional installers should be aware of these requirements or if you're doing it yourself, then consult your local authority having juristication.To purchase a firestop collars, visit our Installation Materials section on our website.
And if you have any questions don't hesitate to give us a call at 1-800-322-2965


