How To Secure Sheet Metal For Ducting

Step 4 use screws and foil tape to hold the fiber board duct pieces together.

How to secure sheet metal for ducting.

Cover the complete duct with insulation and use tape to secure it in place. And sheet metal screws or loose. Check the speed of the blower motor on the furnace. If necessary switch the wires to reduce the blower to its lowest speed.

Also if you have ever tried reaching into a dryer exhaust duct to clean it by hand and had your arm ripped open by the sms screw you may have another objection. Sheet metal ducts must have insulation covering them. Press a continuous strip of foil tape to all longitudinal seams along straight runs of duct. Insert two additional screws along the seam with equal spacing between the three screws.

Thin sheet metal is a popular choice for use in packaging because it is lightweight and takes up less space. Turn the screw at high speed on the end of a drill and bit while pushing it firmly against the. However finding a suitable fastening approach has not been easy. Some manufacturers recommend against using sheet metal screws to secure dryer duct sections because the screws collect lint.

Insert 1 2 inch self tapping sheet metal screws through metal ducts where the ends come together. The three screws will prevent the two ducts from moving and separating at the new seam. You can even use three sheet metal screws behind the first rib or two of the duct as long as you use mastic under the duct at the sheet metal connection. Insert a 1 2 inch long self tapping sheet metal screw at the location where the two ducts overlap to provide a solid connection.

Adhesives for example have been known to fail especially when heat or vibration are present. Add support straps or nylon ties to support the duct.