Diy Duct Work Attic Installing

Run the new flexible air duct under the house from the floor return to the underside of the air handler and attach to the metal vent box or plenum image 1.

Diy duct work attic installing.

On the floor cut in and attach the rectangular take offs to the front and rear of the plenum. Install dampers at the registers to adjust airflow. Avoid any hot elements such as water heaters heater or stove exhausts or hot water pipes and electrical elements such as junction boxes or. Each register should have its own damper that can be accessed for adjustment.

Installing flexible duct insulated duct diy 1. Place ducts on top of joists in a ceiling or attic. If those dampers can t be accessed from below you ll want to install them close enough to the register so that you can reach them through the register opening. The big advantage over a full rigid installation is sound control the installations are quieter than fully rigid ones.

If the air duct isn t long enough it is possible to add extra length. The first thing you want to do is take either air duct sealant or mastic and spread it around the take off. Recently i had another hvac company come out and put in a new bathroom vent and they told me they believed the duct work was full of water. In this video i use mastic and air duct sealant t.

The attic ductwork is flex duct work. Installing flexible or insulated duct is an easy diy project. I ll show you how to get the job done right. Supply air duct installation.

I called out the original hvac company and they took a look and said they saw no water. Do it yourself hvac. Raise the plenum up in place and attach with self tapping screws. It was new when the ac was put in 7 years ago.

Adding heat runs in a basement may change the airflow in the ductwork going to other rooms. Remove existing ductwork where needed. Step 2 installing the ductwork once you have an idea of where the ductwork should go start with the plenum and screw that into position using duct brackets and suitable screws. The trick to getting these installations right is to use rigid ductwork for all deviations from straight then pull the ductwork taut between the two ends which now point towards each other.