Diy Duct Work Attic Installing

Installing flexible duct insulated duct diy 1.

Diy duct work attic installing.

Supply air duct installation. Avoid any hot elements such as water heaters heater or stove exhausts or hot water pipes and electrical elements such as junction boxes or. On the floor cut in and attach the rectangular take offs to the front and rear of the plenum. 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.

If the air duct isn t long enough it is possible to add extra length. I use the caulking gun with air duct sealant to get back in the spaces it s hard to reach with the mastic. The attic ductwork is flex duct work. In this video i use mastic and air duct sealant t.

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. 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. Remove existing ductwork where needed. I ll show you how to get the job done right.

Place ducts on top of joists in a ceiling or attic. Take care not to place your duct work too near any strong sources of heat such as that in a hvac device and avoid curling the duct around a sharp point. Install dampers at the registers to adjust airflow. 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.

Raise the plenum up in place and attach with self tapping screws. I called out the original hvac company and they took a look and said they saw no water. The big advantage over a full rigid installation is sound control the installations are quieter than fully rigid ones. It was new when the ac was put in 7 years ago.

Do it yourself hvac. The first thing you want to do is take either air duct sealant or mastic and spread it around the take off. Each register should have its own damper that can be accessed for adjustment. Installing flexible or insulated duct is an easy diy project.