The attic ductwork is flex duct work.
Flexible ac ducts in attic.
In homes older than 20 years duct tape may have been used as a sealer.
It was new when the ac was put in 7 years ago.
Item 1790033 model 1790033.
If you have central heating and or air conditioning in your home the warm or cool air is delivered to each room through a system of connected ducts and vents.
Sometimes the best route for a flexible duct run is up and over an obstruction.
Here are the itemized costs for the most common types of ductwork and supplies needed to complete installation.
But without proper support ducts can develops sags or kinks that reduce airflow 4a 4b.
This additional insulation provides greater thermal efficiency to save energy.
Cost of installation supplies.
I called out the original hvac company and they took a look and said they saw no water.
I live in montreal and had a lennox air conditioner and ducts installed in the attic.
If your ductwork is not properly sealed every time the hvac unit kicks on you are throwing money out the window by heating and cooling the attic.
I ve written a lot about duct problems especially those in flex duct because they re so abundant.
1 10 5 25 per foot insulated flexible duct 4 to 16 diameters used as branches or in radial duct attic systems 2 30 13 00 per foot round and oval sheet metal duct 3 to 8 diameters typically used for trunks in small homes and.
Lambro rigiflex 4 in x 96 in aluminum semi rigid flexible duct.
The air ducts for a central hvac systems are typically located above a home in the attic or upper crawl space or underneath a home in the space between the foundation and the floor so.
To prevent problems use saddles or straps to support at regular intervals 4c 4d follow the manufacturer s instructions but in case they get lost here is a list of best practices for.
Insulated flexible duct r8 silver jacket is used in standard heating and air conditioning hvac systems and some venting applications.
I was wondering is there any figures on the expected energy temp lose.
My answer was no but that we need better quality control.
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.
What i ve observed attic temp 50c vent temp 21c attic temp 37c vent temp 18c attic temp 25c vent temp 13c not sure what the r value off flexible duct or main metal duct is.
The duct has r8 insulation which contains 50 more insulation than the standard r4 2 product.
A couple of years ago i even wrote an article about whether or not flex duct should be banned.
Arizona home performance standards require that every flex connection be sealed with mastic for a 50 year plus lifespan.
