Would you spend $14 to save yourself Hundreds of $ over the course of a year. Here's how...
After recently completing the EcoBroker Designation I became increasingly interested in tightening my home's envelope. So I decided to crawl under my house to check out the HVAC ductwork to see just how well it was installed.
Before I go any further- let me give you a little background on my house... I live a basic 3,000 Sq ft transitional built in 1999. It's like every other neighborhood that has sprang up over the past decade. One would think a $200k house(in 1999) would be built pretty well.
What I found in my crawl space made me furious. Ive been under the house several times- but I never really paid much attention to the ductwork connections. One of my ducts was barely attached- the duct was just fitted to the boot with nothing holding it. Before I went under I turned the air on so I could feel leaks. Each of my ducts were ill fitted to the boots and EVERY ONE had leaks. I could literally feel cold air escaping from each duct and junction box.
The fix was simple- I picked up some Nashua Aluminum tape from Home Depot for $14. And all I had to do was wrap the flexible duct one time with the tape- then add a second piece around each attaching the duct to the subfloor...making sure that I sealed the duct completely to the subfloor. It may take a little more tape for different boots but the point is to seal the duct completely. After the tape job was complete- I no longer felt cold air.
I've never checked behind my HVAC contractor when they do installs on renovations. But you can bet I'll be better prepared to check this going forward. I recommend you check your own ductwork... there are literally hundreds of $ of cold air escaping those ducts. For $14 and 30 minutes- you can stop the leaks.