If you’ve ever lived in a historic home, you’ve likely noticed the level of comfort can change throughout different parts of the house. This can typically change throughout different times of the year depending on your climate. This is primarily due to excessive air leaks in the home’s enclosure. When we think of improving the home’s comfort, the HVAC system and insulation are the items that usually come to mind. However, the air leaking through the building’s enclosure is equally important, if not more so for these older historic homes.
Let’s start with some history of construction ideologies, processes and materials. The phrase “they don’t build houses like they used to” is absolutely true. Homes that were built during and before the early 1900s were built with a different mindset than mod
For those looking to improve building and HVAC performance, a blower door is a must-have. This tool measures and exposes air leaks in buildings, one of the most vital contributors to high construction quality and correct HVAC equipment sizing. The blower door test removes a lot of the guesswork for builders, HVAC contractors, and insulators. It is also mandatory for HERS Raters, energy auditors, and building science consultants. If you are using a blower door, it is clear you care about the quality of your work. Therefore, you are going to want the best product available to allow you to work smarter, not harder. When shopping for a blower door system, here are some questions to consider to ensure you are getting the most bang for your buck.
Beginning December of 2020, the Nashville Tennessee area will update its building code to the IECC 2018. This means a blower door and duct leakage test will be required for all residential new construction homes per the new code update. Are you ready to meet these new requirements?
A recent Retrotec webinar, “Duct Testing Best Practices,” walks through duct testing procedures relevant to those looking to begin testing in Tennessee. You can also see our latest blower door presentation: “Blower Door 101”, which covers the basics of setting up a blower door system and getting the results you
Article written by Sam Myers, Retrotec
When purchasing a home, the due diligence period is a dedicated amount of time where the seller takes the home off the market so the buyer can take time to have inspections completed to make sure everything is in working order. This typically starts by bringing in a home inspector, and sometimes a general contractor or engineer if structural items need a closer look. If the home has a swimming pool, a pool inspection is common as is a chimney inspection if the home has a fireplace. The same is true with HVAC and plumbing if the home inspector thinks a further look may be needed. But what about other items that will affect the new owner on a daily basis? Items such as comfort, indoor air quality, and energ
-article by Sam Myers, Retrotec
Reducing air leaks in duct systems plays an essential role to ensure efficient HVAC system operation. This keeps operating costs down and occupants comfortable. The duct tester equipment used to test for air leaks in duct work is made up of a calibrated fan, high precision manometer, tubing to connect the manometer to the fan, and flexible duct to connect the duct tester to the HVAC system. The technology applied to commercial duct testers has greatly improved over the past decade. What used to be a large blower bolted to a wheeled hand truck can now be easily carried by one worker in a case with a shoulder strap; all without sacrificing power. However, even with some of the most powerful duct testers out there, more fan power is needed for extremely large HVA
Yes, according to this high-performance builder, who uses it to constantly raise the quality bar
This is the 6th installment of a monthly column from Ben Walker, Co-CEO of Retrotec. Ben's column focuses on observations on the art and science of high-performance building and home testing.
Home builders are using blower doors
to go beyond code compliance
With codes and high-performance construction programs requiring airtightness testing, a small but growing cadre of home builders have been purchasing t
Blower-door assisted load calculations are boosting profits and customer satisfaction and reducing risk for forward-thinking contractors.
If you've been following the latest industry buzz you may have heard of HVAC 2.0 (formerly Home Performance 2.0). It's a real game changer that every HVAC contractor in the residential market needs to check out. Here's why.
The “2.0” suffix suggests an improvement to the status quo. That's certainly the case here. HVAC 2.0 is a new, consultative sales process designed to help contractors close more business at higher ticket prices, by helping customers solve their real comfort problems. And it's structured so that the initial consultation can be done effectively by an entry-level sales tech.
Posted: September 13, 2019||
Author: Sam Myers
Within the confines of the HVAC field, airflow behavior is one aspect that can be difficult to understand when it comes to proper duct system design and airflow measurement. The challenge of providing a visual display of an issue that is invisible to the naked eye is a regularity we face when working with clients, apprentices and students. Once a duct system is installed, we can use diagnostic tools such as flow hoods and duct testers to measure and expose air flow and leakage, then record our reading. We can also use thermal imagi
Starting in September of 2019, a duct leakage test will be required for all residential new construction homes that have ductwork outside of the conditioned space. This includes ducts located in vented crawlspaces, ventilated attics, and attached storage rooms that are not conditioned.
In many states, a certification of some type is typically required. However, in Virginia’s case, the tester’s ability to operate the equipment is to be determined by the AHJ (Authority Having Jurisdiction).
Luckily, Retrotec’s DucTester systems come with an online training module that provides the user with a Manufacturer’s Certification. This can be presented to building inspectors to provide proof that the tester is knowledgeable when it comes to testing ducts for leakage. This is unique only to the Retrotec brand of testing equipment.
A recent Retrotec webinar, “Duct Testing Best Practices,” walks through duct testin
This is the 3rd installment of a monthly column from Ben Walker, Co-CEO of Retrotec. Ben's column focuses on observations on the art and science of high-performance building and home testing.
As many as 30 million U.S. homes may have loose-fill attic insulation made from asbestos-contaminated Zonolite. Here's how to determine if a home has it and what to do if it does.