I purchased an existing house this past year and of course got a home inspection by Benjamin Meredith of Building Knowledge prior to closing. He identified a list of things that needed to be adjusted, replaced, fixed, and monitored. As with any older home, it has issues and I certainly understood it would need some maintenance. On the top of the list Ben created for me was the heating and cooling system. The existing system was functioning, but not optimally. It was more than 15 years old (probably more than 20 years old) and nearing the end of its life. The system was using more energy than it should to barely keep up with comfort on moderate days.
We added a WiFi enabled control system that links to my phone allowing tracking and comfort adjustments easily from anywhere. The UV light kills biological contaminants in the air and keeps the house odor free. I am certainly happy to have invested in this heating / cooling system a few months ago that not only keeps my electric bills low and my house comfortable, but now provides knowledge I am doing everything I can to keep everyone as healthy as possible. Clean fresh air inside our homes is a must and this is a way to help achieve that goal.
This system also met Pearl Certification for the HVAC system which could improve resale value of the home. Pearl Certification is a national firm that provides third-party certification of high-performing homes: homes with “performance assets” that make them healthy, safe, comfortable, energy and water efficient.
If you are thinking through upgrades on your home right now, it might be time to consider upgrading your heating / cooling system to one that is efficient, keeps you comfortable, and cleans the air.
There are simple energy fixes for your home that you can do while staying at home for a few days. I do lots of energy audits and the most common challenge I find in almost every house is air leakage around and thru While each of these is a small hole in your thermal envelope, there are a lot of these small holes. Here is a thermal image of a typical outlet. In this image, white is warm and dark is cold air. This is an outlet in an exterior wall, but I also find this on interior walls.
You can see cold air coming around the decorative cover plate and through the outlets themselves.
It is easy to take the decorative plate off. Don’t touch the wires inside. You will want to use a silicone caulk to fix the gap. There is a plastic box that holds the outlet in place. The gap between the plastic box and the drywall / plaster is the leak. Simply fill the gap with caulk.
So this reduces the air flow but does not stop it completely. If you have any child protection plugs you can insert them into the outlets after reattaching the decorative plate. You can also order a pack of pre-cut insulation that is designed to go behind the decorative plate.
Once sealed, this hole in your drywall is no longer a source of air leaking into and out of your home. This will improve your indoor air quality and potentially reduce your monthly energy bills.
My goal in providing free energy audits has been to help people make their homes more comfortable, energy-efficient, and durable.
In 2016, I started offering free energy audits for anyone in the valley. I worked with HEC on those in the city of Harrisonburg to start with and on my own for those in the County. I wanted to help people understand their homes and businesses – the most complicated machines they will ever own. With the knowledge of how these machines run, these home and business owners (and many churches) could make changes to improve comfort, reduce energy, clean up indoor air quality, and make their homes more durable.
This morning I performed one of the last audits I will be able to do for some time – there’s just not time to run for office (www.hendricksforharrisonburg.com) and provide this service while being a single dad and business owner. Here are blog links that I hope will help you improve comfort and energy-efficiency without a full audit.
Molds can be found almost anywhere and can grow on most organic substances. They just need a moist area, a little oxygen, and it loves dark spaces. There are many types of mold and I have no basis to discuss which are toxic and which are not. We all react differently to different molds. It is also impossible to stop all mold and mold spores from existing in yourindoor living environment. The goal should not be mold clean-up, it should be controlling moisture in your spaceto prevent growth – then clean-up.
Most mold growth will occur from specific conditions – flood, roof leak, high humidity inside (unvented combustion appliances will encourage it), deferred maintenance, stagnant air, vented crawl spaces,leaks in duct work that is not insulated well, wrong sized HVAC systems, and almost always lack of proper ventilation. When mold growth happens in a space it can have health impacts on those occupying the space. However, it is very hard to tie health problems to a specific space, again, mold exists everywhere.
Some tips for clean-up that need to be followed after a moisture event are as follows:
Anything that has gotten wet needs to be dried within 24 – 48 hours, completely dried, or it should be removed not just cleaned.
Dehumidification should be used to keep humidity levels below 50% to dry out porous materials.
You should isolate the spaces while they are being cleaned to prevent cross contamination.
HVAC systems should not be operating during clean up.
Duct work should be cleaned as well as coils on the HVAC (the only EPA endorsed way to clean HVAC units that are contaminated is removal and replacement).
Proper ventilation should be installed and controlled by the HVAC system.
Cleanup recommendations from the EPA
The purpose of mold remediation is to remove the mold to prevent human exposure and damage to building materials and furnishings. It is necessary to clean up mold contamination, not just to kill the mold. Dead mold is still allergenic, and some dead molds are potentially toxic. The use of a biocide, such as chlorine bleach, is not recommended as a routine practice during mold remediation, although there may be instances where professional judgment may indicate its use (for example, when immune-compromised individuals are present). In most cases, it is not possible or desirable to sterilize an area; a background level of mold spores will remain in the air (roughly equivalent to or lower than the level in outside air). These spores will not grow if the moisture problem in the building has been resolved.
So, as you are working on cleaning up an area that has black stuff growing (again, I cannot tell you anything about mold so I will just say black stuff) make sure to take the proper health precautions during clean-up. Follow guidelines for removal of wet porous surfaces that are not dried completely quickly. Fix the cause of the problem, don’t just clean up the symptoms.
One of the most important things in life to achieve success is to surround yourself with honest hard-working people with a shared vision. This is critical not only in life, but also in construction. Having the right team in place for a complicated project with tight schedule goals the only way to deliver a complicated project on time and on budget. I absolutely think having an architect lead the planning process was critical (obviously I am biased). Our role has been to create base plans for everyone to work off of, establish the scope of problems that needed solutions, evaluate and offer solutions, and be a sounding board for client and contractors. We facilitated meetings, answered many questions, presented findings, offered advice, formed a team, and continue to process questions and information on a daily basis.
Including a mechanical engineer, Suter Engineering, and mechanical contractor, Excel HVAC, was a must to solve this building’s problems. Also, having the future general contractor on the design team also provided him time to be up to speed on the goals and challenges in advance of pricing the project. The pre-planning that was done with Herr & Co. during design also helped a lot also to set limits on construction to stay within budget. Jim and his team were able to walk the building, know the goals and challenges, and bring in the right team of experts to provide solutions. For instance, A-Able plumbing was able to solve a question about source of water infiltration in a basement wall – a pipe in the upstairs kitchen – prior to digging or rerouting on the exterior of the building. This put a plan in place prior to them showing up at the site saving time and money. Weaver’s flooringhelped guide the finish selections for flooring keeping us on budget and the right scope in play. We had lots of questions about durability and indoor environmental quality and they walked us through the best solutions. Mast landscapes and Maust Enterpriseshave been working together to efficiently remove landscaping that was in the way of new equipment or causing water issues. They have also worked together to provide needed drainage of rainwater away from the building. Someone has sent us plenty of rain so we could verify issues that needed to be addressed, thanks God. Valley Roofingcame through for us with a solution that gave the water protection I was looking for, but also saved the steeple that we had reluctantly planned to remove. Blosser lighting was able to find a solution to convert our existing (no longer available) sanctuary lights to LED. Copper Key has found and solved issues through the building to make us safer and to provide electric where it was needed for all our new heating and cooling systems. Schlabach drywallfound the most cost-effective high sound absorbing ceiling tiles to reduce the impact of changing carpeted spaces over to laminate flooring. I may have missed someone on the list. The point is we have a solid team of honest and hard-working folks making this project as smooth as possible. They are working in dirty conditions in a building with no air conditioning in the summer in Virginia. There have been no major tension and things have gone as smooth as can be expected on a construction site. Picking the right team was critical in this project as it is in all projects.
At this point, my volunteer work was becoming more than what I could give for a church renovation. I switched roles a bit and was hired as an architect to build a team of professionals to coordinate the design for our church renovation. We were given the air and surface test report which told us that almost all the duct work and heating / cooling units in the building had been compromised. Our team of designers started documenting all the leaks around the building. We not only had water coming in from the roof, but also leaking boiler pipes and water infiltrating the basement walls. We added Suter Engineering and Excel HVAC to our team to provide a solution to replace 100% of the heating and cooling systems. This solution would be a major expense, but the only method of treatment for mold that the EPA endorses is a full removal of the impacted equipment. We wanted to do all we could to solve this indoor environmental quality problem and it was a complicated solution. Suter and Excel were able to put together a plan and a budget to fix the mechanical systems in the building. They were also able to convert all heating / cooling systems to electric eliminating the need for natural gas for anything other than stove and water heating. This will allow our solar PV to supply most of our energy needs and for us to reduce our environmental footprint. While the mechanical system is the biggest part of the work that needed to be done, that is not the entire story for this church renovation.
Through the design process we were able to document almost all of the leaks and the causes. There were roof, flashing, and grade leaks / issues. There were gutter leaks and downspouts clogged. There were leaking boiler pipes and carbon filters. There were leaking drains and plumbing issues. From all the water issues in the building we also found drywall and insulation that needed to be replaced. One of the biggest, literally, problems we needed a solution for was our steeple was leaking. I presented the idea of removing it and adding a more traditional roof in place and to my surprise the congregation agreed to it. More on this decision later. The indoor fabric surfaces were impacted by mold growth and needed to be cleaned or replaced. This was also a good chance to update the warming kitchen and to add a needed family restroom. We added Herr and Co. to our design team. Bringing a contractor into the design phase is a good option to maximize the effectiveness of your team. They are able to guide and direct based on best practices in the field and to price the project as it is designed. They also offer a different perspective on solutions. This led to our ability to save the steeple!
