Basements can be a significant source of energy loss in homes, particularly in colder climates like Michigan. By implementing energy-efficient basement remodel and energy-efficient basement finishing, homeowners can save on utility bills while enhancing comfort with the added benefit of more usable square footage to their home. Here are a few effective strategies to make your basement more energy-efficient:
- Insulate Rim Joists
According to the U.S. Department of Energy, rim joists (the edges of the floor framing that sit above the foundation) are a common area for energy loss, accounting for up to 30% of a home's heating energy loss.
What may be easily overlooked when considering the finishing of your basement, this important detail should always be addressed before you have sealed everything in with drywall or a drop ceiling.
Remedy: Insulate rim joists with mineral wool insulation at a minimum if working with a tight budget. The best option which tackles air sealing, bug infiltration, and energy loss would be utilizing spray foam insulation to seal off your rim joists. This not only helps to reduce heat loss but also prevents cold drafts from seeping into the living space above through the air sealing properties of spray foam insulation.
When factoring in your budget for basement finishing and basement remodeling, start with including sealing your rim joists first and move onto finishes after. Once you have finished your basement it will be very costly and messy to go back later and tackle this very important energy saving, bug blocking, and comfort creating detail!
- Insulate Basement Walls
The Department of Energy also notes that uninsulated basement walls can lose significant heat. An uninsulated basement wall can lose about 15% of your home's total heat, leading to increased heating costs.
When finishing your basement, it is best to approach this space from the standpoint of your entire building envelope. Make sure you factor in the energy performance of your basement into the overall performance of your home and then consider the finishes that will create a space that flows well with the 1st floor and onward.
Finishes can be added and adjusted without much disruption to the rest of the home over time if your budget requires it. Energy efficient additions to your basement remodel or basement finish should be completed before wall finishes are hung so as to avoid big messes and massive disruptions later to tackle issues that can arise from a poor performing basement finish.
Tip: Consider insulating basement walls using mineral wool or fiberglass batts if working with a tight budget. If you would like the best performance that will help provide waterproofing and racking strength to your foundation walls, consider closed cell insulation. These additions will help maintain a consistent temperature in your basement and improve overall energy efficiency. (If going with a moisture sealing insulation like Closed Cell Foam insulation, overall dampness will be tackled at the same time)
- Upgrade Windows
Tip: Replace old windows with energy-efficient models that feature double or triple glazing. Look for windows with a low U-factor and a low Solar Heat Gain Coefficient (SHGC). Proper sealing around windows can also prevent air leaks. A great air sealing option would be replacing basement windows with Glass Block so you keep the natural light coming all the while removing a moving part that can allow air infiltration over time.
- Install an Energy-Efficient HVAC System
Tip: If your basement has its own heating and cooling system, upgrade to an energy-efficient model. Consider using a ductless mini-split system for more targeted heating and cooling, which can reduce energy usage.
- Seal Air Leaks
Air leakage can significantly increase heating and cooling costs. The Energy Information Administration (EIA) states that sealing air leaks can improve energy efficiency by up to 20%.
Tip: Conduct a thorough inspection for air leaks around windows, doors, and plumbing penetrations. Use caulk, weatherstripping, or expanding foam to seal any gaps.
- Use Energy-Efficient Lighting
Tip: Replace incandescent bulbs with LED lighting in the basement. LEDs consume up to 75% less energy and last significantly longer, reducing both energy bills and replacement costs.
- Consider a Dehumidifier
Tip: Basements can be prone to humidity, which can make them feel colder and less comfortable. An energy-efficient dehumidifier can help regulate moisture levels, making the space more comfortable and potentially reducing the load on your HVAC system.
- Install a Smart Thermostat
Tip: A smart thermostat allows for better control of the heating and cooling schedule, adapting to your lifestyle. This can help minimize energy usage when the space isn’t in use.
Conclusion
By implementing these energy-efficient strategies, homeowners in Michigan can transform their basements into comfortable, cost-effective spaces. Not only do these improvements help in reducing utility bills, but they also contribute to a more sustainable and eco-friendly home. Investing in insulation, energy-efficient windows, and modern HVAC systems can lead to significant savings over time.