We frequently encounter specific insulation issues in renovation projects that, once addressed, can dramatically improve your home’s energy performance. Here are a few common insulation issues that you should address in your home:
The Crawl Space Conundrum
We often find crawl spaces where insulation is improperly installed in the floor above, leading to significant problems. High moisture levels are a frequent culprit, causing insulation to pull away from the subfloor above, severely diminishing its effectiveness.
For optimal results, we recommend encapsulating the crawl space. This involves insulating both the walls and floor, combined with installing a robust vapor barrier. This strategy effectively manages moisture, prevents insulation degradation, and ensures your crawl space contributes positively to your home’s energy efficiency and healthy indoor air quality.
Attic — The Hidden Energy Drain
Another frequent discovery is an attic lacking sufficient insulation to meet current minimum energy code standards. This problem is often compounded by construction debris left on top of the insulation, which compresses it and drastically reduces its performance. Even if insulation is present, its quality and depth might not meet today’s code requirements.
Examples like these underscore a critical lesson: the quality of construction materials and their proper installation are paramount to achieving true energy efficiency. Investing in the right materials and ensuring correct application from the outset can prevent significant energy waste down the line.
Good, But Not Great: Room for Improvement
we do encounter insulation that is installed to a good depth for the age of the house, with proper vent baffles to keep it in place while allowing airflow. While this might seem adequate, it’s crucial to note that if it’s not airtight, it’s not performing at its peak potential. Even well-installed blown-fiber insulation can allow for air leakage, reducing its overall effectiveness.
While good depth and proper venting are essential, achieving an airtight seal between uninsulated and insulated spaces is key to maximizing insulation performance.
