When it comes to insulating walls, the choice between R19 or R13 can be the difference between a well-insulated home that is energy efficient, and one that is not. So which is better: R13 or R19?
Here are some things to consider:
R-value: The R-value is a measure of how well insulation can resist heat flow. The greater the R-value, the more efficient the insulation. As mentioned, R19 has a higher R-value than R13 – meaning it can better resist heat flow.
Wall Construction: While it’s true that R19 has a higher R-value, it’s also important to consider the size of the wall cavities. R13 insulation is thinner and is typically used in walls with 2×4 studs. R19 insulation is thicker and is commonly used in walls with 2×6 studs. If you have a larger wall cavity, it’s important to use insulation that can adequately fill that space and maintain its insulating properties.
Budget: Of course, budget is always a factor. R19 insulation is more expensive than R13 – so you’ll need to weigh the cost-benefit for your specific situation.
Ultimately, the choice between R13 and R19 insulation will depend on a variety of factors – including your wall construction, budget, and overall energy efficiency goals. It’s always a good idea to consult with a professional who can help guide you through the decision-making process.