Key Takeaways
- Maryland does not specify R-value requirements for siding but enforces R-value standards for wall insulation.
- The 2012 International Energy Conservation Code (IECC) sets the minimum R-values for wall insulation in Maryland homes.
- Insulated siding reduces thermal bridging and improves wall insulation, which can help meet compliance requirements.
- Properly installed insulated siding can extend the lifespan of wall systems by protecting them from moisture and thermal stress.
- Elevated Remodeling offers Prodigy® insulated siding, with an R-value of up to 5.3.
R-Value and Its Importance in Maryland
R-value measures the effectiveness of insulation in restricting heat flow and maintaining energy efficiency in homes. The higher the R-value, the better the insulation’s performance.
Maryland enforces specific R-value requirements for walls through the 2012 IECC but does not have direct R-value mandates for siding. However, insulated siding complements wall insulation by reducing thermal bridging.
| At Elevated Remodeling we specialize in high-quality, energy-efficient replacement windows, doors, siding, and roofing solutions. Based in Pennsville Township, New Jersey, our company serves clients in New Jersey, Pennsylvania, Maryland, and Delaware. Get a Quote for Your Project |
Wall Insulation R-Value Requirements in Maryland
The 2012 IECC specifies that Maryland’s R-value requirements for walls vary by climate zone:
- Climate Zone 4 (Most of Maryland):
- Option 1: R-20 cavity insulation within walls
- Option 2: R-13 cavity insulation plus R-5 continuous insulation over the exterior
- Climate Zone 5 (Garrett County):
- Option 1: R-20 cavity insulation
- Option 2: R-13 cavity insulation plus R-5 continuous insulation
Recommended Insulation Levels for Retrofitting
| Area | Zone 4A and 4B | Zone 5 |
| Attic Insulation | R-60 if uninsulated; R-49 if 3–4 inches already exist | R-60 if uninsulated; R-49 if 3–4 inches already exist |
| Floor Insulation | R-19 | R-30 |
| Wall Insulation (Above Ground) | R-5 to R-10 sheathing beneath new siding (Uninsulated) R-10 sheathing beneath new siding (Insulated 2×4 Walls) | R-5 to R-10 sheathing beneath new siding (Uninsulated) R-10 sheathing beneath new siding (Insulated 2×4 Walls) |
| Basement/Crawlspace Walls | R-10 sheathing or R-13 batt | R-15 sheathing or R-19 batt |
The R-Value of Siding
While Maryland does not require specific R-values for siding, insulated siding can contribute to overall wall performance. Below are typical R-values for common siding materials:
- Insulated Vinyl Siding: R-2.0 to R-4.0, depending on brand and size
- Regular Vinyl Siding: R-0.61
- Fiber Cement: R-0.37
- Stucco: R-0.40
- Brick Veneer: R-0.44
- Stone Veneer: R-0.11
Choose Elevated Remodeling for Your Maryland Siding Insulation Project
At Elevated Remodeling, we provide high-quality siding insulation solutions that meet Maryland’s building requirements and improve energy efficiency. With thick EPS foam insulation designed to minimize heat transfer, our Prodigy® Next-Generation Insulated Siding has an R-value of up to 5.3.
Prodigy’s interlocking panel design forms a tight, weather-resistant seal, reducing the likelihood of air leaks and improving energy retention throughout the year.
Choosing Elevated Remodeling for your siding project means investing in quality craftsmanship and long-term energy savings. With our experience in Maryland’s climate and building codes, you can be assured that your home will remain efficient, durable, and comfortable.
For more information or to request a consultation, contact Elevated Remodeling at (800) 672-8519 or visit our website.
Frequently Asked Questions (FAQ)
What are R-values and their significance in Maryland?
R-values measure insulation’s resistance to heat flow. In Maryland, your walls, attics, and other areas must meet specific R-value requirements.
Are there specific R-value requirements for siding in Maryland?
Maryland does not have R-value requirements for siding but enforces R-value standards for wall insulation.
How does insulated siding improve home energy efficiency?
Insulated siding reduces thermal bridging, which occurs when heat bypasses insulation through materials like wall studs and leads to higher indoor temperatures.
What insulation levels are recommended for retrofitting homes in Maryland?
Maryland’s 2012 IECC recommends:
- Zone 4: Attic insulation of R-60 if uninsulated, R-49 if partially insulated; floor insulation R-19; wall insulation R-5 to R-10 beneath new siding.
- Zone 5: Same as Zone 4 for attic and floor; wall insulation requires R-10 sheathing beneath new siding.
Why choose Elevated Remodeling for your insulation project?
At Elevated Remodeling, we install Prodigy® Next-Generation Insulated Siding—designed to improve insulation and energy efficiency. Plus, it’s fade-resistant and long-lasting.
