Lower Energy Bills with Professional Insulation
Attic Insulation & Blown-in Cellulose Solutions
Is Your Attic Costing You Money?
Improve comfort, reduce energy bills , and stop heat loss with professional attic insulation installed by a local, family-owned company.
Our experienced team has over 50 years combined experience installing insulation in Kalamazoo, MI.
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Why Attic Insulation and Ventilation Matter In Southwest MI.
Proper insulation helps keep your home warm in winter and cool in summer.
Attic Insulation Calculator
Estimate how much insulation your attic may need for better comfort and energy efficiency in Southwest Michigan.
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R-Value Insulation Guide
Climate Zone 5 • SW Michigan (Typical Code Targets)
| Area | Typical Minimum R-Value | Notes |
|---|---|---|
|
Attic / Ceiling Unfinished attic space | R-49 | Air seal first for best performance. |
|
Exterior Walls Wood-framed 2×4 / 2×6 | R-20 | Alt common path: R-13 + R-5 continuous. |
|
Mass Walls Concrete / brick / CMU | R-13 | May vary by % of wall above grade. |
|
Floor Over unconditioned space | R-30 | Band/rim joists matter a lot here. |
|
Basement Walls Below grade | R-15 to R-19 | Continuous insulation commonly used. |
|
Crawl Space Walls Vented or unvented | R-15 to R-19 | Best results when sealed + conditioned. |
|
Slab Edge Heated slab (where required) | R-10 | Often for a specified depth at perimeter. |
Greenshield Insulation is a trusted, locally owned insulation contractor based in Mattawan, Michigan, proudly serving Kalamazoo County, Van Buren County, and surrounding areas. We specialize in high-performance insulation solutions for residential, commercial, and agricultural properties — including spray foam insulation, blown-in insulation, attic insulation, and pole barn insulation. Our team is committed to helping homeowners and builders improve energy efficiency, indoor comfort, and long-term savings through expert installation and top-tier materials. With fast response times, free onsite estimates, and a dedication to clean, professional workmanship, Greenshield Insulation is your reliable partner for a warmer, more efficient property.
