Builders Studio

5401 W. Grand River Ave.
Lansing, MI 48906
517-256-4167  MAP


1191 E. Grand River Ave.
Williamston, MI 48895
517-655-4641  MAP


5401 W. Grand River Ave.
Lansing, MI 48906
517-321-7766  MAP

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Mon-Fri: 8 a.m. - 5 p.m.
Sat: Closed
Sun: Closed
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Rboard Rigid Foam Insulation - Atlas


Rboard Rigid Foam Insulation

There are many different ways to go when it comes to wall insulation, but if you’re looking for an environmental-friendly option, Polyisocyanurate (polyiso) is the best option. The Atlas Rboard® rigid wall insulation board is a closed cell polyisocyanurate foam core, faced with a non-reflective coated glass-mat facer on both sides.

Wall sheathing is suitable for a variety of continuous insulation (CI) applications. It’s a flexible option that can be used with concrete, wood, wood stud, steel stud, air and vapor barrier membranes, and glass-mat gypsum. Making Atlas rigid insulation the perfect selection of wall sheathing for nearly any project.

Rboard® combines high R-value, enhanced durability from two coated glass-mat facers, and water resistive attributes in a high performance rigid insulation board. This energy efficient benefit provided by rigid insulation will ensure temperature control, saving you from unnecessary heat loss.

Atlas polyiso rigid insulation has been tested for VOC and formaldehyde emissions, in which reported emissions were below the maximum emission levels allowed under both the GREEN-GUARD and GREENGUARD Schools and Children criteria. These tests confirm that Atlas polyiso insulation systems are all very low-emitting products, making it one of the best environmental-friendly wall sheathing options as previously mentioned. It is also an ideal way to go for any-one looking to reduce their carbon footprint or fulfill a “go green” initiative.



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MPC Cashway Lumber Michigan is family-owned and has been serving the Lansing area for 50 years.  We carry a wide variety of building supplies for projects large or small.  Whether you are building a home, polebarn, deck or remodeling a kitchen, MPC has a knowledgeable staff that can guide you through your project and help you find just what you need.