Polyiso Foam Board Rigid Insulation Johns Manville Polyiso foam sheathing insulation boards consist of a uniform closed-cell polyisocyanurate foam core and provide one of the highest R-values per inch of any rigid insulation. Polyiso can be used as a continuous layer of insulation on the exterior of the wall to reduce thermal bridging and improve energy efficiency. You can leave it exposed as an interior finish or cover it with your finish of choice on the interior or exterior of the wall assembly. Can be used at as your AIR BARRIER or WATER RESISTIVE BARRIER or VAPOR CONTROL LAYER at 1” thickness. Easy to install and cut. With an R-value of 6.5 per inch, Polyiso will give you the best R-value per inch of any product currently available. – – Ask us how you can improve R-Values by introducing the Reflective Air Space Gap!

XPS Foam Board Rigid Insulation Extruded Polystyrene (XPS) Rigid Foam Insulation is a closed-cell, moisture-resistant rigid foam board well suited to meet the needs for a wide variety of residential and commercial construction applications. Applications include continuous exterior insulation, below grade, cavity insulation and much more. It is rated R5 per inch.


Reliable Technical Support
We have the expertise on our staff and in our network to provide fast and responsive advice for pre-job planning, job detailing, plan takeoffs, jobsite demos, and site mock-ups. We support everything we offer and are a ready resource for building envelope guidance and needs!

Customization + Specialty Items
Unique circumstances call for specialty items or order customization? No problem. Just contact us.

Needed Accessories
Don’t forget the tape. We are your convenient source for everything needed to insulate and air seal your project.