Polystyrene Exterior Insulation Siding

We will be residing the cabin this summer and are wondering if adding 1 inch of xps rigid insulation on the exterior walls and walk out will cause any moisture issues.

Polystyrene exterior insulation siding.

Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products in a wide choice of sizes thicknesses and edges with a lifetime limited warranty for the life of the home or building. It also is the least expensive. Eps has the lowest average r value of the three most common types of rigid foam insulation around r 4 per inch. The products are easy to handle score cut and install and no special tools are needed.

You can learn more about these insulation types here. This is the same stuff your disposable coffee cup and is made out of and it s used to protect fragile items in their packaging. Polyisocyanurate molded expanded polystyrene meps and extruded expanded polystyrene xeps are common sheathing choices. Eps is used under roofing over foundation walls and beneath siding.

In addition flat foam insulations can help level out inconsistencies in the wall for a more perfect siding appearance. We realize that the mere mention of any kind of styrofoam or foam insulation thermalwall ph is made with eps expanded polystyrene can upset the sensibilities of hard core environmentalists but it is worth keeping in mind that eps insulation panels are mostly made of air it is recyclable the plastic content is a petroleum byproduct rather than primary material and it could be plant based if it weren t for cost and the carbon footprint of doing so and it works well when you use it. Expanded polystyrene eps eps is the insulation used most widely in insulated concrete forms and structural insulated panels sips. The most popular flat foam insulation products used in remodeling are made of expanded polystyrene eps extruded polystyrene xps and graphite polystyrene gps.

Foam sheathing is fastened to the structural sheathing or framing with broad head nails wide plastic washers and or adhesive caulk that is compatible with the foam. The upper part of the cabin has standard batting and no form of exterior insulation under the siding. This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Expanded or styrofoam insulation is a budget friendly option while extruded insulation has great water resistance and is ideal for use in areas like crawl spaces.

The lower level has 2 in of xps rigid foam insulation on the interior walls. For nearly 25 years pft s insulation solutions have made homes energy efficient durable and comfortable.