What type of insulation is polyiso?

What type of insulation is polyiso?

rigid foam board insulation
Polyisocyanurate (Polyiso) is a closed-cell, rigid foam board insulation that is bonded to facers on both sides, which are composed of various organic and inorganic materials. Polyiso is used in roof, wall, ceiling and specialty applications within commercial and residential buildings of all types.

What is the R-value for polyiso?

For the R-value of polyiso wall insulation, a full thickness, 180 day aged value is recommended. Foilfaced polyiso has an R-value of about 6.5 per inch and permeability faced polyiso wall insulation has an R-value of around 6.0 per inch.

What is the R-value of 1 inch polyiso?

R-Value Chart for EnerfoilTM Rigid Foam Faced Insulation

Thickness (Inches) R-value (in I-P/Imperial) RSI (R-value in Metric)
0.75 4.5 0.81
1.0 6.2 1.08
1.5 9.3 1.62
2.0 12.4 2.16

What is faced polyisocyanurate?

Polyiso is a rigid foam insulation used in more than 70% of commercial roof construction and offers a continuous insulation solution for commercial and residential wall assemblies. Facers and facing materials serve a variety of functions in the production and use of polyiso insulation.

Is polyiso insulation good?

Polyisocyanurate (Polyiso) insulation is an excellent choice for a variety of renovation applications because of its excellent energy conserving qualities. Common construction applications require compressive strengths adequate for polyisocyanurate to maintain its shape during installation, as well as during use.

Is polyiso insulation safe?

As an insulation it is non-toxic, and unlike foam products there are no blowing agents that will off-gas into your home.

How thick is R25 rigid insulation?

With an R-value of 13.1 for a 2″ thick sheet only two 2″ sheets are required to achieve R-25. 2. Extruded polystyrene or XPS (foam is usually pink or blue) XPS has an R-value of 5 per inch of thickness requiring 5″ of insulation to achieve R-25.

Is polyisocyanurate insulation waterproof?

Polyiso is a rigid foam board insulation used for roofing and for insulating walls and ceilings. This creates its closed-cell structure and makes polyiso exceptionally waterproof.

Can polyiso insulation be used inside?

Insulating Attics With Polyiso Foam When turning an attic into a living space, one can place Polyiso on the interior over the studs before installing gypsum board. It can also be practical to fill the cavities with polyiso insulation.