What is ISO foam board?
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.
Which foam board insulation is best?
Foam board made from polyisocyanurate (polyiso) generally offers the best insulation capacity and 6.5 per inch. Water is the primary “blowing agent,” making it one of the most environmentally-friendly foams used.
What is the R-value of foam board insulation?
What is the R-value of foam board insulation? Foam board insulation R-value varies based on type but is anywhere from 3.6 per inch of insulation thickness to 8.0. The types of foam board insulation include polyurethane, polyisocyanurate, extruded polystyrene foam, and expanded polystyrene foam.
What is the R value of ISO board?
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.
Is polystyrene safe for insulation?
Lightweight polystyrene foam provides excellent thermal insulation in numerous applications, such as building walls and roofing, refrigerators and freezers, and industrial cold storage facilities. Polystyrene insulation is inert, durable and resistant to water damage.
What is foam board insulation used for?
Foam board can be used to insulate any exposed cavity in your home from the top to the bottom, and even the walls if you are remodeling and the drywall is down. It can also be installed in the open cavities of your pole barn.
What thickness insulation board should I use?
To achieve this, you should insulate your flat roof with insulation boards totalling around 150mm thickness. This is done with a layer of ca. 100mm insulation laid over the deck, and a further 50mm of insulation fitted between the roof joists, immediately below the deck.
What is the R value of 1.5 ISO board?
At one inch thickness, EnerfoilTM achieves a 6.2 R-Value, or a 1.08 RSI….R-Value Chart for EnerfoilTM Rigid Foam Faced Insulation.
| Thickness (Inches) | R-value (in I-P/Imperial) | RSI (R-value in Metric) |
|---|---|---|
| 1.0 | 6.2 | 1.08 |
| 1.5 | 9.3 | 1.62 |
| 2.0 | 12.4 | 2.16 |
What is the R value of 3 inch foam board?
This product typically has an R value of 3.6 to 4.0 per inch of thickness.
Which is the best type of foam insulation?
Polyisocyanurate, also referred to as PIR , polyiso, or ISO, has the highest R-value of any rigid foam board insulation commercially available. It comes with a variety of backers (foil, fiberglass mat, vinyl, and paper), and is very similar to the polyurethane used by spray foam contractors.
Where can I get foam insulation for free?
Foam Board Insulation – Insulation – The Home Depot Get free shipping on qualified Foam Board Insulation or Buy Online Pick Up in Store today in the Building Materials Department. #1 Home Improvement Retailer Store Finder
What kind of backers do you use for foam insulation?
It comes with a variety of backers (foil, fiberglass mat, vinyl, and paper), and is very similar to the polyurethane used by spray foam contractors. It is best suited for use in walls, ceilings, and roofs where high R-values are desired in a limited space.
What is the thickness of Firestone ISO 95 insulation?
Standard flat Firestone ISO 95+ Insulation is available in board sizes of 4′ x 4′ and 4′ x 8′ and in thicknesses from 0.5″ to 4.5″ subject to availability. When a substrate slope will not permit efficient drainage, Firestone tapered ISO 95+ polyiso insulation provides an effective and economical solution.