Which Insulation Is Better Fiberglass Or Polystyrene?

Is spray in foam insulation worth it?

Spray foam insulation is great for hard-to-reach or oddly shaped spaces.

However, the longevity and higher R-value of spray foam insulation make it well worth the cost in the long run, as you will have lower heating bills due to decreased cold air and will not need to replace or add new insulation repeatedly..

How dangerous is insulation?

There is no evidence currently of long-term damage from inhaling fiberglass particles, and workers who come into regular contact with fiberglass insulation are not considered to be at any higher risk of lung and breathing problems, especially if they wear proper safety attire.

How much does it cost to insulate a 2000 sq ft house?

Cost: The average cost per square foot is between $0.64 – $1.19. So, for a 500 square foot area, your estimate will vary between $145 to $200, if you do it yourself. For a professional job, add between $150 to $300 for labor, and you’re looking at around $300 to $500 for 6 hours of work.

Where should you not use spray foam insulation?

When NOT to Use Spray Foam InsulationFor areas that are too close to electrical boxes:For areas too close to ceiling light boxes:Open-cell spray foam on your roof:For closed-cavity spaces:If you have a history of skin, respiratory, or asthma problems:

How long does polystyrene insulation last?

It is available either as EPS (Expanded Polystyrene, produced from polystyrene beads) or as XPS (directly Extruded Polystyrene). The durable panels achieve optimum levels of energy efficiency and provide constant insulation over their 50 year lifespan.

Can I use polystyrene for roof insulation?

You can use batts, polystyrene slabs, expanded polystyrene or spray foam to insulate your roof or loft space. … One of the advantages of warm loft insulation is that it is ideal for a flat roof. This is because there are problems with condensation.

Which is better foam board or fiberglass insulation?

Foam board insulation is a great alternative to the very common fiberglass batt insulation that is in most of our homes. It has a higher R-Value per inch of thickness, it’s resistant to moisture and is easy to work with.

Does polystyrene make good insulation?

Polystyrene is a great thermal insulator, and can achieve excellent R value ratings at a given thickness for EPS, and even higher ratings for XPS. XPS polystyrene foam is more effective due to its dense structure and excellent moisture resistance.

What is the best insulation for exterior walls?

Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces. See the Department of Energy’s (DOE) ranges for recommended levels of insulation below.

Why is fiberglass itchy?

Causes of Itchiness from Insulation Coming into contact with fiberglass insulation material can cause itchiness on your skin. The tiny fibers of glass from the insulation wool can irritate your eyes and your skin. Too much contact with fiberglass can result in irritant contact dermatitis or skin inflammation.

What are the pros and cons of spray foam insulation?

List of the Cons of Spray Foam InsulationSpray foam insulation does not always fill every possible cavity. … Spray foam insulation might encourage water damage for some homeowners. … Spray foam insulation can sometimes shrink. … Spray foam insulation requires a lot of experience to get it right.More items…•

How do I choose insulation?

Manufacturers determine the value by the R-value or number; the higher the R-value, the better the insulation works. Calculate additional insulation needed. Measure the depth of your current insulation. R-38 is the industry standard, and the minimum thickness for R-38 is 12 inches.

What is the thinnest insulation with the highest R value?

Aerogel insulation offers the highest R-value of any insulating material at less weight and thickness—ideal for construction, refineries, pipelines, and thin-gap thermal barriers.

Is polystyrene insulation a fire hazard?

Branded polystyrene insulation boards contain a fire retardant additive, and do not present an undue fire hazard when correctly installed. Non-branded polystyrene boards may present an increased fire risk.

Why is fiberglass a good insulator?

How Fiberglass Insulation Works. Fiberglass as an insulator slows the spread of heat, cold, and sound in structures. The material does this by trapping pockets of air, keeping rooms warm in the winter and cooler in the summer, according to the International Association of Certified Home Inspectors (InterNACHI).

Which type of insulation is most effective?

Aerogel is more expensive, but definitely the best type of insulation. Fiberglass is cheap, but requires careful handling. Mineral wool is effective, but not fire resistant. Cellulose is fire resistant, eco-friendly, and effective, but hard to apply.

Is Fiberglass The best insulation?

One of its key advantages is value. Fiberglass insulation has a lower installed price than many other types of insulating materials and, for equivalent R-Value performance (i.e., thermal resistance), it is generally the most cost-effective option when compared to cellulose or sprayed foam insulation systems.

What are the disadvantages of spray foam insulation?

Below we are going to list the most common problems with using spray foam insulation in your home’s attic or in any area inside of your home.Placement Errors During Installation. … Potentially Attracts Water Damage. … The Material May Shrink Overtime. … Long Dry and Cure Time.