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SOLVED: What Is The Best Home Insulation Overall?

what is the best home insulation

What Is The Best Home Insulation Overall? 

In this article we aim to answer the age-old question: What Is The Best Home Insulation - Let's get right into it..

Installing insulation is one of the most energy efficient things you can do. However, if your current insulation is old and outdated, its performance will be greatly impaired-and so will your ability to save money.

With better insulation, you reduce your energy consumption, meaning that you contribute to the total carbon dioxide emissions being reduced, alongside your overall bills.

Nowadays, there are many different types of insulation ranging from recycled newspaper and sheep’s wool, to cotton and chemical foams. With that in mind, homeowners often want to know what is the best home insulation, and how it can help them long-term.

Usually, homeowners look at two aspects of the insulation: R-Value and cost. But in addition to those two aspects, you need to look at the benefits each one provides as well. Not all insulation is created equal, as the following article reveals…

Choosing Insulation: How To Calculate Costs

When you add insulation in your home, you need to take into consideration all of the areas you are insulating. Are you adding insulation just to the walls, just to the roof, or in the garage and so on?

That being said, most homeowners insulate previously built structures and their walls. The walls are the first area you need to consider, since you lose approximately 35% heat through uninsulated walls.

Crawl space insulation is different than regular walls, and it depends mostly on whether it is ventilated or not. Moisture has to be removed from the crawl space, prior to installing the insulation. The cost depends on the size of your crawl space.

Last, but not least, keeping an attic warm in the Winter is another thing to consider. Keeping the attic warm in Winter might be costly, especially if there is no insulation. The alternative is to wear warmer clothes, pay higher bills, and so on. With that in mind, insulation for the attic is the wiser choice.

That being said, let’s take a quick look at the cost of different insulation materials, and the returns they provide over time:

Insulation Option No.1: Spray Foam Insulation

Spray foam is an expansive material that seals all the gaps in your home. The cost is between £0.27 and £0.42 per board foot.

Of all the insulation materials, spray foam offers the highest R-value, and best insulation properties overall. In addition to this, spray foam can save you as much as £400 per year on your energy bills

Insulation Option No.2: Blown-In Insulation

Blown-in insulation (cellulose most often), is made from recycled newspapers, cardboard, and similar materials. You need to use a mechanical blower to fill the space.

Cellulose insulation is fire-proof, but there are many health issues attached to cellulose insulation. The cost is between £1200 and £1500 for a 1500 square foot home.

Insulation Option No.3: Fibreglass Batts

Last, but not least, we have fibreglass batts, one of the most inexpensive ways to insulate your home. But with such a cheap price, quality is inevitably compromised

Fiberglass has a low R-value, but is good for when you want to quickly insulate a home for a low cost. Of course, you cannot expect the same thermal efficiency. The price could vary from £200 to £400 for a 500 square foot area,

what is the best home insulation

What About R-Value?

As mentioned previously, the second aspect of what is the best home insulation concerns the R-value of the material. In layman’s terms, R-value is “the calculative method referring to thermal resistance”.

In theory, a higher R-value means more heat resistance, which means better insulation properties and qualities. All products have their R-value associated with them, and displayed prominently on the packaging.

What is the R-value you want to achieve, and what, realistically should you aim for? It really does depend on the climate you live in. For example, in a hot climate, an R-value of 30 is more than enough. However, if you live in a cold climate, you need an R-value of 49.

Here is the R-value of the materials we looked at before, so you can see how they compare:

  • Loose fibreglass has an R-value of 2.2 to 2.9 per inch
  • Batts fibreglass has an R-value of 2.9 to 3.8 per inch
  • Loose cellulose has  an R-value of between 3.1 and 3.8 per inch
  • Open cell spray foam has an R-value of 3.6 per inch
  • Closed cell spray foam has an R-value of between 6 and 7 per inch

Why Is Spray Foam The Best Insulation Overall?

With all things considered, we firmly believe that the answer to what is the best home insulation is spray foam. In addition to the highest R-value on the market, spray foam has many other benefits that will cut your costs, whilst increasing your overall level of comfort.

For starters, spray foam is the only insulation material that provides an airtight seal. All of the other insulation materials, including fibreglass and cellulose, often leave air gaps behind. Those air leaks contribute to heat loss, despite installing insulation.

But because of its expansive nature, spray foam fills all the gaps, holes, cracks, and cavities, accommodating hard-to-reach spaces with ease.

Spray foam also provides superior soundproofing properties as well. Thanks to its high R-value, and the expansive nature of the material, spray foam will prevent outside noise from penetrating through into the space inside.

An underrated aspect of spray foam is that it does not allow allergens to pass through, unlike alternatives, such as fibreglass.

Because of this, spray foam helps those with allergies and respiratory issues, by improving internal air quality immeasurably.

Last, but not least, because spray foam has the highest R-value, and offers an impressively airtight seal, over time, you receive substantial savings on your bills. According to some estimates, spray foam can reduce your energy bills by up to 50%.

Seeking out a form of insulation that stands the test of time? Unlike older, outdated insulation, spray foam performs for the life of the building. Start your journey to a premium performing home today, by calling 0800 1700 636, or simply clicking the button below!