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Can Spray Foam Be Used To Insulate My Water Tank?By admin
Tuesday, 3 September 2019
When most of us think about insulation, we imagine the rolls of mineral wool insulation that is laid out on our loft floor. We may even think of spray foam insulation that is applied to the underside of our roof – but what about spray foam that is used to insulate our water tanks?
Is this possible and why would we even want to do this? What are the benefits of spray foam insulating our water tanks? It’s time to find out…
What Is Spray Foam Insulation?
Spray foam insulation is becoming increasingly popular in the UK and has been used in colder climate countries such as the US and Canada for many years.
It is created using a combination of two chemicals that are forced together under pressure and will expand to around 9 times their liquid state.This liquid foam can be used in awkward spots and will fill spaces that ordinary insulation cannot reach easily.
It comes in two main types: closed cell foam and open cell foam. The former is more dense and is perfect for additional structural support and for sound proofing. The latter has air bubbles and works well to insulate while still allowing the room to breathe.
Open cell insulation also completely eliminates air infiltration in every nook and cranny it’s applied in. Both types are usually very long lasting (upwards of 30 years) and are waterproof and very stable. Once the ‘curing’ process is complete, they do not release any chemicals.
In general, spray foam insulation is more expensive than other forms of insulation, but it is also known to do a more effective job and will save you more money in terms of energy efficiency.
Open celled foam insulation completely eliminates air infiltration in every area it's applied to-without compromising ventilation in the process
Can I Use Spray Foam On My Water Tank?
We all know that insulating a water tank can be a great deal and most energy suppliers and DIY stores will stock insulating tank blankets or jackets especially for this purpose.
These are designed to slip over the tank and offer a good level of insulation, but do not entirely cover the tank as they are a generic design. Getting a good fit can be tricky.
Spray foam insulating your tank will give a closely fitted layer of insulation to your tank – almost a second layer of tank that will give high levels of insulation. It will cover all of the tank, while leaving essential pipes and inspection panels free and open.
The spray foam will offer a close fitting insulation, but it will not affect the integrity of the tank and it is perfectly safe to use.
There are a number of benefits of using spray foam insulation on your water tank and many of them may surprise you, including the following:
Benefit No.1: It Saves Significant Space
One of the problems many people have with insulating jackets and blankets is that in a small airing cupboard or loft space, it can be difficult to gain access to the tank or to fit in the insulation material needed.
Spray foam can be applied using a small nozzle and requires a smaller layer – giving you more space back.
Benefit No.2: It’s Wonderfully Waterproof
Your water tank obviously contains water and even a small leak can cause all kinds of damage. Spray foam insulation is waterproof and will help to prevent small cracks and issues from getting worse and will prevent damage to the tank turning into a major leak.
Also standard insulation will become ineffective when it is wet and will need to be replaced.
Unlike traditional insulation methods, spray foam doesn't become ineffective when wet, ensuring its efficacy year after year
Benefit No.3: It Is Incredibly Energy Efficient
It is usually recommended that you insulate to a depth of 270mm with mineral wool to achieve a decent level of energy efficiency. Spray foam can achieve the same thermal level with just 100mm.
This will mean that your tank is less bulky, but also that the water inside remains warmer, and will take less energy to heat. Equally, for cold water tanks, the water will remain at an even temperature.
The Energy Saving Trust estimate that a standard insulation jacket on your hot water tank could save you as much as £20 every year. These savings will come from lowered electricity and gas bills for heating your hot water.
The fact that spray foam insulation is more thermally efficient, means that you could be saving even more.
Benefit No.4: It Prevents Frozen Pipes
One of the biggest causes of insurance call-outs in the Winter is water egress caused by burst pipes. It can cause huge amounts of damage to your home and you may not even notice it until it is too late.
Burst pipes are often caused by the pipes in your loft becoming frozen in very cold weather. Once this happens, the water inside them will expand, putting pressure on joints and leaving them vulnerable to splitting.
The pipes around your water tanks can be insulated at the same time as your main tank – ensuring that they stay at a more even temperature, and are less prone to this issue.
Everyone deserves a warm welcome home, and with spray foam insulation, you receive just that-plus some cuts to your costings to boot!
Benefit No.5: Your Hot Water Will Last Longer
We have all had the experience of getting into a shower and the hot water runs out. In some families this can happen after just one or two showers. The hotter your water is inside your hot water tank, the less of it will be needed to get a good shower temperature.
Additionally, good insulation will mean that your water will heat more quickly – meaning you won’t be left waiting for the water for that all important shower.
Benefit No.6: Your Tank May Last Longer
While hot water tanks should last many years, they do tend to fail eventually. A layer of spray foam insulation will protect your tank from knocks and corrosion.
This will mean that the chances of leaks and failure will be lessened, giving you more peace of mind. A tank can usually be patched or repaired, but a good layer of insulation will achieve this as well.
So Can Spray Foam be used to insulate my water tank? Well yes.... but
Moral Of The Story? Choose A Credible Contractor For Long-Term Peace Of Mind
Insulating your water tank with spray foam insulation is a specialist job and should only be carried out by a professional.
Ensuring that the spray foam does not enter working parts or cover over important vents and pipes is an essential part of the process of application.
For this reason always find a contractor who has done this before and make sure you follow up their reviews.
Insulating your water tank is a great idea and using spray foam is even better than the more conventional methods. If you want constant hot water and you don’t want to pay more than you have to, spray foam will get you the results you want. Call 0800 1700 636, or simply click the button below to get started today!
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