Closed cell spray foam removal is a problem for many homeowners, landlords and people selling properties in the UK. This type of insulation was meant to save energy. It has become a major obstacle for people trying to sell their properties or get a mortgage. If your loft or roof has this type of insulation you need to know what to do before you put your property on the market or try to get a loan.
This guide will tell you everything you need to know about closed cell spray foam insulation. You will learn what it is, why it causes problems, how professionals remove it safely, how much it costs and when you should take action.
What is Cell Spray Foam Insulation?
Closed cell spray foam insulation is a type of insulation that is applied as a liquid and then expands and hardens when it comes into contact with surfaces. It sticks strongly to the wooden beams in your roof which makes it very hard to remove. This type of insulation is different from cell foam, which is softer and more flexible. Closed cell foam creates a seal that keeps air and moisture out which is what makes it so hard to remove.
The reason closed cell foam removal is so difficult is that it sticks strongly to the wooden beams. Removing it without damaging the wood requires skills, tools and experience. This is why it is more expensive to remove cell foam than open cell foam.
Why Does Closed Cell Spray Foam Cause Problems?
There are problems with closed cell spray foam insulation. Many lenders in the UK will not give mortgages to people who have this type of insulation in their roofs. This is because the Royal Institution of Chartered Surveyors and the UK Finance trade body have said that spray foam is a risk factor. When a surveyor sees spray foam they will often say that the property is not suitable for a mortgage until the foam is removed. This causes problems for people who are trying to buy or sell properties. It can also cause problems for landlords who want to remortgage or release equity from their properties. You can look at the guidance from the Royal Institution of Chartered Surveyors on their website.
Closed cell foam can also cause damage to the wooden beams in your roof. It can trap moisture against the wood, which can cause rot, mold and structural weakness. This damage may not be visible until the foam is removed. Many homeowners do not find out about this damage until they have a survey done. Some insurance companies also treat spray foam as a change to the property’s structure. This can affect the validity of your insurance policy. Make it harder to get a new policy.
When Should You Remove Closed Cell Spray Foam Insulation?
- You should consider removing cell spray foam insulation if:
- A lender or surveyor has said that the foam is a problem
- You are trying to sell your property
- You have seen patches, a musty smell or mold in your loft
- Your roof has been re-felted or re-tiled. The foam is now compromised
- You are planning to convert your loft or do work on your roof
- The foam has been in place for over ten years without being inspected
If any of these things apply to you it is an idea to take action early to protect your property’s value and structure. You can contact Elite Spray Foam Insulation Removal for an assessment of your property.
The Closed Cell Spray Foam Removal Process
Removing closed cell spray foam insulation is a process that requires special skills and tools. It is not an idea to try to do it yourself as you could damage the wooden beams in your roof. Here is what the process typically involves:
1. Assessment: A specialist comes to your property to assess the type of foam its condition and the extent of the coverage. They will also check for any damage.
2. Protection: The work area is prepared and protected before the removal starts. This includes laying down sheeting and using personal protective equipment.
3. Mechanical Removal: Special tools are used to break the foam from the wooden beams. This process is slow and labor-intensive as each beam must be treated carefully to avoid damage.
4. Timber Assessment and Treatment: Once the foam is removed the wooden beams are assessed for rot, mold or structural weakness. If damage is found the contractor will advise on treatment, repair or replacement.
5. Waste Disposal: The removed foam is disposed of in accordance with waste regulations.
6. Replacement Insulation: New insulation is installed to meet building regulation standards.
The Cost of Closed Cell Spray Foam Removal
The cost of removing cell spray foam insulation varies depending on several factors, including the size of your property, the thickness of the foam and the condition of the underlying timbers. As a guide the cost can range from £1,500 to £6,000 or more for a standard semi-detached or detached property.
It is an idea to get a written quote from a contractor before the work starts. Be wary of contractors who offer fixed prices without visiting your property as the condition of the foam can vary greatly.
Closed Cell vs Open Cell Foam Removal
There are some differences between removing closed cell foam and open cell foam. Closed cell foam is more difficult to remove and requires tools and techniques. It is also more expensive to remove. Here is a comparison of the two types of foam removal:
- Difficulty: Closed cell foam is more difficult to remove
- Tools: Closed cell foam requires mechanical tools
- Risk to Timber: Closed cell foam is more likely to damage the timber if not removed carefully
- Cost: Closed cell foam is more expensive to remove
- Time: Closed cell foam removal takes longer
How to Choose a Spray Foam Removal Contractor
Not all insulation removal companies have experience with cell foam. When choosing a contractor make sure they:
- Offer a -removal survey
- Have experience with cell foam removal
- Use protective equipment and ventilation equipment
- Provide a written scope of works and waste disposal confirmation
- Can advise on replacement insulation options
Ask for references or case studies from properties. A reputable contractor will provide these without hesitation.
Eco-Friendly and Safe Removal Methods
Some contractors are now using dry ice blasting to remove cell foam. This method is effective. Produces no secondary waste stream. It is an option for environmentally conscious property owners. If chemical solvents are used make sure the contractor uses products that comply with UK COSHH regulations. You can check the requirements on the Health and Safety Executive website. If you own a property in South West England and are dealing with spray foam insulation issues Elite Spray Foam Insulation Removal can help. They offer:
- initial consultations
- Full pre-removal surveys
- Certified cell foam removal
- Timber inspection and treatment
- Replacement insulation advice
- Book your survey today.
Frequently Asked Questions
Can I remove closed cell spray foam myself?
No, it is not recommended. The foam bonds tightly, to the timber and improper removal can cause damage.
Will removing spray foam make my property mortgageable ?
In any case, yes. Once the foam is removed lenders will typically reinstate mortgage terms.
How long does closed cell foam removal take?
For a semi-detached property it typically takes two to four days.
Does spray foam removal damage the roof?
If done correctly it should not damage the roof structure. However if the foam has caused hidden rot or timber weakness this may need to be repaired
Is there a grant to help cover removal costs?
The UK government does not give people a grant to remove spray foam.. If you got your foam as part of a government energy scheme you might be able to get some money back from the people who installed it or the scheme people. You can look at the Citizens Advice website to see what you can do.
What kind of insulation should I use after I remove the spray foam?
The best things to use are mineral wool roll insulation or loose-fill insulation. These are good because they let air in and most mortgage people like them. They are also easy to put in.
How do I know what kind of foam I have?
If you have closed cell foam it is hard. Do not squash when you press it. Open cell foam is softer and a bit like a sponge. If you are not sure a professional can. Look before they start removing it.