Spray foam insulation used to be seen as a completely new way to keep homes warm in Britain. A lot of people have been selling it for the past 20 years, mostly to older homeowners through government-backed energy-saving programs. It promises much lower heating bills, a warmer home, and a smaller environmental impact. For many, though, the truth has been very different. Spread across the UK, thousands of homeowners are now dealing with major structural, financial, and legal problems because they put spray foam in their homes. Figuring out why this product causes so many issues is the first thing that needs to be done to fix them. For many families, this process starts with having professional spray foam removal done.
How does spray foam insulation work? What is it?
There are two main types of spray foam insulation: open-cell and closed-cell. Open-cell foam is less thick and softer, while closed-cell foam is stiffer and denser. Both are used as a liquid that quickly fills gaps and hardens into a solid mass when it comes in touch with surfaces. When used properly and in the right conditions, the product can provide good thermal performance. It’s not always the object itself that’s the problem. Sometimes it’s where and how it’s used, along with the long-term effects of that use in a residential setting. Spray foam insulation doesn’t work well with older British homes because it gets mixed up with the building materials. This means that spray foam removal is not only a good idea but often a must.
The Problem of Damage to Structures
One of the worst things about spray foam insulation is that it can damage the structure of roof beams and rafters. When closed-cell foam is put directly on the underside of roof tiles and wooden buildings, it sticks very strongly to the wood. Over time, this strong sticking together stops the wood from moving naturally to adapt to changes in humidity and temperature. As the seasons change, wood grows and shrinks. If it can’t do this naturally, it can split, twist, and crack. It is also possible for the foam to hold water inside the wood, which speeds up rot and decay in ways that you can’t see. The damage may be pretty bad by the time it can be seen. The cost of fixing the structure after spray foam removal can reach tens of thousands of pounds. This is a surprise cost that most homes don’t plan for when they first get the product installed.
The Crisis in Mortgages and Loans
The effect that spray foam insulation has on mortgage lending may be the most devastating effect on homes right away. As of the middle of 2010, more and more mortgage lenders in the UK have made it a policy to either not lend on homes with spray foam insulation or greatly limit the conditions under which they will. The presence of spray foam must be noted by surveyors in their reports, and many lenders now view it as a red flag that makes a property unmortgageable until professional spray foam removal has been performed and a follow-up structural assessment has confirmed that there is no underlying damage. This means that a lot of people can’t sell their homes, remortgage, or sometimes even get the equity out of their homes that they were counting on for retirement. A lot of people have been hurt by this situation.
How it affects the property’s value and ability to sell
Even if a banker is willing to look at a house with spray foam insulation, buyers are becoming more aware of the risks and are either not interested in the house at all or are making offers that are much lower than what the house is worth because of the cost of spray foam removal and any necessary repairs. It is common for real estate professionals to say that homes with spray foam are much harder to sell, and that the material in the roof alone is enough to turn away whole groups of buyers. This drop in value seems especially unfair to people who had spray foam installed in good faith, often because of government efforts to save energy or because they were cold-called by contractors. Most of the time, the product causes more money loss than it brings in from savings on heating bills.
The Problems with Insurance
Another place where spray foam insulation causes a lot of trouble is insurance. Some house insurers have refused to cover homes with spray foam or have cancelled policies when they found out about it. They say that the foam raises the risk of hidden structural damage. Others have added terms that don’t cover any damage that might be caused by the foam. People who own their own homes might not know about these effects until they need to make a claim and find that their insurance doesn’t protect them as much as they thought it would. Making sure that a property is properly insured after spray foam removal and cleanup is a very important step that professional workers will usually suggest as part of the whole process.
The Problem with Ventilation and Condensation
In traditional British roof building, ventilation is used to keep water out. Especially older roofs were built with the idea that air would flow easily under the tiles, letting any moisture escape safely. When spray foam is put on the underside of a roof, it completely blocks this air flow line. Because of this, the water that comes from cooking, cleaning, breathing, and other activities around the house has nowhere to go. As it builds up in the roof, it makes the perfect environment for mould, damp, and wood rot. It can take years for problems caused by poor ventilation to become obvious in many homes. By that time, a lot of hidden damage may have already happened. Experts in spray foam removal stress how important it is to do a full check afterward to see what the foam may have hidden.
The Problem of Moving Itself
Getting rid of spray foam is not an easy do-it-yourself project. The product sticks very strongly to wood and brick, and using the wrong methods to remove it can do as much damage as the foam itself. People who aren’t skilled at doing it often break or crack tiles and splinter wood when they try to chip or pull off solid foam. For professional spray foam removal, trained workers with specialised tools and well-thought-out methods must be used to remove the material without damaging the building further. If the material is open-cell foam, which is more porous and can get highly contaminated with moisture over time, it may have broken down to the point where it is very hard to remove. Often, the state of the structure below is not known until the spray foam removal process starts. This means that costs can go up when damage that was hidden is found.
The World of Regulation and Consumer Protection
It took the UK government and regulatory groups a while to realise how bad the spray foam problem was, but people are much more aware of it now than they were a few years ago. It has been brought to the attention of consumer protection groups how many weak homeowners, especially older people, were targeted by pushy salespeople and had the product put without fully understanding the risks. Some contractors who put in spray foam have since shut down, so homeowners can’t take action against the people who sold and placed the product. Spray foam removal experts say that homeowners should only hire licensed, reliable professionals with proof of experience and the right insurance, and that they should proceed with extreme caution when hiring a spray foam installer.
A Look Ahead
The spray foam insulation crisis shows how dangerous it can be when building goods aren’t regulated properly and home improvement stores use aggressive marketing. For people who have already been affected, the most important thing is to get a professional assessment, find out how bad the damage is, and get spray foam removal as soon as possible from a trained expert. Delaying action is almost never a good idea because damage to roofs caused by water tends to get worse over time. Even though spray foam removal and repairs can be expensive, the long-term costs and problems that come with keeping the foam in place are usually much worse. To fix a property’s worth, saleability, and structural integrity, you must first clearly understand the problem and act on that understanding right away.