WHAT IS UFFI – Real Estate Lawyer Burlington


In Ontario, the Agreement of Purchase and Sale is used when buying or selling property.

Paragraph 23 of deals with the clause entitled UFFI.

Urea formaldehyde foam insulation also known as UFFI is a standard clause, wherein the seller promises that UFFI was not used in the construction of the home either prior to their possession or after and to the best of their knowledge.

According to the Health Canada website during the 1970’s UFFI was used in the construction of homes for the purposes of insulation. In 1980 UFFI was prohibited as per the Hazardous Products Act.

The concern was that the formaldehyde released harmful gasses. This resulted in many homes that did have UFFI to suffer substantial property losses.

As a result, today UFFI is not used. However, their may be older homes unbeknown to even the seller that could still have urea formaldehyde insulation. Therefore, paragraph 23 is a standard clause, that requires the seller to warrant or in other words promise that UFFI was not used. This also protects the home buyer.

If you have any further questions contact my office to speak with a Real Estate Lawyer in Burlington. 

Also, feel free to review my other articles about the Agreement of Purchase and Sale:

Part 1: Agreement of Purchase and Sale 

Part 2: Agreement of Purchase and Sale 

For many real estate clients this provides peace of mind knowing they can contact me.


If you are buying a home or selling contact our office to speak with a real estate lawyer in Burlington.
I provide legal services in Burlington, Milton, Hamilton and Oakville.

My address is 901 Guelph Line, Burlington.
You can also call or text at 416-505-4901 OR call Toll Free: 1 (800) 939-9211

Rehan Khalil
call or sms me (416) 505-4901
anytime for a free consultation