Spray foam insulation is also known as polyurethane spray foam (SPF) and is a popularly used insulation technique.
This insulation type is created from a mix of polyols and diisocyanates. It’s commonly applied to different parts of buildings, such as walls, floors, and roofs, to improve energy efficiency.
When the foam is sprayed, it expands and solidifies, forming a barrier that helps retain heat and prevent air leakage. Spray foam insulation has two types: open-cell and closed-cell and while the former type is lighter and has a spongy texture, the latter is denser and more rigid.
Likely Issues with Spray Foam Insulation
Although people have been using spray foam insulation for more than 25 years without major issues, recent reports have raised problems with timber-framed roofs.
These issues usually show up when spray foam isn’t applied correctly and may be responsible for several complications:
1. Lower air circulation in roof spaces.
2. Dampness and condensation.
3. Decay and structural damage to timber roof beams.
You can avoid these problems as long as you choose a reputable company for installation.
Removing incorrectly applied spray foam can leave the pockets lighter and be difficult, so the first application should be handled with care.
Homeowners should know all the possible risks before they pick spray foam for their home insulation needs.
Guidelines for Proper Installation
- The Green Homes Grant program, which concluded in March 2022, provided funding to improve home energy efficiency, including through spray foam insulation. This program led to an increase in spray foam installations. But, the success of these installations depends on proper application.
- Homeowners should hire trained professionals who follow the manufacturer’s guidelines. Proper installation assures the effectiveness and safety of spray foam insulation.
Importance of Documentation and Mortgage Considerations
If you can maintain detailed records and paperwork related to spray foam insulation, things may get simplified for you in future home sales or refinancing.
Some of these documents are:
- Independent validation certificates from organizations like KIWA and the British Board of Agrément (BBA)
- Spray foam guarantees
- Pre-installation surveys
Lenders get troubled when they can’t assess a property (because spray foam comes in the way of evaluation), but these documents help in judging the quality of the spray foam application job and may convince them.
According to the HomeOwners Alliance (HOA), not all lenders automatically reject properties with spray foam insulation. Eligibility mostly depends on the type of insulation and the quality of the installation. Lenders typically need a professional survey before making a decision.
Addressing Spray Foam Insulation Issues
Recently, some businesses have falsely claimed to be surveyors, and have been asking homeowners to remove their spray foam installations. Isothane is a reputable installer advising against removing correctly installed spray foam.
Homeowners experiencing problems should review the terms under which they purchased the insulation and consult the original installer or relevant accreditation body. If the installation was funded by the Green Homes Grant, specific procedures would be in place to resolve disputes.
Seeking legal advice and assistance from Citizens Advice for disputes with traders is also suggested.
Final Thoughts
When considering spray foam insulation, it is necessary to hire licensed and experienced professionals.
Proper installation reduces risks and ensures the insulation’s usefulness and safety. Homeowners should understand the probable impact of spray foam insulation, particularly on timber roofs, and take necessary precautions to ensure a successful application.
Isothane provides advanced insulation solutions that improve energy efficiency and protect structures. Their products are designed to meet high performance and reliability standards in various applications.
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