Spray Foam Insulation Surveys
What is Spray Foam Insulation?
Spray foam insulation is a widely used method for insulating properties in the UK, particularly in hard-to-reach areas like lofts and roof spaces. Made from polyurethane, it is applied using a spray gun, expanding into a foam layer that improves thermal efficiency and helps reduce energy costs. Due to its ease of application, it’s a common choice for insulating lofts and roof rafters.
However, concerns have emerged among surveyors, lenders, and insurers about the potential risks that spray foam insulation can pose, particularly when applied incorrectly or without proper ventilation.
Issues with Spray Foam Insulation
Moisture Retention and Timber Decay
Both types of spray foam insulation—porous (open-cell) and non-porous (closed-cell)—can cause moisture retention problems, leading to timber decay:
- Porous Foam (Open-Cell) allows for airflow but can act like a sponge, absorbing moisture and holding it against timber, which can result in dampness and decay.
- Non-Porous Foam (Closed-Cell) provides structural support but prevents moisture from escaping, trapping it against timber and potentially causing wet or dry rot.
Both types can lead to serious damage over time, compromising the structural integrity of your roof.
Masking Defects
Spray foam can hide defects, such as roof leaks. If water seeps into the roof, the foam can trap it, making it difficult to detect and address the issue early. This hidden moisture can lead to further timber decay and more costly repairs down the line.
Impact on Property Valuation and Mortgages
Due to the potential risks associated with spray foam insulation, many surveyors and mortgage lenders are cautious when assessing properties with this type of insulation. Some lenders require an inspection of roof timbers or may request the removal of spray foam insulation to check for underlying issues before approving a mortgage.
Why choose Eagle Surveyors for spray foam insulation surveys
At Eagle Surveyors, our experienced team provides detailed assessments to ensure that any potential problems with your spray foam insulation are identified before they become costly. We check not only for installation issues but also for signs of timber decay, moisture retention, or other underlying problems. Our thorough approach gives you peace of mind and helps protect your property from future damage.
If you’re concerned about your spray foam insulation or planning to sell your property, book a survey today.
Book A Survey
We carry out surveys for properties of all ages, shapes and sizes across Northern Ireland, helping homebuyers find out exactly what they will be investing their money into before it’s too late.
What to Do If You Have Spray Foam Insulation
If your spray foam insulation was installed correctly and your roof is well-ventilated, you may not need to take any action. However, if you are unsure about the quality of the installation or suspect potential issues, it’s important to get a survey.
Many mortgage lenders now require an inspection of roof timbers with spray foam insulation before approving loans. In some cases, they may request that the foam be removed to ensure there are no hidden problems before releasing funds.
How Eagle Surveyors Inspects Spray Foam Insulation
Our expert team performs a thorough survey of your spray foam insulation. We examine whether the insulation is porous or non-porous, evaluate its application, and ensure it meets industry standards. By removing a small section of foam, we inspect the condition of the underlying timber, roofing felt, and other materials, checking for moisture retention, woodworm, or fungal decay.
We also take moisture readings from key structural elements like rafters and ceiling joists to detect hidden issues. Our surveyors follow industry protocols developed by policymakers and lenders to ensure accurate and reliable assessments.
Why an Inspection is Crucial
Given the risks associated with spray foam insulation, it’s essential to have your property inspected by a qualified surveyor. At Eagle Surveyors, we conduct comprehensive spray foam insulation surveys to determine if the insulation has been correctly installed and assess whether it’s causing any hidden damage. Our survey will check for moisture buildup, timber decay, and other related problems that may not be visible to the untrained eye.
