America's Premier Inspection Service
The Inspector Newsletter
May 2018: The Outdoors
Snapshots From The Field

Our inspectors are constantly coming across interesting finds in the field. Sometimes they help us identify potential safety hazards, and sometimes they illustrate a maintenance DIY that didn’t quite go as planned. This month’s Snapshot from the Field is the latter.

What’s wrong with this picture?

The skylight on this 20-year-old metal roof was leaking like crazy. That’s because the homeowner attempted to seal it with the yellow spray foam insulation you see around the perimeter in order to keep bats out of the house. This caused significant damage to the flashing around the skylight and entire roof panels to pop up as a result!

This homeowner had the right idea when it comes to dealing with bats—every gap does need to be sealed up in order to prevent their entry into a home. But spray polyurethane foam is not recommended for use on roofing materials, nor is it recommended for use in such large quantities. The homeowner would have been better off ordering an inspection of the roof to discover any holes and then using a sealant recommended for use on roofing materials. Check and double-check your labels, and when in doubt, call a professional for advice.


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