If the foam has hardened you may be able to scrape it off with a stiff bristled or wire brush.
How to remove spray foam roof insulation.
Insulation spray foam dormer.
Use a saw for tough spots.
Allow for natural removal.
First check whether the foam has cured dried.
Removing spray foam roof insulation.
A noncured material may dissolve on its own over time no chemicals or blades necessary.
For crawl space encapsulations the only choice is closed cell spray foam which creates a vapor barrier that deflects water and completely insulates.
Finally to remove the last traces of spray foam insulation apply lacquer thinner to the foam and wipe away with a rag once the foam has loosened its hold from the material.
Time to get tough.
Check whether the foam insulation has cured or dried.
Scrape with rough brushes.
You can use a stiff bristled or power wire brush to scrape off the foam and then rinse with water to remove any residue.
The spray foam insulation that remains should be scratched with either a hard bristle brush or a paint scraper to get as close to the wood concrete or brick as possible.
Pry it out with older tools.
However time flies and one day you may need to remove hardened foam from your loft so as to be able.
Your go to guide access for repairs.
But if the foam has cured it s time to get out the tools.