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This is what a cavity wall actually is, how you identify one, and whether you can alter one during a renovation, according to the experts

If your home improvement plans involve making changes to existing walls, you'll need to understand what kind of walls you are dealing with, especially as homes are built with multiple different types.
The Business Journals

Building on Philadelphia’s tradition with cavity wall construction

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Philadelphia's architectural heritage is deeply rooted in ...