Not sure -- I've been thinking about the stresses that might create, as opposed to mounting it on the inside. Not sure if it makes a huge difference, but it certainly would seem that you could get more "miles" out of the scraper that way.
At least in my situation -- a north-facing slope which used to be gravel but is now paved-- if I can scrape it down to or nearly to the pavement, if we get any sun at all it will clear itself off fairly quickly. If I don't get it scraped down sufficiently, any sun will create melting at the top, water flowing downhill, then black ice by the next morning. Not good. So anything that helps get it scraped all the way down to the pavement is good. Yeah, I tend to be rough on my scraper blades, but any cars trying to get out of my driveway appreciate it.
Think I'm going to try that!
At least in my situation -- a north-facing slope which used to be gravel but is now paved-- if I can scrape it down to or nearly to the pavement, if we get any sun at all it will clear itself off fairly quickly. If I don't get it scraped down sufficiently, any sun will create melting at the top, water flowing downhill, then black ice by the next morning. Not good. So anything that helps get it scraped all the way down to the pavement is good. Yeah, I tend to be rough on my scraper blades, but any cars trying to get out of my driveway appreciate it.
Think I'm going to try that!