excessive chalking on metal roof | General Discussion | Archive | Ask The Experts Forum

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My metal roof has excessive chalking. The pitch of the roof is 9/12. What is the best way to remove the chalking.		Guest User 8/9/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11887/find/
You may be able to cleanse it with a mixture of water, detergent, and TSP. At one time there was a coating out which purported to fix oxidized surfaces but they seem to be out of business. Perhaps it did not work so well.		Todd Miller Isaiah Industries, Inc. 8/26/2008	Share Or copy this URL: https://www.metalroofing.com/spirit/comment/11888/find/