The ASME STS-1 Steel Stack Standard Recommends That Stack Systems Be Inspected On A Routine Basis. Warren Environment Is Available To Provide Inspection And Repair Service For Your Stack Regardless Of The Manufacturer. Following An Inspection Of The Stack System, A Professional Engineer Will Submit A Detailed Report That Includes Our Findings With Any Recommended Repairs Or Modifications. Please Contact Warren To Discuss Your Inspection Or Repair Needs.