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T&O Regional Engineering <br />LAST External Inspection Checklist <br />LASS' External Inspection Checklist l <br />1 For safety, before accessing the roof,, check its <br />thickness ultrasonically or lightly use a ball peen ' <br />} <br />hammer to test the deck plate near its edge fora. <br />thinning, (Corrosion normally attacks the roof <br />( ; plat=_ at the edge and the rafters In the Center of 2a'IJ <br />the roof first. B 2 5 <br />2 Visually inspect for paint failure, holes, pitting, <br />1 <br />I <br />and corrosion. <br />s 4r,�fA► l <br />14.3 <br />I ROOF t7RA;NAGe <br />E <br />J OK <br />NA <br />1 amm roT� <br />1 Look for indication of standing water. <br />i (Significant sagging may indicate rafter or <br />l Foundation failure, or overload.. <br />i <br />14.4 <br />ROOF <br />INSULATION <br />E <br />10K <br />I NA <br />Comments: <br />I <br />Visually inspect for cracks or leaks in the <br />a� <br />1 insulation weather coat where precipltati(311 <br />1 could cenetrate the insulation. <br />1 <br />2 <br />Remove small sections of Insulation and check <br />roof for corrosion. Check for corrosion near the <br />ed es of the insulation. <br />4.5 <br />SAMPLE <br />HATCH <br />E : <br />OK <br />JNA' <br />]..Comments - <br />1 <br />Inspect condition and operation of sarnple hatch <br />cover. <br />2 <br />Check the condition of the seal inside the hatch <br />cover I <br />3 <br />Where sample hatch is used to reel gauge stock <br />level, Check for marker and tab stating hold -off <br />distance. <br />4 <br />Inspect the reinforcing pad where sample hatch <br />i e venetrates the roof. <br />( <br />5 <br />On floating roof sample hatch and recoil <br />t <br />systems, inspect operation of recoil reel and <br />I <br />condition of lines. <br />6 <br />on ultra dean stocks such as 3P4, check for <br />l <br />presence and condition of protective coating or <br />I <br />liner inside sample hatch (preventing rust from <br />pipe getting into sari oe`. <br />4.6 <br />SCAFFOLD SUPPORT <br />E <br />OKI <br />NA' <br />Comments. <br />1 In scaffold support for corrosion, wear, and <br />t( <br />structural soundness. Record dimensions <br />i <br />4.7 <br />AUTOGAUGE: INSPECnoN HATCH AND GuivEs <br />E <br />OK <br />NA <br />Comments:. <br />—i—I Check the hatch for corrosion and missing Wts, <br />i <br />2 1 Inspect the tape guide's and float guide's wire <br />! <br />anchors <br />4.$ <br />1 VENTS ON ROOF AND AT TOP OF SHELL <br />1 <br />Record size, manufacturer, model number, and� <br />( <br />� " X�,ytn &C � v <br />number of manufactured vents, and dimensions <br />[ <br />number e I <br />and umbe of other vents. Nat_ if vents are <br />( <br />�,.,.� v tis `�' <br />open or closed ,es, <br />2 <br />For closed vents: check pallets and sealing <br />surfaces. Ensure proper movement and record <br />any weights that are Rresent. <br />3 <br />1 Are vents free of obstructions?l <br />4 <br />Check the condition of the emergency vent. <br />Record manufacturer, size and model number. <br />5 <br />Inspect the external condition of the flame <br />arrestor. <br />6 <br />Record manufacturer, model number, size, and <br />j <br />1.auantity of all flame arrestors <br />I <br />4.9 <br />OVERFLOW ALARM SYSTEM <br />E <br />100 <br />I NA <br />Comments: <br />1 Identify and record the types, manufacturer, <br />and model numbers of overfill protection <br />devices. <br />2 1 Check overfill orotection devices fors^ns of <br />Revision Date: Oct2013 Page 5 of 9 <br />