Notes
Slide Show
Outline
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Ohio Department of Health:
School Environmental Health and Safety Inspection Training






  • School Roof Inspection
  • November 29, 2007



  • Mark Wantage
  • Ohio School Facilities Commission
  • mark.wantage@osfc.state.oh.us
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Overview
  • This Session
    • Posted on the Website & Available by Email
  • Inspecting for What?
  • Roles
  • Inspection Forms
  • Types of Roofs
  • Resources
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Inspecting for What?
  • Anything on the outside that will negatively effect the inside
    • Water-Dirt-Smell
  • Anything
    • Worn, Torn, Cracked or Broken
  • Anything that should not be there
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Greatest Concern
  • Water Intrusion
  • Problem
    • Mold
    • Energy Loss
    • Structure Deterioration
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Roles
  • School District
      • Two Visual Inspections per Year
      • Weather Change:  Spring and Summer
      • After Severe Weather Event
  • Health Inspector
      • Required Annual Visual Inspection
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School District
  • Warrantees
    • Know Them
    • Do Not Violate Them
  • Detailed Inspection by a Professional Roof Inspector
    • When a Problem is Discovered
    • Every 3-5 years
  • Education & Training
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Look at the Roof & Look at What's on the Roof
  • The Roof Itself
  • Intended Penetrations
  • Fans, Vents and Air-conditioners
  • Also:
    • Ceiling Tiles and Walls
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School District:   What to Have
  • Warrantee Information
  • Insurance Information
  • Requirement:  Roof Diagram
    • Existing Blue Prints
    • Map the Roof
      • Fans, Vents, Drains & Penetrations
      • Note the Height of Exhaust Stacks
      • Recommend Identification of What’s Exhausted
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School District:   What to Do
  • Create a Roof File
  • Take Photos or VIDEO of the entire Roof & all Roof Mounted Equipment
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What to Look for:                                  Excerpt from Inspection Form
  • Evidence of standing water on ground adjacent to storm drains
  • Gutters/downspouts/storm drains blocked with debris
  • Cracks, gaps or other damage to gutters/downspouts/storm drains
  • Standing water or evidence of past standing water on roof deck
  • Accumulation of excessive debris on roof deck
  • Suspected microbial growth or other water damage on roof deck
  • Evidence of bird, rodent or insect infestation
  • Roof deck material cracked, damaged or missing
  • Roof deck seals cracked or broken creating openings for water intrusion
  • Flashing systems improperly sealed creating openings for water intrusion
  • Cracks, gaps or other damage to walls
  • Suspected microbial growth on any rooftop surfaces
  • Other conditions that may result in water intrusion into the building
  • Suspected microbial growth on HVAC system components
  • Air contaminant sources near outside air intakes to air handling units
  • Outside air intakes blocked, obstructed or broken
  • Air intake screens broken or missing on air handling units
  • Excessive noise generated by HVAC system components
  • Other safety concerns
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What to Look for on the Roof:                                          In the Field
  • Tools, Trash and Debris on the Roof
  • Evidence of a Problem
    • Stains, Cracks, Moisture or Missing Materials
    • Roof Membrane Bubbling Up
    • Wrinkles or Stretching
    • Holes and Gaps
    • Excessive Usage of Chalk
    • Puddleing
    • Anything Growing (except if intentional)
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What To look for on the Roof:                      About The Equipment
  • Loose Equipment
  • Evidence of Ponding around Equipment
  • Loose or Missing Access Panels
  • Plugged Vent Pipes
  • Check Fan & Air-conditioner Electrical Disconnects
  • Check Air-conditioner
    • Units Interior
    • Filters and Fan
    • Drain and Drain Pipes
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Types of Roofs
  • Built-up Roof (BUR)
    • Flat (Low Slope) Roofs
      • Elastomeric (Single Ply) membranes
      • Weldable Thermoplastic Membranes
        • EPDM (Ethylene Propylene-diene Monomer)
        • Graveled (Gravel is a ballast to hold the roof down)
  • Pitched Roofs
    • Metal
    • Shingled
    • Thatched
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Photos
  • Examples of Potential Problems
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Gap between Fascia and Wall
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View of Shingles that have Delaminated.
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View of a section of ridge:  loose & missing shingles.
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Ice & Water Shield Membrane not extended to the rake edge.
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Section of Batt Insulation that was not sealed to steel deck
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Section of Batt Insulation that is not sealed (note bark area)
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Wall Section showing open void in building envelope
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Vent Pipe Boot on Metal Roof
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Gap in Metal Roof Section
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Gap in Air-handler Mounting Pad
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Roof Flashing , Calking, Weep Hole
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Visual sign of water.                     Where is the source?
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Safety
  • Use Ladders Properly
  • Wet Roofs are Slippery
  • Lighting &Thunder
  • Trip Hazards
  • Electrical Hazards
  • Sharp Edges
  • Fan Belts and Moving Equipment
  • Others and more
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Resources
  • Ohio Public Facilities Association  (OPFMA)            www.opfma.org
  • National Clearinghouse for Educational Facilities  (NCEF)    www.edfacilities.org
  • National Roofing Contracting Association  (NRCA)   www.nrca.net
  • National Environmental Balancing Bureau (NEBB)   www.nebb.org
  • Associated Air Balancing Council  (AABC)               www.aabc.com
  • Ohio School Facilities Commission  (OSFC)            www.osfc.state.oh.us
  • Tools for Schools www.epa.gov/iaq/schools