INTRODUCTION Inspection Procedures oinitial Inspection Report Visual Inspection Physical Sampling (Core and Slit Samples)
ROOF INSPECTION PROCEDURES Occurs upon project completion Includes visual observation and physical sampling
PROJECT INFORMATION The following documents are to submitted with request for inspection 1. Project specific specifications 2. SPF and Coating product manufacturer s installation requirements
ROOF INSPECTION The objective of the roof inspection is to determine the individual applicator s ability to apply SPF as required by the individual project specifications and/or manufacturers requirements.
PROJECT INFORMATION
ROOF SKETCH The Roof Sketch shall include the following: Initial Diagram Visual Findings Physical Sampling
INITIAL ROOF DIAGRAM Initial diagram of roof oarrow indicating DUE NORTH oarrows indicating slope odetails : edges, expansion joints, etc. openetrations : drains, pipes, HVAC equip, skylights, etc. otake photos and note on drawing w/arrow.
INITIAL ROOF DIAGRAM EXAMPLE
VISUAL OBSERVATIONS DELAMINATED SUBSTRATE SPRAY POLYURETHANE FOAM COATING
FOAM CRACK CAUSED BY BUILDING SETTLEMENT
FOAM CRACK
FOAM CRACK AT ROOF EDGE
VISUAL INSPECTION VISUAL INSPECTION - FOAM FOAM BLISTERS WET FOAM PINHOLES SOFT FOAM EXPOSED FOAM SEPARATION FROM FLASHINGS MECHANICAL DAMAGE BIRD DAMAGE PONDING WATER
FOAM BLISTER
RUPTURED FOAM BLISTER
FOAM BLISTERS
WET FOAM AND PINHOLES
CHECK FOR SOFT FOAM THUMB TEST
EXPOSED FOAM
TREEBARK AND POPCORN FOAM TEXTURE
IMPROPER REPAIRS AND EXPOSED FOAM
EXPOSED FOAM
FOAM SEPARATED FROM GRAVEL STOP
IMPROPER DETAIL
IMPROPER DETAIL
MECHANICAL DAMAGE
MECHANICAL DAMAGE
BIRD DAMAGE
PONDING
COATING VISUAL INSPECTION COATING COATING BLISTERS POOR COATING ADHESION COATING CRACKS COATING RUNS PINHOLES
POOR COATING ADHESION
PINHOLES
POOR ACRYLIC COATING ADHESION
THIN COATING/EXPOSED FOAM
PHYSICAL SAMPLING involves destructive investigation and is necessary to ensure that the spray polyurethane foam roofing system has been applied according to the project and/or manufacturer s specification.
PHYSICAL SAMPLING CORE SAMPLES MIN 2 PER ROOF UP TO 10,000 SQ. FT. AND 1 CORE FOR EACH 10,000 SQUARE FEET OVER 10,000 SQ. FT. USE APPROPRIATE CORING DEVICE 2 DIAMETER MINIMUM
CORE SAMPLES CORE SAMPLES MEASURE TOTAL FOAM THICKNESS EXAMINE FOR: NUMBER OF LIFTS THICKNESS OF LIFTS ADHESION SUBSTRATE TO FOAM FOAM TO FOAM FOAM TO COATING COATING TO COATING
CORE SAMPLES OTHER OBSERVATIONS SOFT/SPONGY FOAM MOISTURE UV DEGRADATION BETWEEN LIFTS DIFFERENCE IN COLOR OF LIFTS COATING OR OTHER MATERIALS
CORE TESTING Cores will be measured and weighed to determine the unit weight in accordance with ASTM D1621. Unit weight will be reported in pounds per cubic foot (pcf) Cores will be measured and tested in compression in accordance with ASTM D1622. The compressive strength of the cores will be reported in pounds per square inch (psi)
MEASURE CORE
WEIGH CORE SAMPLE
COMPRESSIVE STRENGTH TESTING
CORE TEST RESULTS
SLIT SAMPLES SLIT SAMPLES OBTAIN SAMPLES FROM THE FOLLOWING: FIELD OF THE ROOF PASS LINES PARAPET WALL/ROOF EDGE (AT LEAST ONE SAMPLE) DEFECTS MINIMUM 3 PER 10,000 SQ. FT. SIZE 1/2 WIDE 2-3 LENGTH 3/4 DEPTH
SLIT SAMPLE EXAMINE SLITS IMMEDIATELY FOR COATING THICKNESS IF COATING IS THIN: TAKE ADDITIONAL SLITS IN A 5 RADIUS IN ALL 4 DIRECTIONS IF STILL THIN, ADDITIONAL SLITS IN A 10 RADIUS OR UNTIL ADEQUATE COATING THICKNESS IS FOUND MEASURE TOTAL FOAM DEPTH
2 TO 3 ¾" SLIT SAMPLE
MEASURE FOAM THICKNESS
OPTICAL COMPARATOR AND SLIT
SLIT AT BLISTER DEGRADATION OF FOAM
ROOF SKETCH INFORMATION PHYSICAL SAMPLING LOCATIONS LOCATE CORE SAMPLE LOCATIONS ON ROOF SKETCH LOCATE SLIT SAMPLE LOCATIONS ON ROOF SKETCH
SLIT SAMPLE REPORTING
FINAL ROOF SKETCH
REPORT The final report will typically include the following: Project Information Name and Location Materials Information Manufacturer s material numbers and lot numbers Deviations observed during inspection Core and Slit sample information Drawing
GOOD WORKMANSHIP
QUESTIONS