On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
Anomaly # __
Suspect wet areas shown with arrows below.
Notes: ______________________________________________
Qualitative Infrared Thermographic
Roof Moisture Survey of
BUILDING ROOF
112 4th Avenue East
Olympia, WA
May 9, 2015
Prepared for:
Jed Stickgold
Owner
On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
Anomaly # __
Puget Sound Infrared
PO Box 4283
Tumwater, WA 98501
www.pugetsoundinfrared.com
Suspect wet areas shown with arrows below.
Notes: ______________________________________________
May 11, 2015
Jed Stickgold
Owner
112 4th Avenue East
Olympia, WA 98501
RE: On-Roof Infrared Survey of Roof Moisture
112 4th Avenue East
Olympia, WA
Dear Mr. Stickgold:
Herein, please find the report for the thermal infrared roof moisture survey of roof that was conducted
at the site referenced above during the evening hours of May 9, 2015. Below, please find a map of the
roof showing the relative position of the two suspect areas with a page for each anomaly including a
thermal and visual image.
Puget Sound Infrared, an Authorized RoofScanIR™ Contractor, was retained for an infrared survey of the
roof in an effort to identify areas of suspect moisture and to mark the areas for further review. This
report is based on information obtained at the site at the given date and time. We scanned the entire
roof and found two areas of suspect roof moisture and documented our findings with a thermograph and
photograph of the area. The purpose of any infrared thermography service is not to locate or identify
leak sources, but rather to location subsurface moisture intrusion and our inspection is designed to
comply with ASTM Standard C1153 -"Standard Practice for Location of Wet Insulation in Roofing Systems
Using Infrared Imaging" with the exception of core sampling.
Analysis and Recommendations
We recommend that your roof maintenance team carefully review this report. Then, with reference to
the images and map contained herein, these areas should be physically located and given a thorough
visual examination. When warranted, these areas should be subjected to a destructive test (core sample)
to confirm the analysis. (We recommend a roofing profession conduct core samples on the roof as
needed.) Destructive probes and roof cores will be taken and repaired by others and are not in our scope
of our work. Services such as interpretation of thermal patterns documented in this report and any
remedial and replacement recommendations should be performed by a knowledgeable roofing
consultant or comparable roofing expert.
Please let me know if I can be of any assistance by calling me directly at 360-480-8083 or by email:
[email protected]. We are looking forward to working with you on many future projects.
Sincerely,
Pete Sutch
Puget Sound Infrared
Authorized RoofScanIR™ Contractor
On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
Anomaly # __
Puget Sound Infrared
PO Box 4283
Tumwater, WA 98501
www.pugetsoundinfrared.com
Suspect wet areas shown with arrows below.
Notes: ______________________________________________
Roof Moisture Survey Info
Client: Jed Stickgold
Building Name: Unknown
Building Location: 112 4th Avenue East in Olympia, WA
Survey Date: May 9, 2015
Survey Start Time: 8 pm
Last recordable rainfall: Wednesday, May 6th
Daytime weather conditions: Sunny and 70’s
Weather conditions at survey start time: Clear and cloudless
Wind speed/direction at survey start time: 0-5 MPH / SSW
Ambient temperature at survey start: 55F
Imager used: T420 w/wide angle lens
Roof Covering: Single-ply membrane
Roof insulation: Polyisocyanurate
Roof deck: CDX plywood sheeting
Notes:
Understanding Infrared Roof Imagery
Thermal infrared imagery is imagery that shows heat. It is often in the form of a grayscale picture
whose shades of gray indicate the differences in temperature and emissivity of objects in the
image. Typically, objects in the image that are lighter are warmer, and those that look darker are
cooler. Bright white objects are the warmest in the images. Black objects are the coolest. Any
object with a temperature above absolute zero (0 Kelvin or –273 degrees Celsius) emits infrared
radiation. A thermal infrared picture only shows objects which emit energy in thermal infrared
wavelengths.
Areas of roof moisture contamination often manifest themselves as warmer (lighter colored)
areas that may be nebulous in shape and sometimes mottled in appearance, although they are
commonly found in linear or puddle-like shapes. The linear shapes many times follow low areas,
drainage routes, roof edges and seams. Puddle-like round or oblong shapes often form around
roof penetrations such as mechanical equipment, standpipes, vents and drains. The wet areas are
lighter in color because the latent heat (from daylight sunshine) in the trapped water mass is
greater than in the dry, functioning insulation or roof substrate. After sunset when the roof
structure cools down, wet areas of roof insulation and other materials continue to radiate heat,
allowing our sensitive infrared cameras to detect the sources of heat and record them for later
analysis.
On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
Puget Sound Infrared
Anomaly # __
PO Box 4283
Tumwater, WA 98501
www.pugetsoundinfrared.com
Suspect wet areas shown with arrows below.
Notes: ______________________________________________
Google Earth Map Marked with Anomaly Areas
2
1
On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
1
Anomaly # __
Suspect wet areas shown with arrows below.
Notes: ______________________________________________
On-Roof Infrared Moisture Survey
112 4th Ave East in Olympia, WA
2
Anomaly # __
Suspect wet areas shown with arrows below.
Notes: ______________________________________________