BUILDING ROOF 112 4th Avenue East Olympia, WA
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: ______________________________________________
© Copyright 2024