8814 96 St, Peace River, AB T8S 1R6, Canada
Inspection Address
8814 96 St, Peace River, AB T8S 1R6, Canada
Inspection By
Chris McAllister
Inspection Date
March 5, 2025 at 5:24:54 p.m.
Existing Roof System
Describe the type and conditions of the various membranes types on the roof
The subject roof is a gray, torch-applied SBS modified bitumen system, penetrated by two plumbing vents and one furnace B-vent. Adjoining this roof to the north is another roof utilizing the same gray SBS torch-on material. Conversely, the roof to the south is a built-up roofing (BUR) system covered with pea gravel ballast. Notably, a spudded seam is evident, suggesting a previous effort to connect the current SBS system to the existing BUR system."
Interior Condition, Leaks, Insulation, Roof Deck Type
Collect pictures to help depict the issues presenting on the interior of the building, if accessible collect images of any below deck insulation and the roof deck type.
It is important to note that access to the building's interior was not available. Therefore, a complete assessment of the roof's condition, including the identification of any potential leaks, was not possible.
Attic/Crawl Space Inspection
Check vent/insul/deck/struct/plumb/wire/pests/moisture. Note damage, leaks, ventilation, & insulation. Photo any issues
While no current leaks were observed from the exterior, the roof exhibits excessive blistering. This condition significantly increases the likelihood of future leaks, potentially compromising the building's interior and structural integrity.
Exterior Roof Inspection
Exterior roof inspections assess the visible condition, including damaged shingles/tiles, leaks, flashing, and gutters. Flat roofs require close membrane scrutiny: blisters, cracks, seams, and ponding areas. Check for rot, mold, structural issues, ventilation, and chimney condition. Document findings with photos, noting membrane type and condition. Prioritize safety and thoroughness.
A thorough inspection revealed approximately 32 locations of blistering across the roof surface. Photographic documentation was obtained for each blister, all of which exhibited 'fish mouthing.' This condition strongly indicates that leaks are either currently present or will develop in the near future. Assuming the existing system is a two-ply SBS membrane, it is recommended to replace the top ply. This replacement should encompass the curb, parapet, and separating flashings, specifically addressing the areas where the subject roof adjoins the neighboring roofs to the north and the subsequent roof. Both the adjacent and subsequent roofs, which appear to be in satisfactory condition and utilize the same gray SBS material.
Exterior Roof Materials
Meticulous documentation of the existing roofing system is essential. For color, capture well-lit photos from various angles, noting manufacturer and color names. If unknown, compare physical samples to color charts under natural light. A cut test requires careful removal of a small section, noting material layers, thickness, and degradation. Photograph the cut and surrounding area, recording markings. Additionally, document insulation type (fiberglass, foam, etc.) and thickness. Record fiberboard composition and condition (water damage, delamination). Specify the vapor barrier type (polyethylene, kraft paper) and condition (tears, punctures). During the cut test, examine underlayment and roof deck type (plywood, OSB, etc.). Ensure thorough documentation of all materials for accurate matching and assessment.
Photos confirm the subject roof is a gray, torch-applied SBS membrane that, while not appearing excessively aged, exhibits significant deterioration. Multiple heavy blisters, all displaying 'fish mouthing,' are present, along with areas of standing water due to the absence of adequate drainage (only a scupper is present). The metal wall flashings and plumbing vent flashings appear to be in good condition. Notably, the furnace curb and parapet wall flashings do not exhibit visible 'fish mouthing.'
