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• • <br />C� civil & structural <br />ENGINEERING engineering & planning <br />_�� i � c� � -�-��?c%� <br />STRUCTURAL ASSESSMENT REPORT <br />Project: Nguyen Residence Tree Damage <br />Assessment Purpose: Structural Assessment <br />Location: 1001 Pine St Everett WA 98201 Date: May 2, 2016 <br />CG Project: 16119.10 Report: 1 <br />Client: Home Pros Construction LLC General Contractor: Home Pros Construction LLC <br />Field Rep: Mike Maechler, PE, SE <br />PURPOSE AND SCOPE <br />CG Engineering was retained by Home Pros Construction to perform a structural assessment of the structural <br />damage caused by tree impact on the roof of a single family residence at the address noted above. A <br />representative of CG Engineering was on site on April 14, 2016 to perform the assessment. <br />EXISTING BUILDING <br />The existing house is a one-story, wood-framed house built in 1945. The roof is framed with 2x4 rafters and <br />ceiling joists, the walls are presumed to be wood studs, and the foundation consists of concrete strip footings at <br />the perimeter and post and beam crawlspace at the interior condition. There is a covered patio at the back of <br />the house. <br />OBSERVATIONS & RECOMMENDATIONS <br />At the time of the site visit, the trees had been removed from the house, and several holes in the roof were <br />observed. Our observations were made from the top of the roof, inside the attic space, inside the crawlspace, <br />and inside the house. The following items summarize our findings: <br />Broken Rafters and Hip Members — Several of the 2x4 rafters and 2x4 hip members were broken and <br />need to be replaced in their entirety. The broken members were located in the area of the main tree <br />impact on the east side of the house. Refer to the attached repair plan and details on sheets SK-1 and <br />SK-2 for replacement requirements. <br />Dama�ed Rafter Connections to Hip Members — The toe-nailed connection of two 2x4 rafters to the <br />northwest 2x4 hip member were compromised and need to be repaired. Refer to the attached repair <br />plan on sheet SK-1 for repair requirements. <br />3. Dama�ed Rafter Bracin� Connection — One of the 2x4 rafter braces had become disconnected from the <br />2x4 rafter, and punctured through the roof. The rafter brace shall be removed and new rafters and <br />collar ties shall be installed per the repair plan and details on sheets SK-1 and SK-2. <br />4. Holes in Roof Sheathin� — Several holes in the roof sheathing were observed where the tree branches <br />had punctured the roof. The existing skip sheathing shall be replaced in like kind. Fasten each board <br />into each rafter with two 10d common nails per board. Center board splices at the edge of rafter and <br />provide 2x4 blocking sistered to rafter to receive board nailing. <br />250 4th Avenue South, Suite 200 <br />Edmonds, WA 98020 <br />ph.425.778.8500 � f.425.778.5536 <br />www.cgengineering.com <br />