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.M�r 2? 04 03: 44p Scott SteVenson 952-z52-3003 p. 3 <br /> ru�►�c=��-e�v nb•4n UL I C l U r�r�o 1 VJJ 1 1 11 V V � .�� <br /> Scott Steve�son <br /> Macch 22,2004 <br /> Pe6e 2 <br /> i. The roaf that is currently in ptace is the original roof that was there <br /> prior to enclosing the walls. <br /> ii. The breezeway is endosed with 2x wood framed wa11s that are tied to <br /> the roof and ariached to the original concrete slab-4n-grade. <br /> iii. The walls have 2x treated sill plates anchored to the slab-on-grade. <br /> iv. There is no foundation wall below the exteriorwalls of the breezeway. <br /> v. The new enclos�d area wi(I serve as a mud room and will be heated. <br /> ENGINEERlNG OPINION <br /> 2. The exterior walls of the breezeway are exposed to potentlal frost heave since there <br /> are no foundation walls below them to provide frost protection. The State Building <br /> Code r�quires that adequate frost protection be provided on the exterior side of an <br /> exterior wall for he�ted spaces. If the walls are subjected to any significant frost <br /> heave, it may damage the roof and any corresponding connections to the main <br /> framing of the house. Corrective measures are required to provide adequate frost <br /> prvtection. <br /> 3. The Canadian Research Council and ASGE have determined through st�dies that <br /> rigid insulation laid flat provides protection t4 footings against frost action. They <br /> recommend installing rigid insulation. 4" thick, extending 4 feet horizontafly away <br /> from any unprotected elements. <br /> CORRECTIVE MEASURES <br /> 4. The following c:orrective measures are required: <br /> a. 4-inches of rigid Styrofoam insulatian shalf be placed horizontalfy, so it � <br /> e�ends 4 feet beyond the base vf the exteriorwall. <br /> b. The existing exterio� concrete sl�b-on-grade shal( be �emoved and the <br /> insulation shall be placed at a depth no greater then 6-inches. A new slab- <br /> on-grade can be placed aver the rigid insulation. <br /> PROFESSIONAL OPINION <br /> 5. It is my professio�al engineering opinion that; <br /> a. The rigid insulation wil) provide adequate frost protection for the walls of the <br /> breezeway. <br /> GENERAL <br /> 6. The infarmation, observations, and opinions stated in this repo�t are based on an <br /> inspection made by Jason Hanlon. The inspection consisted of a visual walk- <br /> threugh observing expvsed elements and those accessible without the removal of <br /> finished materials. <br />