Permit - 1282604 - Laserfiche WebLink

Home Browse Search

93-01862 (474088} ~°~ ~ .... Marion County: OREGON -.~ Building InsDeetlen - Dwelling Plan Review The attached plans have been reviewed for compliance with the State of Oregon 1990 Edition One and Two Family Dwelling Specialty Code. This plan review covers the alteration to the design of the basement wall of an existing permit for a structure. The change in design is from a Concrete basement wall to a basement wall using a polystyrene product, "CONFORM" forms. The preliminary review dated October 29, 1992 included a design for a basement wall with less than fou~ feet in height of unbalanced fill for a length of less than 12 feet in accordance with Table NO. R-304.3b. The requirements of this table also apply to this new design using the CONFORM product. If the height of unbalanced fill is over four feet for more than 12 feet, an engineered design is r~quired. The product listing for the CONFORM walls is for foundations and exterior walls only. Install these forms in accordance with the manufacturer's installation instructions and ICBO Evaluation Report NO. 4572. CONFORM walls may be used as retaining and basement walls with reinforcement provided they ar~ designed in accordance with accepted engineering principles. No design was submitted for walls with more than four feet of unbalanced fill. The te~ted U-value for one of conform forms, with Concrete, is not equivalent to an R-21 interior insulated wall. The Conform assembly, with the edge of the slab installed against the insulated concrete wall form (as detailed on the attached detail of the basement wall), is energy equivalent to an R-21 interio~ insualted basement wall and will therefore m~et the R-21 basement requirement per a review by the State ~uilding codes Agency. Foam plastics shall be separated from the interior of a building by an approved thaermal barrier of 1/2-inch gypsum wallboard or equivalent thermal barrier material which will limit the average temperature rise of the unexposed surface to not more than 250 degrees F. after 15 minute~ of fire exposure. The basement walls shall be protected. Approval as a result cf this plan review or an inspection shall not be construed to be an approval of a violation of the provisions of the dwelling code or of other ordinances of the jurisdiction. Reviews or inspections p~esuming to give authority to ~iolat~ or cancel the provision~ of the dwelling code or of other ordinances of the jurisdiction shall not be valid. sf "APPROVED" only when this sheet is attached to plans