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HomeMy WebLinkAboutMiscellaneous Compliance Report 2012-3- (3)Wgfl b------SPRINFIELD r'BUILDING 'LANE COUNTY atj I.DEPARTMENT, LLC — oRecoN- .. .-- — Exterior Wall Envelope Self-Certification Form I, h a.7iL,a. Nun,,a , am the general contractor or the owner-builder at the following address: Sys MT,a.T Z1 /6 . Street Address City /2— 2100 - Permit# - •. To conform to the 2011 Oregon Residential Specialty Code (ORSC), Section R703.1.1, I am notifying the building official that I am aware of the exterior wall envelope requirements of R703.1.1, and hereby certify that the components of the exterior wall envelope have been installed in accordance with the code requirements. [Section R703.1.1 is provided for reference on the reverse side of this form.] . doai1 J'ToI'her . •Print Name Signature 3-Zu- Yt.- Date • Revised: 2/8/2010 • Excerpt from 2011 Oregon Residential Specialty Code Section R703, Exterior Covering: R703.1.1 Exterior Wall Envelope. To promote building durability,the exterior wall envelope shall be installed in a manner that water that enters the assembly can drain to the exterior.The envelope shall consist of an exterior veneer, a water-resistive barrier as required in R703.2, a minimum 1/8 inch space between the water-resistive barrier and the exterior veneer,and integrated flashings as required in R703.8.The required space shall be formed by the use of any non-corrodible furring strip, drainage mat or drainage board.The envelope shall provide proper integration of flashings .. with the water-resistive barrier,the space provided and the exterior veneer.These components, in conjunction,shall provide a means of draining water that enters the assembly to the exterior. Exceptions: . 1. A space is riot required where the exterior veneer is installed over a water-resistive barrier complying with section R703.2 which is manufactured in a manner to enhance drainage and meets the 75%drainage efficiency requirement of ASTM E2273 or other recognized -. national standards. 2. A space is not required where window sills are equipped with pan flashings which drain to the exterior surface of the veneer in a through wall fashion.All pan flashings shall be- detailed within the construction documents and shall be of either a self-adhering membrane complying with AAMA 711-07 or of an approved corrosion-resistant material or - a combination thereof.Self-adhering membranes extending to the exterior surface of the ' veneer shall be concealed with trims or other measures to protect from sunlight. • 3. A space is not required where the exterior veneer is manufactured in a manner to enhance drainage and meets the 75%drainage efficiency requirements of ASTM E2273 or other recognized national standards and is installed over a water resistive barrier complying with section R703.2. 4. A space is not required where the exterior veneer is matching an existing exterior finish as in additions, alterations, or repairs. - 5. A water-resistant exterior wall envelope shall not be required over concrete or masonry walls designed in accordance with Chapter 6 and flashed according to section R703.7 or R703.8. • 6. Compliance with the requirements for a means of drainage,and the requirements of �1 Section R703.2 and Section R703.8,shall not be required for an exterior wall envelope that has been demonstrated to resist wind-driven rain through testing of the exterior wall envelope, including joints, penetrations and intersections with dissimilar materials, in - - accordance with ASTM E 331 under the following conditions: 6.1. Exterior wall envelope test assemblies shall include at least one opening, one control joint, one wall/eave interface and one wall sill.All tested openings and penetrations • shall be representative of the intended end-use configuration. - 6.2. Exterior wall envelope test assemblies shall be at least 4 feet by 8 feet in size. 6.3. Exterior wall assemblies shall be tested at a minimum differential pressure of 6.24 • pounds per square foot. 6.4. Exterior wall envelope assemblies shall be subjected to a minimum test exposure duration of 2 hours. The exterior wall envelope design shall be considered to resist wind-driven rain where the results of the testing indicate that water did not penetrate:control joints in the exterior wall envelope;joints at the perimeter of openings penetration; or intersections of terminations with dissimilar materials. •