1728 100TH ST SW 2024-01-04 - Laserfiche WebLink

Mr. Rakeeb Khan October 26, 2022 "'Page 2�� equipment efficiency per selected option 3.6. WSEC Table R406.3 5. The correction is shown on page A7 under item 5. The minimum equipment efficiency is: 10HSPF. 6. See the selected energy credits on Sheet A7. The drawings should specify the minimum equipment efficiency per selected option 5.5. WSEC Table R406.3 Correction is on page A7 under item #6. Electric heat pump water heater meeting the standards for Tier III of NEEA's advanced water heating specification Structural 1. The walls at the stairway appear to be up to 18 feet in height. The wall height exceeds the prescriptive limitation of the IRC and the shear walls at the location of the stairway do not meet the shear wall aspect ratio of 3.5 per Table 4.3.4 of the Special Design Provisions for Wind and Seismic (SDPWS). Shear walls should be updated and calculations substantiating the design should be submitted for review. R106.1.1, R602.3.1 Updated calculations are provided with this response letter. The wall will be standard framed with a wind beam to span the gap in the floor diaphragm. 2. Continuing with the previous comment, the walls at the stairway should be balloon framed from floor to roof to prevent a hinge at the 2nd floor level or provide a wind beam to resist horizontal wind loads acting on the wall. Submit calculations substantiating the design for review. R106.1.1, R602.3.1 Wind beam added 3. It appears that some of the glulam beams are exposed to weather. Plans should specify the exposed glulam beams to be pressure treated with preservative or manufactured from naturally durable or preservative -treated wood. R317.1.5 Note added for pressure treatment of glulams for above grade, exterior application 4. Details for the deck guardrail should be provided. The guards should comply with IRC Section 11/09/22 11 01 AM