DNS RESUB1 BLD2023-0791+BLD RESPONSE Letter+3.18.2024_10.50.28_AM+4140958C
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March 15, 2024
City of Edmonds Washington
Planning and Development Department
Attention Mr. Donovan Akau
121 5th Ave N
Edmonds, WA 98020
Re: Alderra Condominiums - Enclosure Rehabilitation Projects
Plan Check: BLD2023-0791
Project Address: 522 Alder ST #101
Edmonds Project: Alderra Condos- Structural Roof Repairs & Re -Roof
Dear Mr. Akau:
This letter is to provide responses to your Plan Review Comments Letter dated 8/1/2023 regarding
the property noted above. Please find the following responses:
Plan Check Item #1: Please provide structural calculations for the repair/replacement of
the structural components for the scope of work that is being performed for this project.
Response to Comment #1: The work proposed by this project is to reinstate damaged
framing and/or sheathing in like -kind when encountering through the course of the work
per the provisions of Chapter 7 Alterations - Level 1 of the 2021 Washington State Existing
Building Code. Should major modifications to the structure be required upon discovery of
major damage that cannot be remediated in like kind via the allowances of Chapter 7,
engineering will be performed and submitted as required. At this time, our understanding
of the existing buildings' condition does not lead us to believe that such engineering
services will be necessary and associated calculations are not being submitted as a result.
Annotation related to this Plan Check item has been added to sheet A000 and is dated 18
Mar 2024.
2. Plan Check Item #2: Please clarify the fire rated assembly for the areas of roof that has
crickets and o ver framing.
Response to Comment #2: Based on the original construction documents, the building has
a sprinkler system which we understand to be an NFPA 13R-compliant system. The
original construction records available for the project identify the construction Type as V-
1 hour which is equivalent to the current Type VA. Table 601 requires a 1-hour fire -rated
assembly based on this construction type. The record drawings and our on -site
observations have identified two layers of 5/8" gypsum board applied directly to framing.
The project records do not identify a specific UL or GA rated assembly for the construction
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of this assembly. As a result, we have assumed that any work to reinstate impacted
gypsum board is Gypsum Association GA File No. RC 2601. This has been noted on
Sheet A101 and is dated 18 Mar 2024.
3. Plan Check Item #3: Please clearly demonstrate on the plans that this project would/will
not need to meet the requirements of RCW64.55 as seen below.
Pursuant to RCW 64.55, all applications for construction of multi -unit residential buildings
must include building enclosure design documents that identify the building enclosure,
including but not limited to, waterproofing, weather proofing and/or otherwise protected
from water or moisture intrusion. The building enclosure documents must contain a
stamped statement by the person stamping the building enclosure design documents
stating, in substantially the following forma "The undersigned has provided building
enclosure documents that in my professional judgment are appropriate to satisfy the
requirements of RCW 64.55.005 through 64.55.090. "
Additionally, all multi -unit residential buildings are required to ha ve the building enclosure
inspected by a qualified building enclosure inspector during the course of construction.
This inspection is to be completed by a third party, independent inspector. The City may
not issue a Certificate of Occupancy until the qualified, third party independent inspector
prepares a report and submits to the building department a signed letter certifying that the
building enclosure has been inspected during the course of construction and that the
construction is in substantial compliance with the building enclosure design documents.
The requirement for third party inspection needs to be specified on the plans.
Response to Comment #3: Annotation has been added to Sheet A000 dated 18 Mar 2024
Should you have any questions or concerns, please direct them to Jim Riley of Certa Building
Solutions at jriley@certasolutions.com.
Yours truly,
Certa Building Solutions
;imRiley
Director of Architecture
AIA, NCARB, LEED AP BD+C
Building Science Specialist
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