2019-0462_Dawson_Deck-Response.docxDate:May 15, 2019
To:Eric Carter, Plans Examiner
From:Jon Dawson
RE:Plan Check: BLD2019-0462Project Address: 1034 A Ave. S.Scope: New Deck, SFR, VB Construction
Below are the responses to the items identified from your preliminary review. I also appreciate being pointed to MyBiuildingPermit.com. Even though there had been a discussion about
this some time ago, I had forgotten about it.
Due to some deficiencies in the original design, the structure has been modified to better meet the building code requirements. I believe this has helped overcome some of the design
gaps.
Thank you for your time and consideration.
Jon
The proposed 2x8 HF #2 joist exceed the limits of stress and bending. Please take into consideration the “wet service”, “incising”, plus therequired minimum loading of 10PSF of “dead
load” and 60 PSF of “liveload when sizing your framing members.
Response: The joists have been increased to 2x10 incised at 12” OC. They have also been rotated to be East-West to address item #2. This is noted on page 2 of the revised plans.
The proposed outer 4x10 HF #2 beams spanning approximately 13’,exceed the limits of stress and bending. Please take into considerationthe “wet service”, “incising”, plus the required
minimum loading of 10PSFof “dead load” and 60 PSF of “live load when sizing your framingmembers.
Response: The number of beams have been reduced to one going North-South at the West end of the new deck. This is noted on pages 2 & 3 of the revised plans. The total number of incised
posts under the beam was increased to 4 in order to address the span issues to meet code.
The proposed center 4x10 HF #2 beam spanning approximately 13’,exceed the limits of stress and bending. Please take into considerationthe “wet service”, “incising”, plus the required
minimum loading of 10PSFof “dead load” and 60 PSF of “live load when sizing your framingmembers.
Response: I believe this is a repeat of the previous line and should be addressed with the revised plans.
The proposed center beam and one of the outer beams appear to beattached to the existing home. The connection and how the beam will besupported do not appear to have been indicated.
Please provide detailson how the point load of the beam will be supported on the plans.
Response: Now understanding the challenge, the deck structure has been revised, changing the direction of both the beam and joists. This is primarily noted on page 2 of the revised
plans.
The plans do not appear to have the required lateral tension tiesindicated on the plans. Section R507.2.4 of the 2015 InternationalResidential Code requires a minimum of 2- 1500# capacity
ties or 4 evenlyspace ties with a minimum of 750#’s each. Please provide the type andlocation the tie on the plans.
Response:The solution is now noted on page 2 of the new plans. A total of 4 Simpson Strong Ties (DTT1Z-KT) installed (2) on side of joists to connect to existing decking (double joist
required on existing deck) and (2) under joists and into existing wall header of house. Outside ties to be placed within 2’ of end with remaining 2 ties to be spaced evenly between.
The proposed pier post design indicates an 18”x18”x12” footing. Thesefootings must be a minimum of 18” below grade to comply with frostrequirements and have a minimum of 2- #4 rebar
in each direction. Pleaserevise the footing details to include these details.
Response: This has now been noted on page 3 of the plans.