HomeMy WebLinkAbout613 Strachan Dr - Special Inspections/Engineering - 07/03/2013Grown �n9ineerting, ttc.
Strc+ctc+rccl .fin-gtivi.eerinq �j Snsgections
July 3, 2013
Pmwi Traditinnc
8106 Bruns Drive a l 3
Fort Collins, CO 80525
Re: Pergola/Roof Cover Framing for Rear Patio at 613 Strachan Drive, Fort Collins, CO
Crown Engineering, llc. Project No. 23-01-14-01
Dear Mr. Roth:
As requested, we have reviewed the Pergola/Roof Cover framing of the rear patio at the above
referenced residence. The framing consists of 16' long 2x10's spaced at 12" on center. The
2XI0'S support a roof for the first eight feet adjacent to the house, in other words, the first eight
feet of the structure is a roof cover system and the second half of the structure is a pergola shade
system. The upper roof system that covers the first eight feet of the structure consists of 2x6
rafters spaced at 24" on center. They are supported on the 2x10's below and hung to a 2x ledger
attached to the studs on the side of the house. The 2x10's are supported on the outside by a 2-
2x10 beam set atop engineered 6x6 posts. The end of the 2x10's against the house is hung to a
2x10 ledger attached to the sheathing and rim board of the house with 3/8" diameter by 5" lag
screws. It is our recommendation that at this location, the rim board be further attached to the
house cantilevered joists with Simpson L70's or LS70 reinforcing angles.
The 6x6 posts were set on top of the patio slab directly over existing concrete piers. The
excavation revealed approximately 12"-14" diameter piers that extended to approximately frost
depth, around 30" below finished grade.
It is our opinion that the pergola/roof cover framing has been framed per generally acceptable
construction practices and care. If you have any questions, please do not hesitate to contact me
at (970) 691-4239.
Sincerely, 4�ap4•REG/s
Grvu�n .�su�i"v e'eriv� Ml`lc-ip�
1 48159
ent
Structural Engineer
Main Office
524 Stover Street
Fort Collins, Colorado 80524
Phone: (970) 498-9537
Cell: (970) 691-4239
Fax: (970) 221-1521 e-mail: revessf5@msn.com