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RED HILL+-ENGINEERING +
Red Hill Engineeringo LLC
Glenwood Springs, CO 81601
Renovation Renai r Instruction
RI#:24100401
October 4,2024
Proiect: Garage Attic Renovation
68 Midland Point Rd
Carbondale,Co 81623
Attn: Garfield County Building Department
108 8th Street, Suite +01-
Glenwood Springs, CO 81601
Client: Daniel Landeros
Landeros High Altitude Renovations LLC
1164E 18th St
Rifle Co,81650
landeto shighalitude@ gmail. com
970-930-0385
To whom it may concern,
Please accept the following repair instruction letter, prepared for Landeros High Altitude
Renovations, as certification that the non-compliant joist penetrations for plumbing lines (as
shown in the appended photo) will be repaired according to the procedures outlined below. These
repairs will restore or exceed the structural integrity of the floor joists compared to their pre-
renovated condition.
As-Renovated Conditions (see nhoto)
During the garage-attic renovation, penetrations were made in the garage ceiling I attic
2x10 floor joists to accommodate plumbing lines. These penetrations were not performed in
accordance with applicable code requirements. To remedy this situation, the following repair
instructions have been developed to restore the joists to a structurally sufficient state.
Renair Instructions (sister 2x6 to existing 2x10's)
Sistering Joists
o Material: New #2 grade or better 2x6 lumber
O The 2x6 sister must extend at least 3 ft beyond either side of the centerline
non compliant for a
Alignment: The new 2x6 should be aligned flush with the bottom edge of the 2x10 joist.
Provide 2x6 sister joist at each location where non-compliant penetrations exist.
O
o
Fastener Installation
o 3-inch structural screws or l6d nails shall be used in a staggered pattern, installed from
both sides of the sistered joists (exiting 2xl0 & new 2x6)
Fastener Spacing:
o Fasteners shall be spaced at 12- on center (c-c) along both the top and bottom
edges of the 2x6 entering from BOTH the 2x10 side and 2x6 side.
o The fasteners on one side shall be staggered 6 inches off-center from the fasteners
on the opposite side, ensuring the fasteners from both sides do not align directly
through the joist.
o Maintain -2" of clear space from the end of the sister joist to the first fastener.
o
Notching new 2x6 for PVC PiPe
o NOTE: Where needed, a maximum 3/o" deep by 2" wide notch may be made on the top
side of the 2x6 sister joist to accommodate PVC piping'
o No other penetrations are allowed within the new 2x6 sister joists.
Water Supply Line Relocation
The water supply lines (currently in the area that will be covered with sistered 2x6 joists) must be
relocatedAND ensure aminimum of 2" inches clear distance to any other 2x10 joist edge or other
existing penetration, following building code specifi cations'
Final Inspection
All repairs and final conditions should be inspected and approved by the building department.
please feel free to contact me for further clarification or if additional information is
required.
Sincerely,
Red
Red Hill Engineering
Glenwood SPrings, CO 81601
97 0.456.5435 I mike@tedhilIenginee"i'g'com
a
Date: 1010412024
APPENDIX A: reference as-renovated photo
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Red Hill Engineenng
Glenwood Springs, CO 81601
97 0.456.5435 I mike@redhillengineering.com