Patio-Cover-AttachedCity of Cypress
Community Development: Building Division
5275 Orange Avenue
Cypress, CA 90630
(714) 229-6730
ATTACHED PATIO COVER
Rafter Size ___x____@____" o.c.
Span ___'-____"
(See Page 2 for Rafter Span Table)
Slope ____" per ft.
(slope 1/4" per ft. minimum)
Remove grass & weed
to natural grade Sand Fill
Post Anchors
(See Detail D)
Beam
Post/Beam/Brace
Conn. (See Detail B)
CONSTRUCTION SECTION
ELEVATION
Finish Grade
Eave ____"
12 2x Blocking
2x Blocking
Rafter to Beam
Connection
Post Anchors
(See Detail D)
3-1/2" Concrete slab
#3 @ 24" o.c. each way
3-1/2" Concrete slab
#3 @ 24" o.c. each way
Post Size: ___x____ spacing ___'- ____"6'8" Minimum Height7'10" Min. Ceiling Height(See Detail C)2x ___ Ledger
Beam size: ___x____
(See Page 2 for Beam
Span Table)
Ledger:
(See Detail A)
Existing
Building
Existing
Footing/Slab
Roofing Material: (Check One)
Light Weight Roof: Fiberglass, lath or 2x2’s
or other spaced boards, other materials
provided the material does not exceed 6
pounds per square foot.
or
Normal Weight roofing < 2:12, 300# rock or
gravel over 3 layers of 15 lb felt hot mopped
between or approved built-up roof.
or
For slopes greater than 2:12, composition
shingles may be used with assemblies
specified by the manufacturer.
or
__________________________________
__________________________________
__________________________________
__________________________________
Brace
(See Detail B)
ADDRESS:PERMIT NO:
Existing Rafter
1/2"x5-1/2" Lag bolts into studs
at 16" o.c. staggered (16' max.
rafter span, > 16' use 2 lag bolts
at 16" o.c., pre-drill all holes
3/8" dia.)
(NOTE: Lag bolts must go
into 2x framing and holes
for lag screws must be per-
drilled)
Existing rafter tails
may be cut off
Approved Column Cap, or T-Strap
both sides, or post cap installed per
manufacturer’s specifications
26 Ga. galv. flashing
at ledger w/ caulking
2x Ledger
Patio Rafter
Notch
4x4 Knee brace
24" MinimumTypical4x Beam
45O
Approved
joist hanger
Connection to fascia
not allowed without
engineering calculations
Approved roofing
material (see pg.2)
Approved post
connector with
gav. stl. plate
Footing Size Table
6" Min.
2" Min.
12" Min.
1" Min. raised conc. at
post base or standoff
Concrete
footing
6d common nails at
6" o.c. to 2x blocking
Fascia
(optional)
Rafter
GradeMaximum of 4x rafter
depth of 32” max.
3-8d Toenails at
rafter to beam
and at blocking to
beam and A35’s
at 32" o.c.Post/Beam Conn.
See Detail B
See Table
Post
Post
Beam
Existing
stud wall
DETAIL A DETAIL B
DETAIL DDETAIL C
4x4 Post
Min.3" (Typ.)
5/8" Dia. Bolts w/ nut
& washers, hole shall
be no more than 11/16"
dia.
Footing Size Max. Supported Roof Area
12" square
16” square
20” square
24” square
50 sq. ft.
100 sq. ft.
150 sq. ft.
200 sq. ft.
(E) Building
Rafter SpanBeam Span or Post Spacing Dim.DimensionLedger
Roof Edge
Rafter Spacing (in)Beams
ColumnsRoof area supported
by a single post is equal
to 1/2 Beam Span times
1/2 Rafter Span plus eave
RAFTER SPANS (DFL #2)RAFTER SPANS (DFL #2)
Rafter
Size
Rafter Spacing
12"16"24"32"48"
2x4 7'-9"7'-1"6'-2"
2x6 12'-3"11'-1"9'-3"8'-0"6'-6
2x8 16'-2"14'-8"11'-8"10'-2"8'-3"
2x10 20'-0"18'-9"14'-4"12'-5"10'-1"
2x12 20'-0"20'-0"16'-7"14'-4"11'-9"
4X6 16'-3"14'-9"12'-11"11'-6"10'-0"
4X8 20'-0"19'-5"17'-0"15'-3"12'-8"
4X10 20'-0"20'-0"18'-11"15'-5"
4X12 20'-0"17'-11"
4X14 20'-0"
Rafter
Span
Beam Span
4x6 4x8 4x10 4x12 4x14 4x16 6x8 6x10 6x12 6x14
8'10'-5"13'-9"16'-9"19'-7"20'-0"16'-7"20'-0"
10'9'-8"12'-4"15'-1"17'-6"19'-7"20'-0"15'-4"18'-6"20'-0"
12'8'-11"11'-3"13'-9"16'-0"17'-10"20'-0"14'-0"16'-9"19'-5"
14'8'-3"10'-5"12'-9"14'-9"16'-6"19'-0"12'-11"15'-8"18'-0"20'-0"
16'7'-8"9'-9"11'-11"13'-9"15'-5"17'-10"12'-1"14'-8"16'-10"19'-9"
18'7'-3"9'-2"11'-3"13'-0"14'-7"16'-9"11'-5"13'-9"15'-9"18'-7"
20'6'11"8'-9"10'-8"12'-4"13'-10"15'-11"10'-9"13'-1"15'-0"17'-8"
Loading: DL = 10 psf. (Roofing Material = 6 psf max.)
LL = 10 psf.
Loading assumes 3/4” ply for spans <24” and 2x
decking for spans >24”. Other designs are possible
but evidence must be submitted to establish their
adequacy. No stucco finishes or roofing material
exceeding 6 psf w/o engineering. Footing bearing
pressures account for load duration and allowable
bearing pressures of 1500 psf.
INSTRUCTIONS
1. A building permit for a patio cover may be obtained using these City standard drawings. Simply fill in the
blanks and information requested on these plans.
2. Draw a plot plan (instructions can be found on the City’s “Sample Plot/Sit Plan” handout,) and bring three
copies of the completed drawing to Building and Safety where it can be reviewed for Building and Zoning
code requirements and permit issuance.
3. Deviations from the construction and designs shown in these drawings will require complete plans and
details and must be reviewed by a plan check engineer prior to obtaining a building permit.
GENERAL NOTES
1. A patio cover is a one story structure that does not exceed 12 feet in height above the adjacent grade.
2. Patio covers shall be used for recreational, outdoor living purposes only and shall not be used as carports,
garages, storage rooms or habitable space.
3. The longer side and one additional side of the patio shall be 65% open, below 6' 8" above the floor Openings
may be enclosed with insect screening, approved translucent or transparent plastic not more than 1/8" thick
or glass conforming to the provisions of Chapter 24 or any combination of the foregoing.
4. A one hour firewall is required when the exterior face of post/wall is located less than 5'0" from the property
line.
5. Unless a licensed engineer or architect provides structural calculations to justify it, no patio cover/structure
will attach to or rely upon the existing rafter tails or roof projection for the purposes of supporting the new
structure.
6. Patio covers are for outdoor living only. Use of these structures as habitable space requires a building
permit and alterations to both the patio cover and the house to comply with code requirements. Conversion
to habitable space may require upgrades to your foundation system, roof framing, electrical, fire life safety
and many other items. Also you may need to provide a vapor barrier under the slab, a reinforced slab and
footing, new wall bracing, heating, energy forms and insulation for the space to be converted.
7. These drawings are examples of the way an open patio cover may be installed. Other methods may be
used provided they are approved by this Department prior to installation. All material types and sizes are
subject to the approval of this Department.
8. Posts may be supported on a 3-1/2" thick reinforced concrete slab on grade when posts support a combined
live and dead load less than 750 pounds per column. Approved connectors between post and concrete slab
shall be capable of withstanding uplift and wind forces.
TYPICAL ABBREVIATIONS
Conc.
Conn.
DFL
Dia.
Dim.
Ga.
Galv.
=
=
=
=
=
=
=
Concrete
Connection
Douglas Fir Larch
Diameter
Dimension
Gauge
Galvanized
DL
LL
psf
psi
o.c.
stl.
>
=
=
=
=
=
=
=
Dead Load
Live Load
Pounds per Square Foot
Pounds per Square Inch
on center (spacing)
Steel
Greater Than
REQUIRED INSPECTIONS
1. FIRST INSPECTION: shall be after excavation for the footing (before any concrete is poured) and verification
of the solid wood backing for the ledger bolting.
2. SECOND INSPECTION: shall be the framing inspection when all framing has been completed. The roof
sheating and nailing will be inspected at this time.
3. THIRD INSPECTION: will be the final inspection after the roof covering has been installed.
CONSTRUCTION NOTES
1. Roof Covering shall be Class A or B. Rafters shall be sized based on the table shown on page 2. Patio
covers utilizing this sheet shall have roofing assemblies weighing less than 10 psf, including asphalt or
fiberglass shingles, cap sheets, build-up roofs, hot mopped assemblies and some light weight roofs. Use
of heavy weight roofs including concrete, clay or slate tile or stucco soffits require calculations and plans
by a licensed engineer.
2. Rafters shall be marked Douglas Fir Grade #2 or better, beams shall be marked Douglas Fir Grade #1 or
better.
3. Concrete shall have a minimum strength of 2500 psi in 28 days.
4. Framing hardware shall be ICC approved for the intended use and installed per manufacturer’s specifications
using all recommended fasteners.
5. Roof sheathing shall be continuous over 2 or more rafters, face grain shall be perpendicular to supports and
maximum span shall be as follows:
SHEATHING SPAN RATING MAXIMUM SPAN NAILING
3/8" CDX Plywood 20/0 16" o.c.6d common or deformed shank
1/2" CDX Plywood 24/0 24" o.c.6d common or deformed shank
5/8" CDX Plywood 40/20 32" o.c.8d common or deformed shank
3/4" CDX Plywood 48/24 36" o.c.8d common or deformed shank
1-1/8" CDX Plywood 60/48 48" o.c.10d common or deformed shank
1x nominal lumber 24" o.c.2-8d at each lap
2x Decking 48" o.c.2-16d at each rafter
(all nail spacing for plywood sheathing shall be 6" on center (o.c.) at edges and 12" o.c. in the field)