PRE-DRILL PILOT HOLES FROM UNDERNEATH THE DECK AND
ATTACH THE CURB USING 3” - #10 HEX HEAD SCREWS
TOE-NAIL NEW CURBING TO EXIST. WOOD. IF UNDER-
ROOF WOOD BLOCKING IS USED, INSTALL 9” OR 12” GALV.
STRAPPING (AS SHOWN)
MUST USE PRESSURE TREATED LUMBER (OR PREFAB SHEET
METAL) FOR CURBS. USE SMALL CLIP ANGLES FASTENED WITH
EXPANSION BOLTS TO ANCHOR CURBS TO CONCRETE
A
B
Metal
Roof
Wood
Roof
Concrete
Roof
Attaching Options for Different Roof Types
Securely fasten curb(s) to the roof bracing structure to give it strength and support
for the unit (dome, light well and lenses).
Attachment of curbs should meet with all building codes and requirements.
If roof curbs require additional reinforcing at any opening, such details will be indicated
and must be signed off by building owner.
IF UNDER-ROOF
BLOCKING IS USED
SECURE CURBING
(TO NEW BLOCKING)
W 1 1/4” GALV. STRAPPING
MIN. (2) EACH SIDE
INDICATE
ROOF PITCH
CRICKET
(IF REQ’D)
8” MIN
MAINTAIN TOP OF CURB
TRUE PLUMB AND LEVEL
TOP SURFACE TO BE SMOOTHED
TYPICAL (4) SIDES
NEW WOOD CURB
CUT FROM 2X8
OR LARGER
1” FROM TOP
EXTEND
FLASHING
FLASHING
(4) SIDES
TOP OF
ROOF
UNDERNEATH
EXSIST. ROOF
46 1/2” (4) SIDES
MAINTAIN CLEAR
ALL THE WAY DOWN
Attaching Curb to Roof
C
TOLL FREE:(888)329-2705 [email protected] www.eco-smart.com
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Eco-$mart, Inc.
