Installation Instructions
14
SPECIAL APPLICATION: ONDUVILLA® FLASHING ADAPTER
Custom metal along boom of curb and onto adapter. 
A: Bend metal ashing that will provide a minimum of 
4’’ of coverage on the deck and 4’’ connuing up the 
wall of the curb/chimney. 
B:  Install  and  seal  corners  and  areas  that  will  be 
overlapped as needed.
2
Placing adapter at base of curb, chimney, etc. 
A: Install shingles up to a maximum of 1 shingle height 
or 16’’ away from the curb base. 
B: Place adapter so that one full corrugaon is on each 
side of the curb. 
C: Notch the at poron of the adapter in order to keep 
it in line with the corresponding course of shingles. If 
curb is wider than 1 adapter, then a combinaon of 2 
or more can be used. One adapter can be used on curb 
widths of up to 18’’; each addional adapter will add 
24’’ of usable length.
1
Metal pan along sides of curb. 
A: Bend custom metal pan ashing to extend up the 
curb a minimum of 4’’ (if possible 6’’ is recommended). 
Metal should have a base that allows a 1/2’’ return to 
remain vercal under the rst corrugaon away from 
the curb. This pan will run from 6’’ beyond the top of 
the curb to 4’’ below the boom corner. 
B: Cut and bend the metal at the corners to provide a 
water ght seal. 
C: At the overlaps, a seal should be applied to provide 
adequate protecon. This should be repeated for each 
side of the curb.
3
Install back metal pan. 
A:  Bend  a  metal  pan  that  will  correctly  overlap 
aforemenoned side  pans  and provide a  minimum 
of  4’’  up  the backside  of  the  curb/chimney  and  a 
minimum of 12’’ on the deck. 
B: Install shingles and Closure Caps along back in such 
a way as to provide a minimum of 3’’ of non-covered 
ashing  and  a  minimum  of  6’’  clearance  between 
fasteners and the backside of the curb/chimney.
4
The ONDUVILLA® Flashing Adapter can be used in a variety of locaons on the roof in order to provide proper water ghtness.  
This may include chimneys, venlators, skylights or other roof penetraons.










