Integrating Parapet and Roofing Flashing Babylon NY

On the inside face of a parapet or wherever a masonry wall intersects a lower roof, I have seen cases where the masonry flashing exits the wall one or more courses above the top of the retaining bar for the roof base flashing.

Local Companies

NEW YORK CITY BEST CONSTRUCTION CORP.
347-26-9950
25 BEECHWOOD PLACE
Massapequa Park, NJ
Leak Enders
516-620-4575
584 Mineola Ave
Carle Place, NY
Anthony's Roofing
(631) 951-9117
27 Madison Ave
Brentwood, NY
Top Quality Roofing Inc
(631) 888-0613
644 N Richmond Ave
Lindenhurst, NY
Dicarlo Siding & Roofing Co
(631) 897-3737
97 Orange St
Central Islip, NY
captain soot home maintenance and repair
631 842 2336
60 baylawn ave
copiague, NY
Home Improvement Man Inc
(516) 681-3737
92 Ketchams Road
Hicksville, NY
Done Deal Gutters & Constr
(631) 261-2385
144 Broadway
Greenlawn, NY
Gary Owens Construction Inc
(631) 427-8679
92 Fort Hill Road
Huntington, NY
Tipperary Construction
(516) 679-2215
2567 Mermaid Ave
Wantagh, NY
Data Provided by:
      

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: March 1, 2001

On the inside face of a parapet or wherever a masonry wall intersects a lower roof, I have seen cases where the masonry flashing exits the wall one or more courses above the top of the retaining bar for the roof base flashing. Will this cause any problems? There can be problems whenever the roof base flashing and the masonry through-wall flashing are not properly integrated. This is especially true if the masonry flashing stops or is held back slightly at the face of the masonry. If the flashing does not extend beyond the face of the wall, there is a chance the water may run around the end of the flashing and re-enter the wall below. Another good reason for projecting the through-wall flashing beyond the face of the wall is to prevent the outlet edge of the masonry flashing from being inadvertently covered when the roof membrane and roof base flashing are replaced. This would seal off the masonry flashing and route the water under the roofing. (DonÆt laugh; IÆve seen it happen.)

But there can be problems even when the masonry flashing does project beyond the face of the wall if it exits more than one or two courses above the roof base flashing. When water flows across the face of the wall or out from the weep holes, it will flow over the masonry between the bottom of the masonry flashing and the top of the roof base flashing.

Click here to read full article from Masonry Construction

Related Articles