Flashing Factors West Hempstead NY

Rowlock brick sills contain many joints and are particularly susceptible to water penetration. For this reason, I do not recommend their use in freeze-thaw environments in West Hempstead.

Local Companies

Alex Manuele Stairbuilder
(212) 233-9159
67 Murray St
New York, NY
GLOBAL CONSTRUCTION
914 406 5513
838 MCLEAN AVE
YONKERS, NY
DL Restoration & Builders Corp
718 275 3995
107-12 71st Road
Forest Hills, NY
Gotham Builders
800-444-4923
203- 20 Rocky Hill Road
Bayside, NY
Haroon Contracting Inc
(646) 667-5381
1578 williamsbridge road
bronx, NY
Olim Construction Inc.
646-294-5077
8510 34th Ave Apt.420
Jackson Heights, NY
Dream Awnings & Signs
(718) 707-0140
36-07 21Street
Long Island City, NY
NY Construction & Stone Inc.
718 204-6100
2145, 23 Street
Astoria, NY
AM Shield Waterpoofing
516 294-8400
33 Albertson Ave.
Albertson, NY
Uvs Construction
(718) 554-0426
Beach 74Th St
Arverne, NY
Data Provided by:
  

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: October 1, 2005

Should flashing be used beneath rowlock brick window sills? If through-wall flashing is installed beneath these rowlocks, how are the sills anchored? If the anchors penetrate the flashing, does this lead to deterioration of the masonry below in freeze-thaw environments?

Rowlock brick sills contain many joints and are particularly susceptible to water penetration. For this reason, I do not recommend their use in freeze-thaw environments.

When they are used in freeze-thaw environments, however, the flashing beneath them is critical to prevent water from saturating the top of the masonry wall below. Snow and ice collects on the rowlock sills. When they melt, water can penetrate the sills and refreeze, resulting in deterioration. This scenario is a particular problem with the anchorage of these sills because they break apart.

When rowlock sills are used, they can be anchored using galvanized corrugated wall ties in the head joint between every fourth to sixth brick unit. When possible, I prefer that these anchors be attached to the backup wall on the vertical face, behind the sill.

It also is possible to extend flat strap anchors through the flashing. However, any penetrations through the flashing must be carefully sealed.

Click here to read full article from Masonry Construction

Related Articles
- Home Siding Tips West Hempstead NY
After installing window and door trim, either make flashing using a sheet metal brake or apply flashing pre-bent to the correct trim size. Nail your flashing to the wall, not to the trim, because if you put holes in the flashing, you've defeated its purpose.
- Flashing at Sills West Hempstead NY
- Flashing in Siding Installations West Hempstead NY
- Eco-Friendly Products West Hempstead NY
- High-Efficiency Products West Hempstead NY
- Green Products - Product Reviews West Hempstead NY
- Home Exterior Products West Hempstead NY
- Inner Corner at Base of Wall West Hempstead NY
- Flashing and Sill Products West Hempstead NY
Related Local Event
Long Island Building & Facility Maintenance Show
Dates: 5/5/09 - 5/8/20
Location: David S. Mack Sports & Exhibition Complex - Hofstra University
Hempstead, NY
View Details