Flashing Factors Uniondale 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 Uniondale.

Local Companies

B & B Construction
(212) 661-6008
420 Lexington Ave
New York, NY
Personal-Touch Home Care Inc.
(718) 468-2500
186-18 Hillside Avenue
Jamaica, NY
Durafford Construction & Waterproofing, Inc.
General Contractor
E. Elmhurst, NY
LSB Construction, Inc.
(917) 338-4960
1590 York Avenue, Suite 3B
New York, NY
Uvs Construction
(718) 554-0426
Beach 74Th St
Arverne, NY
Arcon Construction Services
(212) 752-3261
411 E 57th St
New York, NY
Dream Awnings & Signs
(718) 707-0140
36-07 21Street
Long Island City, NY
slr general construction
1646 420 2006
173 morton blvd
plainview, NY
CWC Plumbing and Heating LLC
90-04A 70th Avenue
Forest Hills, NY
Gotham Builders
203- 20 Rocky Hill Road
Bayside, NY
Data Provided by:

Provided By:

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 Exterior Products Uniondale NY
The Distinction Doors Signature Series of fiberglass entry doors has been expanded with the Rustic Collection. The Southwestern-style doors use the manufacturer's Hydroshield Technology to protect against moisture and water damage and prevent rotting and rusting.
- Home Siding Tips Uniondale NY
- Flashing in Siding Installations Uniondale NY
- Eco-Friendly Products Uniondale NY
- Green Products - Product Reviews Uniondale NY
- Inner Corner at Base of Wall Uniondale NY
- High-Efficiency Products Uniondale NY
- Flashing at Sills Uniondale NY
- Flashing and Sill Products Uniondale 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