Flashing Factors Amityville 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 Amityville.

Local Companies

Great Neck Saw Manufacturers
(516) 746-5352
165 East Second Street
Mineola, NY
slr general construction
1646 420 2006
173 morton blvd
plainview, NY
BELLA PORTA LLC.
888-366-7748
92 Front street
Hempstead, NY
Pro Qualtiy Home Improvements Inc.
631 393 6812
500 Bi-County Blvd.
Farmingdale, NY
Total Home Construction Corp (since 1989)
(516) 822-4747
1120 Old Country Rd
Plainview, NY
Elmont glass
516 248 8860
2145 jericho tpke
Garden city park, NY
Vintage Homes, Inc.
917-642-2390
15 Cuttermill Road
Great Neck, NY
junk junkies, junk removal, nyc-stay clutter free, live green!
888-433-4133
229-19 merrick blvd suite345
jamaica, NY
VISCO ASBESTOS REMOVAL
516 547 2510
235 ROBINS LA
SYOSSET, NY
Gotham Builders
800-444-4923
203- 20 Rocky Hill Road
Bayside, 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 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