Flashing Factors Kingston 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 Kingston.

Local Companies

M. J. Posner Construction Co., Inc.
(845) 255-7187
161 State Route 208
New Paltz, NY
Winter Sun Construction Inc.
(845) 256-1031
43 North Chestnut Street
New Paltz, NY
Jim Whitney Home Improvements
(845) 255-2773
75 Dug Rd.
New Paltz, NY
Erdman Anthony & Associates, Inc.
(845) 883-5078
60 Park Lane, Suite 1
Highland, NY
Mike Mattera Trucking & Crane Ser.
845-706-3085
PO Box 688
Saugerties, NY
Willin Contracting Inc
845-775-8571
241 MacDaniel Rd
Shady, NY
Ohioville Acres
(845) 255-4554
26 Cook Lane
Gardiner, NY
Ash-N-Oak Home Improvements
(845) 750-5330
19 Hummel Road
New Paltz, NY
M. J. Posner Construction Co., Inc.
(845) 255-7187
161 State Route 208
New Paltz, NY
Catskill Mountain Stone Work & Landscape Design
(845) 399-1448
24 Albright Lane
Stone Ridge, NY

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
- Flashing and Sill Products Kingston NY
We've all seen the images of mold-infested homes that headlined media and courtrooms a few years ago–or experienced it firsthand–with faulty window installation often front and center as a main point of failure.
- Inner Corner at Base of Wall Kingston NY
- Green Products - Product Reviews Kingston NY
- Flashing in Siding Installations Kingston NY
- Eco-Friendly Products Kingston NY
- High-Efficiency Products Kingston NY
- Home Exterior Products Kingston NY
- Home Siding Tips Kingston NY
- Flashing at Sills Kingston NY