Flashing Factors Oswego 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 Oswego.

Local Companies

Atomic Brick-Interlocking Paving
(631) 261-0554
16 Hasty Ln
Greenlawn, NY
Colonial Masonry Corp
(212) 477-5910
215 Park Ave S Ste 2010
New York, NY
Apollo Restoration Inc
(718) 727-2246
197 Fillmore Ave
Staten Island, NY
Transcorp Construction Corp
(718) 639-3000
7416 Grand Ave
Elmhurst, NY
Gamb's Cement & Masonry Work
(631) 226-2907
269 Cortland St
Lindenhurst, NY
Long Island Pool Scapes
(631) 698-8873
2 Avalon Ct
Ronkonkoma, NY
Fratelli Constr Corp
(631) 207-9164
76 Middle Island Ave
Medford, NY
Darcom Inc
(516) 872-3798
49 Dubois Ave
Valley Stream, NY
Mike Ryan Construction Co
(607) 756-0401
109 South St
Elbridge, NY
T & A Construction Inc
(516) 921-2152
74 Hillside Ln
Syosset, 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
- Home Siding Tips Oswego 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.
- Home Exterior Products Oswego NY
- Green Products - Product Reviews Oswego NY
- Inner Corner at Base of Wall Oswego NY
- Flashing and Sill Products Oswego NY
- High-Efficiency Products Oswego NY
- Eco-Friendly Products Oswego NY
- Flashing at Sills Oswego NY
- Flashing in Siding Installations Oswego NY