Flashing at Sills Wappingers Falls NY

Sill flashing in Wappingers Falls controls water that penetrates through the masonry sill and helps control water penetrating the perimeter sealant joint around the windows. The sill flashing will prevent water from saturating the top of the masonry beneath the sill.

Local Companies

JR Electric Service Inc.
(845) 255-4088
PO Box 243
New Paltz, NY
McQuade Tom
(845) 463-2522
265 New Hackensack Rd
Wappingers Falls, NY
Hudson Marketing
(845) 632-2686
53 Degarmo Hills Rd
Wappingers Falls, NY
Dolphin Management Company Llc
(212) 488-1590
156 W 56th St
New York, NY
Tiger Management Co
(516) 671-7617
291 Lattingtown Rd
Locust Valley, NY
Capitol Electrical Contracting, Inc.
(845) 255-7088
286 McKinstry Road
Gardiner, NY
Mid-Hudson Park Management Inc
(845) 297-2109
18 Clinton St
Wappingers Falls, NY
Glocal Vantage Hudson Valley
(845) 297-4848

Wappingers Falls, NY
E & C Management Inc
(212) 768-0409
221 W 38th St
New York, NY
Health Strategy Group Inc the
(518) 392-6770

Chatham, NY

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: July 1, 2000

Why do people install flashings beneath masonry sills? Are they required if a single-piece stone sill is used?

Sill flashing controls water that penetrates through the masonry sill and helps control water penetrating the perimeter sealant joint around the windows. The sill flashing will prevent water from saturating the top of the masonry beneath the sill. These flashings are especially important when using rowlock brick sills or other sills that have many joints. Multiple joints increase the risk of developing excessive water penetration into the masonry below.

In hot humid climates, sill flashings may also be helpful in preventing hot humid cavity air from condensing on the underside and perimeter of the window. In this case, the sill flashings should be integrated with a cavity seal at the window head and jambs.

When using a single-piece stone or precast concrete at a window, the flashing is less important. Very little water will penetrate a single-piece stone or concrete sill. Flashings, however, are still useful in controlling water penetration at perimeter sealant joints or preventing hot humid cavity air from reaching the perimeter of the window. Where flashing is not used, the stone or precast concrete sill should project beyond the face of the masonry and contain a drip. This will prevent water penetration at the joint beneath the sill. This joint will often crack due to differential m...

Click here to read full article from Masonry Construction

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