Flashing at Sills Olean NY

Sill flashing in Olean 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

The Compass Group of Wny
(716) 372-0158
201 N Union St Rm 704
Olean, NY
Itc Inc
(212) 219-3070
88 E Broadway
New York, NY
Urban Strategies Mngmt Corp
(718) 919-8590
294 Sumpter St
Brooklyn, NY
Vertex Business Systems
(212) 888-6463
110 E 59th St
New York, NY
Nick Morante Consultants
(631) 285-6803
233 Union Ave
Holbrook, NY
Hull Electric, Inc.
(814) 368-6118
118 Kennedy Street
Bradford,, PA
Orda
(845) 226-4218
8308 Chelsea Cv N
Hopewell Junction, NY
Rz Management Inc
(914) 834-9242
2001 Palmer Ave Ste 204
Larchmont, NY
777 Management
(718) 676-9490
3857 Kings Hwy
Brooklyn, NY
Terminal One Management Inc
(718) 995-5017
Jfk Airport
Jamaica, 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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