Flashing at Sills New Hartford NY

Sill flashing in New Hartford 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

Glen F Kubista Associates Inc
(845) 338-8062
242 Broadway
Port Ewen, NY
Empire State Advantage Inc
(518) 482-1747
16 Computer Dr W
Albany, NY
Aegis Communications
(914) 234-4300
255 Millertown Rd
Bedford, NY
North Star Enterprises
(212) 432-1225
595 Stewart Ave
Garden City, NY
Accounting Transitio Advisors
(631) 493-0022
2 Galleine
Commack, NY
Lyons Benenson & Co Inc
(212) 838-4422
14 E 60th St
New York, NY
Daniels James P CPA
(518) 449-3166
66 State St
Albany, NY
Buckhead Management
(845) 227-3808
1886 Route 52
Hopewell Junction, NY
Genxtech Corporation
(518) 452-0373
24 Madison Avenue Ext
Albany, NY
Danaher Management Corp
(518) 869-7610
1721 Central Ave
Albany, 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...

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