Flashing at Sills Troy NY

Sill flashing in Troy 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

Information Technology Mgt
(518) 273-2909
33 2nd St
Troy, NY
Highpointe Business Solutions
(518) 235-0679
20 Viewpoint Dr
Troy, NY
Hornby Zeller Associates
(518) 273-1614
48 4th St Ste 300
Troy, NY
Resource Advantage Inc
(518) 272-9364
200 Broadway
Troy, NY
St Management Commissary
(212) 290-8189
350 W 38th St
New York, NY
Corliss Park Tenants Assoc
(518) 235-6568
Northern Dr
Troy, NY
Experient Inc
(518) 266-9104
258 Broadway
Troy, NY
American Housing Management Company Inc
(518) 279-3810
317 Brick Church Rd
Troy, NY
Kaleel Jamison Consulting
(518) 271-7000
279 River St Ste 401
Troy, NY
Bruneau Saxton Mgmt
(518) 273-0685

Troy, 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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