Flashing at Sills Hamburg NY

Sill flashing in Hamburg 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

Preciosa International, Inc.
(716) 626-9759
2316 Wehrle Dr.
Williamsville, NY
Gazetten Contractors Inc
(212) 719-5100
49 W 37th St
New York, NY
Montgomery Assocs Inc
(516) 933-2100
380 N Broadway
Jericho, NY
Ionian Management Inc
(212) 969-9894
1790 Broadway Ste 1700
New York, NY
F B C Community Services Inc
(631) 727-0592
57 Bell Ave
Riverhead, NY
APF 32 LTD.
716 836-7190
278 Faraday Rd
Tonawanda, NY
Management Company of Hauppauge the
(631) 363-5500
90 Eatondale Ave
Blue Point, NY
A B G Svces Inc
(631) 580-0289
751 Coates Ave
Holbrook, NY
A B C Managmnt Inc
(914) 376-7194
1200 Warburton Ave
Yonkers, NY
Green Hornet Enterprises
(212) 868-7815
15 W 38th St
New York, 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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