Flashing at Sills Plattsburgh NY

Sill flashing in Plattsburgh 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

C A I Corporate Affairs International
(518) 561-2232
43 Durkee St
Plattsburgh, NY
N Ycce
(518) 561-2232
43 Durkee St
Plattsburgh, NY
Middleton Co
(212) 944-1069
570 Fashion Ave
New York, NY
Maranatha Human Svces
(845) 486-1349
29 N Hamilton St
Poughkeepsie, NY
Breakthrough Management Inc
(212) 924-2324
159 W 25th St
New York, NY
Cai Corporate Affairs International
(518) 562-2240
43 Durkee St
Plattsburgh, NY
Martindale Keysor & Company
(518) 563-7717
24 Margaret St Ste 4
Plattsburgh, NY
New York Center of Commerce For Export
(518) 561-2232
43 Durkee St
Plattsburgh, NY
Alfco Capital Management
(516) 487-2112
34 Gateway Dr
Great Neck, NY
United Small Business
(631) 240-4461
738 Smithtown Byp
Smithtown, 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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