Flashing at Sills Glens Falls NY

Sill flashing in Glens Falls 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

Flomatic Corp
(518) 761-9797
15 Pruyns Island Dr
Glens Falls, NY
Newport Consulting Group
(914) 332-9246
163 Highland Ave
Sleepy Hollow, NY
North East Mgmt Consulting Association
(516) 876-2311
355 Post Ave
Westbury, NY
Prosper Advisors Llc
(914) 730-9050
200 Business Park Dr Ste 201
Armonk, NY
179 Ashburton Inc
(914) 740-4626
28 Coventry Ln
New Rochelle, NY
Lapper Jean A CPA
(518) 793-9628
5 Warren St
Glens Falls, NY
Prohome
(518) 798-9236
12 Pine St
Glens Falls, NY
Aba Inc
(585) 249-4810
1150 Pittsford Victor Rd
Victor, NY
Brj Consulting Inc
(718) 261-0700
7050 Austin St
Forest Hills, NY
Wirthlin Group Inc
(212) 370-9096
708 3rd Ave
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...

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