Flashing at Sills Mahopac NY

Sill flashing in Mahopac 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

Hope and Options
(845) 628-9673
410 Route 6
Mahopac, NY
Solutions by Design
(718) 692-3866
2801 Avenue P
Brooklyn, NY
South Hill Business Campus Llc
(607) 256-2025
950 Danby Rd
Ithaca, NY
L I Developmental Consulting
(631) 285-6400
2233 Nesconset Hwy
Lake Grove, NY
Behr Asset Management
(914) 925-3404
411 Theodore Fremd Ave
Rye, NY
Lighting New York
845-786-LITE (5483)
4 Carol Street
West Haverstraw, NY
Combro Inc
(845) 628-3486
52 Sprucetop Dr
Mahopac, NY
Advantage International Mgt
(212) 618-6399
1230 Avenue of the Americ Fl 7
New York, NY
Fias Consultants
(631) 691-2865
77 Broadway
Amityville, NY
Alna Medical Center
(718) 645-7702
1664 E 14th St
Brooklyn, 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

Related Articles
- Inner Corner at Base of Wall Mahopac NY
The concrete masonry can be connected to the corner column with a debonded shear anchor. This type of anchor resists out-of-plane (but not in-plane) shear forces and permits movement between the steel column and concrete masonry.
- Flashing Factors Mahopac NY
- Eco-Friendly Products Mahopac NY
- Flashing and Sill Products Mahopac NY
- High-Efficiency Products Mahopac NY
- Home Exterior Products Mahopac NY
- Flashing in Siding Installations Mahopac NY
- Home Siding Tips Mahopac NY