Wall Caps for Construction Edmonton AB

What keeps wall caps from falling off the top of an exterior freestanding wall if a full flashing is used beneath the coping? Copings are typically attached to the top of masonry walls with dowels that extend through the flashing and engage the coping stones in Edmonton.

Holland Roth Architects
(780) 424-2171
10914 105 Avenue Nw
Edmonton, AB
 
Kasian Architecture Interior Design and Planning Ltd
(780) 990-0800
251-10150 Jasper Avenue Nw
Edmonton, AB
 
R Saunder Architects Ltd
(780) 488-0405
12125 Jasper Avenue Nw
Edmonton, AB
 
Castle Built Homes
(780) 710-3008
16305 2A Street Ne
Edmonton, AB
 
G C Can Limited
(780) 419-3463
210-12 St Joseph Street
St Albert, AB
 
GMH
(780) 423-3424
9834 105 Street Nw
Edmonton, AB
 
Richard Fairbank Architect Ltd
(780) 988-6471
10020 82 Avenue Nw
Edmonton, AB
 
Brinsmead Kennedy Architecture
(780) 488-9700
10434 122 Street Nw
Edmonton, AB
 
S Siren Architect Ltd
(780) 459-2950
100-17 Boudreau Road
St Albert, AB
 
Millennium Building Systems
(780) 460-9665
Box 206 3-11 Bellerose Dr
St Albert, AB
 

Wall Caps for Construction

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Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: April 1, 2005

What keeps wall caps from falling off the top of an exterior freestanding wall if a full flashing is used beneath the coping? Copings are typically attached to the top of masonry walls with dowels that extend through the flashing and engage the coping stones. Oversized holes are placed in the bottom of the coping stones to line up with these dowels. Mortar is then installed to fill the space between the holes and the dowel to prevent the stone from moving.

To prevent water penetration, the flashing must be sealed watertight around the dowels. In copper, stainless steel, and galvanized flashing, a cap is sometimes provided at the dowels, which is soldered to the sheet metal. Other times, the flashing and dowels are protected with a sealant. The sealant must be carefully installed and the surface must be properly primed.

The dowels used to attach the coping sometimes consist of eye bolts placed in the joints between coping stones. In this method of attachment, rods extend through the eye bolt into holes in the side of the coping stones. The flashing penetration must be sealed watertight.

For rowlock brick copings, corrugated galvanized steel anchors extend through the flashing. These anchors are built into the head joints of the rowlock brick course at regular intervals. As with the dowels, these anchors must be thoroughly sealed where they penetrate the flashing.

Click here to read full article from Masonry Construction