Duro-Last Concrete Nails User Manual
DURO-LAST® CONCRETE NAIL
Description:
Duro-Last®, Inc. specifies the use of concrete nails
for the mecha nical fastening of the Duro-Last roofing
system on structural concrete decks. Duro-Last
Concrete Nails are Duro- Coated for p rotection against
the harsh roofing environment.
The concrete nails surpass the FM 4470 specification
and may be used to fasten both insulation and the
Duro-Last membrane to the deck.
Installation:
1. Duro-Last Concrete Nails are designed to be
installed into a pilot hole made by a 3/16-inch
(5 mm) masonry drill bit.
2. The depth of the pilot hole s hould be a minimum of
1.5 inch (38 mm).
3. Penetration into the concrete deck is 1 inch (25.4
mm), minimum, from the top surface of the deck.
4. A Duro-Last Plate is required for each fastener
used for membrane attachment.
Note:
• Duro-Last, Inc. stocks concrete nails in the sizes
noted in the table to the right. Additional sizes
are available on a drop ship basis. Please allow
adequate time for ordering and delivery of special
orders.
DATA SHEET
CONCRETE NAIL DIMENSIONS
Length
1.5 inch (38 mm)
2 inch (5 1 mm)
2.5 inch (64 mm)
3 inch (7 6 mm)
3.5 inch (89 mm)
4 inch (102 mm)
4.5 inch (114 m m)
5 inch (127 mm)
5.5 inch (140 m m)
6 inch (152 mm)
7 inch (178 mm)
8 inch (203 mm)
9 inch (229 mm)
10 inch (254 mm)
11 inch (279 mm)
12 inch (305 mm)
Quantity per
Bucket
500
500
500
500
500
500
500
500
500
500
500
500
500
250
250
250
Duro-Last: The Proven Performer®
www.duro-last.com
"Duro-Last " an d " The World's Best Roof" are registered marks owned by Duro-Las t , Inc.
21
800-248-0280
2009
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