On 2005-11-11, Dan_Musicant wrote:

They installed Elk Corporation Prestique Plus:
http://www.elkcorp.com/contractors/p...stique_phd.cfm

On Fri, 11 Nov 2005 02:45:36 GMT, "josh" wrote:

Also, you mentioned the nails are 1.25" length. It would be interesting to
know the length recommended for the 50 year laminate for which you have.

I don't know. I suppose 1.25".

From the Prestique Plus spec sheet on elkcorp.com:

FASTENERS

While nailing is the preferred method for Elk shingles, Elk will
accept fastening methods according to the following instructions.

ALWAYS NAIL OR STAPLE THROUGH THE FASTENER LINE.

NAILS: Corrosive resistant, 3/8" head, minimum 12-gauge roofing
nails. Elk recommends 1-1/4" for new roofs and 1-1/2" for roofovers.
In cases where you are applying shingles to a roof that has an exposed
overhang, for new roofs only, 3/4" ring shank nails are allowed to be
used from the eaves edge to a point up the roof that is past the
outside wall line. 1" ring shank nails allowed for re-roof.

STAPLES: Corrosive resistant, 16-gauge minimum, crown width minimum of
15/16". Note: An improperly adjusted staple gun can result in raised
staples that can cause a fish-mouthed appearance and can prevent
sealing.

Fasteners should be long enough to obtain 3/4" deck penetration or
penetration through deck, whichever is less.

Cheers, Wayne