What size roofing nails do you use for shingles?

Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. The length of each nail must be a minimum of 1¼ inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches.

What nails to use for roofing shingles?

Galvanized roofing nails tend to resist rust formation, and they are a suitable option for asphalt shingles. Owens Corning requires using either galvanized steel, stainless steel, or aluminum nails to affix shingles.

Where do nails go on shingles?

Use 4 nails per shingle placed 6-1/8″ above the butt edge, 1″ and 13″ in from each end and 1/2″ above each cutout. Drive nails straight so that nail head is flush with, but not cutting into shingle surface.

Should nails be exposed on shingles?

3. Exposed Nails or Improper Nail Placement. Shingles should always be aligned so that the top layer lays directly over the nails in the bottom layer. Exposed nails look unappealing and can lead to serious issues like rust.

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Can roofing nails be too long?

Yes, they can. If they are too long, they will protrude through the sheathing at the roof overhang and be visible. We call these “shiners.”

Which is better roofing nails or staples?

Staple guns are smaller and better balanced. Coil nail guns are literally fed with a coil of nails, and the holder for the nails makes the gun much bulkier. Staples are far less prone to jamming up in a gun than nails. Staples cost less money.

Can you put shingles on without nails?

A sturdy and stable way to install roll roofing with no nails is by using torch-down roofing. For this type of roofing, you’ll be utilizing a propane torch to apply heat to the layers of roll roofing to fix them firmly into place.

How many nails do you need for shingles?

Generally, you should use four nails per shingle. For regular three-tab shingles, this would require 320 nails per square. For high wind areas or when shingles are being applied to a mansard, six nails per shingle are required (480 nails per square).

How long should my roofing nails be?

Proper Nail Application For Asphalt Shingles

Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. The length of each nail must be a minimum of 1¼ inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches.

Should roofing nails be exposed in attic?

Yes, and there are two types of nails that are normal to see in an attic: 1) The ring-shank nails used to secure asphalt shingles to the plywood or OSB roof sheathing typically penetrate into the attic 1/4” or more.

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Does flashing go under shingles?

All shingle manufacturers require step flashing at sidewalls for both asphalt, wood and slate. … Instead of installing the step flashing between shingles, the flashing rests on top of the shingles. It’s not unusual to see sealant installed when sidewall flashing is missing.

Should shingles overhang drip edge?

Asphalt shingles should overhang the exterior edge of the drip edge by ¼ to ¾-inch. Check local building code for drip edge requirements prior to the start of your roofing project.

What causes nails to pop through shingles?

Nail pops can be caused by a variety of reasons. When the temperature changes, expansion and contraction can cause the nails to pop up and lift the shingles. … Because a nail pop brings the shingle up with it, water penetration under the single can occur, or strong winds can blow the shingle off the work.

What is the shortest roofing nail?

Short Nails in Shingles

  • The minimum fastener length for an asphalt shingle roof in Minnesota is 1-1/4″. …
  • When 1″ nails are used to fasten asphalt shingles to 1/2″ roof sheathing, only the very tip of the nail will penetrate the roof sheathing.

17.07.2012

Roofs and roofing