Can I use screws on roof sheathing?

Asked By: Jianfen Veasey | Last Updated: 21st April, 2020
Category: home and garden indoor environmental quality
5/5 (2,832 Views . 41 Votes)
Screws can be used for even greater withdrawal strength, but should be sized by the building designer. Staples are not recommended for roof sheathing attachment in high-wind areas.

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Considering this, do you glue roof sheathing?

Apply adhesive along the connection between the roof sheathing and rafters in a continuous bead, much like caulk around a bathtub or apply adhesive to two adjacent sides of 1 by 2 blocks 6 inches long and space them with a 6-inch gap between the blocks.

Secondly, what should I use for roof sheathing? Oriented strand board (OSB) is one of the most popular materials for roof sheathing. OSB is lightweight, cheap and strong enough to resist bending or breaking should someone be walking on the roof. Roof sheathing may also be constructed of plywood. Plywood is a bit more expensive than OSB but is usually stronger.

Just so, what kind of nails do you use for roof sheathing?

Using proper nails to attach sheathing will help your roof withstand strong winds. Traditional sheathing material typically comprises 15/32-inch plywood or oriented-strand-board (OSB) panels. Builders generally use 8d common nails, which are approximately 2 ½ inches long and 131/1000 inch wide in diameter.

How far should Roof sheathing overhang fascia?

It is at 45-3/4 in. Measure up the rafter 45-3/4 inch from the cut end of the truss tail and snap a line along the trusses. This indicates the upper edge of the first row of roof sheathing—leaving enough overhang that the subfascia and fascia will tuck neatly underneath when the time comes.

34 Related Question Answers Found

Should roofing nails go through the sheathing?

A 1″ nail will fully penetrate through 3/8″ roof sheathing, but it won't fully penetrate 1/2″ sheathing. The other way to determine if the proper nails were used is to look in the attic; if the roof has 1/2″ sheathing, you should be able to see the nails sticking through in to the attic.

Are H clips required for roof sheathing?

For the most common roof sheathing in our area, which is 1/2” nominal (7/16” actual) sheathing over trusses or rafters at 24” on center, there is no requirement for H-clips. One or two H-clips will often allow a longer span between roof trusses/rafters.

What is the minimum thickness of roof sheathing?

Sheathing should be a minimum of 19/32-inch thick. Never attach roof sheathing with staples; 8d ring-shank nails should be used instead. The typical thickness range for sheathing is 3/8 to 3/4 inch. Sheathing is installed perpendicular to roof trusses.

What size screws 3/4 plywood?

Selecting the Correct Screw and Using it Properly
Screw Selection Chart
Plywood Thickness Screw Length
3/4" #8 1-1/2"
5/8" #8 1-1/4"
1/2" #6 1-1/4"

Can you use screws on OSB?


Screws - and DO NOT use drywall screws. Use coarse thread coated deck screws 1 5/8". OSB will pop the head off a drywall screw, even with a drywall screw bit on the drill. And the fine thread on a drywall screw will not hold in a joist - it will spin and strip the threads when the head hits the OSB.

How thick should roofing plywood be?

Most Common Thickness
For rafters spaced 20 or more inches apart, 1/2- or 5/8-inch plywood is recommended. The most common rafter spacing is 24 inches, and 5/8-inch plywood is recommended for that. It will support roof loads for most situations and is the standard for most roof applications.

Is 7/16 OSB OK for roofing?

Wall panels 7/16 Category may be used on studs spaced up to 24” o.c. LP OSB sheathing panels are designed for use in roof, wall and subfloor systems in commercial and residential projects, maintenance, remodeling or new construction. OSB sheathing panels comply with the following industry standards and certifications.

What is the difference between sheeting and sheathing?

Roof Sheathing ("Sheeting") Roof sheathing is any material that is used to provide a solid surface, decking or base to which roofing material is applied to. The roof sheathing is much more than simply just a surface to attaching roofing materials to.

How much does it cost to replace roof sheathing?

Cost to Install Plywood Sheathing or Replace Roof Decking
The average cost to replace roof decking in a 2,400 square foot home is between $1,050 and $1,575.

What is better for roofing OSB or plywood?


When plywood gets wet, it tends to swell. In this case, plywood has the edge. OSB takes longer than plywood to get saturated, but also takes much longer to dry out. When used as roof sheathing, this tendency to hold moisture means it will degrade faster than plywood when exposed to chronic leaks.

Is OSB better than plywood for roofing?

OSB takes longer to get wet than plywood but also takes longer to dry out. When used as a roof sheathing, this tendency to hold moisture means it can degrade faster than plywood when exposed to chronic leaks. Swollen edges have been known to telegraph visible ridges called “ghost lines” through asphalt roof shingles.

Do you stagger wall sheathing?

Long edge of panels installed horizontally across supports and each succeeding course NOT staggered. Most installations are Category 1, but the critical criteria in all categories is that the panels MUST fully meet (lap) the sill plate, both top plates and 1/2 of stud at ends.

Can I use a framing nailer for sheathing?

The answer is, yes. Framing nail guns can be used for siding installation, if the nail being used is long enough to attach the siding firmly to your exterior wood sheathing. You may also find that siding nailers are a few pounds lighter than framing guns.

How long should 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.

How do you nail plywood?


Use a 3-16 inch-head ring shank nail to hold plywood underlayment for a subfloor in place. The nail tip must not exceed the width of the floor joist it is being driven into. House floor joists are generally about 8 to 10 inches wide, so nail length is not an issue.

How many nails are in a sheet of plywood?

You should use 3-inch ring shank nails to allow at least 1 1/2 inches of truss penetration when working with lumber slats. You can use 2-inch galvanized nails when working with plywood or oriented strand board (OSB) sheets, which measure 4 feet by 8 feet.

How many plywood clips do I need?

For 16-inch centered framing, place the clip at the approximate middle-point between each perpendicular framing member. For 24-inch centered framing, position two clips equally spaced between rafters or joists approximately 8 inches apart.