Oakridge® and Trudefinition® Oakridge® Shingles

CAUTION: DO NOT MIX MATERIAL BEARING DIFFERENT LOT NUMBERS, REFER TO THE LOT NUMBERS LOCATED ON THE SIDE OF THE BUNDLE.

Application Instructions

Before installing this product, check local building codes for roofing requirements.

These shingles are designed for new or reroofing work over any properly built and supported wood roof deck having adequate nail holding capacity and a smooth surface. Must comply with local building codes.

Precautionary Note:

The manufacturer will not be responsible for problems resulting from any deviation from the application instructions and the following precautions:

• Roof Top Loading: Lay shingle bundles flat. Do not bend over the ridge.
• Roof Deck: Minimum 6 inch roof deck boards, minimum 3/8 inch plywood, minimum 7/16 inch OSB, sheathing spaced minimum 1/8 inch and maximum 1/4 inch. Regardless of deck type used, the roofing installer must:

1. Install the deck material in strict compliance with the deck manufacturer’s instructions.
2. Prevent the wood deck from getting wet before, during and after installation.

• Ventilation: Must comply with local building codes.
• Handling: Use extra care in handling shingles when the temperature is below 40°F.
• Storage: Store in a covered, ventilated area at a maximum temperature of 110°F. Bundles should be stacked flat. Do not store near steam pipes, radiators, etc.
• Fastener Requirement: Use galvanized steel, stainless steel or aluminum nails minimum 12 gauge shank with 3/8 inch diameter head. Owens Corning Roofing recommends that fasteners comply with ASTM F1667. Must comply with local building codes. All fasteners must penetrate at least 3/4 inch into the wood deck or completely through the deck by a minimum of 1/4 inch.

Notice: Owens Corning Roofing requires the use of nails as the method of attaching shingles to wood decking.

Use an Owens Corning® Self-Adhered Ice & Water Barrier on the eaves in all regions of the country where roofs have had a history of ice and water backup. Apply starting at the eaves edge and extend upslope a minimum of 24 inches from the interior wall line. See Fig. 1.

Standard Slopes 4:12 and Greater: Use an Owens Corning® Synthetic Underlayment or equivalent underlayment meeting ASTM D226, D4869 or D6757. Follow underlayment manufacturer’s application instructions and local building codes. See Fig. 2.

Low Slope 2:12 to Less than 4:12: Use an Owens Corning® Synthetic Underlayment or equivalent underlayment meeting ASTM D226, D4869 or D6757. Underlayment must be installed per the manufacturer’s application instructions and local building codes. Each underlayment course must be overlapped a minimum of 1/2 the width of the underlayment plus 1 inch. See Fig. 3.

Or Owens Corning® Self-Adhered Ice & Water Barrier or equivalent with a standard overlap of 3 inches and metal drip edge. See Fig. 3A.

Note: See technical bulletin for felt application.

Standard Fastening Pattern

Use 4 fasteners. See Fig. 4.

Six Nail Fastening Pattern

Use 6 fasteners. See Fig. 4A. 

Mansard or Steep Slope Fastening Pattern

Place fasteners 6 1/8 inches from bottom edge to secure both layers of the shingle. Fasteners need to be located 6 1/8 inch above the butt edge of the shingle, regardless of whether they are in the granules or nail line. See Fig. 4B.

REQUIRED: For slopes exceeding 60 degrees or 21 inches per foot, use 6 fasteners and 4 spots of asphalt roof cement per shingle. Apply immediately, one 1 inch diameter spot of asphalt roof cement under each shingle tab. Center asphalt roof cement 2 inches up from bottom edge of shingle tab. See Fig. 4B.

Asphalt Roof Cement where required must meet ASTM D4586 Type I or II (Asbestos Free).

Note: Please be aware that excessive amounts of asphalt roof cement could blister the shingle. Six nail fastening pattern is required for maximum wind warranty. In addition, Owens Corning® Starter Shingles are required along the eaves and rake. See Starter Shingle instructions for details.

Starter Course

Use an Owens Corning® Starter product. Trim 6 1/2 inches off the rake of the starter course shingle and overhang the drip edge along the rake and eaves edge, 1/4 to 3/4 inch, and continue across the roof. Use 5 fasteners for each shingle, placed 2 to 3 inches up from eaves edge. See Fig. 5. If no drip edge is used, shingles must extend a minimum of 1/2 inch and no more than 1 inch from rake and eaves edge.

First Course

Apply first course starting with the full shingle even with the starter course. See Fig. 5A. Fasten securely according to fastening instructions. See Fig. 4.

Second Course

Remove 6 1/2 inches from the left end of this shingle and apply the remaining piece over and above the first course shingle and flush with edge of the first course with 5 5/8 inch exposure. See Fig. 5B. Fasten securely according to fastening instructions. See Fig. 4.

Third Course

Remove 13 inches from the left end of this shingle and apply the remaining piece over and above the second course shingle flush with edge of the second course with 5 5/8 inch exposure. See Fig. 5C. Fasten securely according to fastening instructions. See Fig. 4.

Fourth Course

Remove 19 1/2 inches from the left end of this shingle and apply the remaining piece over and above the third course shingle and flush with edge of the third course with 5 5/8 inch exposure. See Fig. 5D. Fasten securely according to fastening instructions. See Fig. 4.

Fifth Course

Remove 26 inches from the left end of this shingle and apply the remaining piece over and above the fourth course shingle and flush with edge of the fourth course with 5 5/8 inch exposure. See Fig. 5E. Fasten securely according to fastening instructions. See Fig. 4.

Sixth Course

Remove 32 1/2 inches from the left end of this shingle and apply the remaining piece over and above the fifth course shingle and flush with edge of the fifth course with 5 5/8 inch exposure. See Fig. 5F. Fasten securely according to fastening instructions. See Fig. 4.

Succeeding Courses

For succeeding courses, repeat first through sixth course. See Fig. 5G.

Closed-Cut Valley: A closed-cut valley can be used as an alternative to woven and open valley and is applied as follows:

• Lay a 36 inch wide valley liner of self-adhered membrane underlayment or equivalent. A 36 inch wide minimum 50 lb. smooth surface roll roofing can also be used as a valley liner.
• Lay all shingles on one side of valley and across center-line of valley a minimum of 12 inches.
• Fasten a minimum of 6 inches away from center-line on each side of valley.
• Strike a chalk line 2 inches from the center-line of the unshingled side.
• Apply shingles on the unshingled side up to the chalk line and trim, taking care not to cut the underlying shingles.
• Clip upper corner of these shingles and install a 3 to 4 inch wide, continuous bead of roofing cement.
• Press shingles firmly into cement. Both woven and metal valleys are acceptable alternatives. See Fig. 6.

For California-Cut Valley, see technical bulletin at www.owenscorning.com.

Use 10 inches long and 2 inches wider than expected exposure corrosion-resistant metal where roof planes butt against vertical sidewalls or chimneys. Check local building codes. For additional flashing details, go to www.owenscorning.com. See Fig. 7

Use corresponding Owens Corning® Hip & Ridge Shingles to best complement shingle color. Follow specific application instructions as printed on the Hip & Ridge Shingle package. See Fig. 8.