Supreme® Metric 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:
• Install the deck material in strict compliance with the deck manufacturer’s instructions.
• 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.

Place fasteners 6 1/8 inch up from bottom edge of each shingle and 1 inch from each end.

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:

REQUIRED: For slopes exceeding 60 degrees or 21 inches per foot, use 6 fasteners and 6 spots of asphalt roof cement per shingle. Apply immediately, one 1 inch diameter spot of asphalt roof cement under each corner 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.

Note: Please be aware that excessive amounts of asphalt roof cement could blister the shingle.

Starter Course: Use an Owens Corning® Starter product. Trim 6 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. 6.

Apply shingles over properly prepared roof deck, starting at bottom of roof and working across and up. This will blend shingles from one bundle into the next and minimizes any normal shade variation. Shingles are applied with a 6 9/16 inch offset. While a 6 9/16 inch offset is recommended, application with offsets of 4 9/16 inches or 5 9/16 inches are also acceptable. Caution must be exercised to assure that end joints are no closer than 2 inches from a fastener in the shingle below and that side laps are no less than 4 inches in succeeding courses. Refer to course applications steps for specific instructions. If racking application methods are used, the applicator must ensure that the proper number of fasteners are used, and use shingles from several different bundles to reduce potential for color variation. See Fig. 5.

First Course: Apply first course starting with the full shingle even with the starter course. See Fig. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Second Course: Remove 6 9/16 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. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Third Course: Remove 13 1/8 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. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Fourth Course: Remove 19 3/16 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. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Fifth Course: Remove 26 1/4 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. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Sixth Course: Remove 32 5/16 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. 6A. Fasten securely according to fastening instructions. See Fig. 4.

Seventh Course: Apply seventh course with full shingle. Leave 5 5/8 inch exposure and fasten securely. Note: Complete course with full shingles. Succeeding Courses: For succeeding courses, repeat second through seventh course. See Fig. 6A.

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 corners 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. 7.

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

Use 10 inches wide and 2 inches longer 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. 8.

Cut full shingles into three 13 1/4 inch x 13 1/8 inch Hip & Ridge Shingles. Start hips at the eaves and work up to ridge. Apply ridge only after hips have been applied, beginning on end of ridge opposite prevailing wind direction. Leave 5 5/8 inches exposure per shingle for Hip & Ridge application. Bend over the ridge; fasten on each side 6 1/4 inches from exposed end, 1 inch up from the edge. Cover exposed nails with asphalt cement. See Fig. 9.