Ply Sheet Installations
4 Shingled Layers of 40" Wide Ply Sheets
Install 4 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into the following widths: 10", 20", and 30". Align the finished edge of each layer of starter sheets over the outside edge of the base sheets. Start with the narrowest starter sheet and continue by installing the next widest sheet for each layer of starter sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 32.00" over the first full width layer of ply sheets, leaving 8.00" exposed: Thereafter, lap the ply sheets 30.50", leaving 9.50" exposed.

3 Shingled Layers of 40" Wide Ply Sheets
Install 3 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into the following widths: 13.33" and 26.67". Align the finished edge of each layer of starter sheets over the outside edge of the base sheets. Start with the narrowest starter sheet and continue by installing the next widest sheet for each layer of starter sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 28.65" over the first full width layer of ply sheets, leaving 11.35" exposed: Thereafter, lap the ply sheets 27.40", leaving 12.60" exposed.

2 Shingled Layers of 40" Wide Ply Sheets
Install 2 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into 20" widths. Align the finished edge of the starter sheets over the outside edge of the base sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 22.00" over the first full width layer of ply sheets, leaving 18.00" exposed: Thereafter, lap the ply sheets 21.00", leaving 19.00" exposed.

4 Shingled Layers of 36" Wide Ply Sheets
Install 4 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into the following widths: 9", 18", and 27". Align the finished edge of each layer of starter sheets over the outside edge of the base sheets. Start with the narrowest starter sheet and continue by installing the next widest sheet for each layer of starter sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 29.00" over the first full width layer of ply sheets, leaving 7.00" exposed: Thereafter, lap the ply sheets 27.50", leaving 8.50" exposed.

3 Shingled Layers of 36" Wide Ply Sheets
Install 3 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into the following widths: 12" and 24". Align the finished edge of each layer of starter sheets over the outside edge of the base sheets. Start with the narrowest starter sheet and continue by installing the next widest sheet for each layer of starter sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 26.00" over the first full width layer of ply sheets, leaving 10.00" exposed: Thereafter, lap the ply sheets 24.75", leaving 11.25" exposed.

2 Shingled Layers of 36" Wide Ply Sheets
Install 2 shingled layers of ply sheets. Make and install the starter sheets from ply sheets cut into 18" widths. Align the finished edge of the starter sheets over the outside edge of the base sheets. Install the first layer of full width ply sheets over the starter sheets, aligning the edge of the ply sheets over the outside edge of the starter sheets. Lap the second layer of full width ply sheets 20.00" over the first full width layer of ply sheets, leaving 16.00" exposed: Thereafter, lap the ply sheets 19.00", leaving 17.00" exposed.

1 Layer of 40" Ply Sheets
Install 1 layer of ply sheets. Make and install the starter sheets from the ply sheets cut into 20" widths. Align the finished edge of the starter sheets over the outside edge of the base sheets. Continue by installing full width ply sheets. Side laps shall be a minimum of 2", leaving an exposure of 38". Keep the seams of the ply sheets offset a minimum of 6" from the seams of base sheets.

1 Layer of 36" Ply Sheets
Install 1 layer of ply sheets. Make and install the starter sheets from the ply sheets cut into 18" widths. Align the finished edge of the starter sheets over the outside edge of the base sheets. Continue by installing full width ply sheets. Side laps shall be a minimum of 2", leaving an exposure of 34". Keep the seams of the ply sheets offset a minimum of 6" from the seams of base sheets.

Reflective Surfacings
Prior to application of the reflective surfacing, repair surface irregularities such as wrinkles, dry laps, or reinforcing sheet damage.

There are three reflective surfacing options that may be specified: (1) Reflective Coatings, (2) Reflective Minerals, or (3) Reflective Cap Sheets. Apply the reflective surfacing selected per one of the following specifications:

Reflective Coatings
1. First apply an asphalt protective coating with the same asphalt, and at the same rate of coverage, as applied to install the roof system sheets: Or, if specified, apply a Fields asphalt emulsion coating at the uniform rate of 3 gallons per 100 square feet.

2. Allow the asphalt protective coating a minimum of 90 days to set up before applying the reflective coating.

3. Uniformly apply the reflective coating specified at the following rates per 100 square feet: M800 RubrStar at 3 gallons, or a Fields fibered aluminum coating at 1.5 gallons.

Refer to the "Coating Rate Chart" and the "Fields Product Guide" for additional information.

Reflective Minerals
1. RMAC SilvrStars, Aluminum Chips: Evenly spread 3.5 pounds of SilvrStars into the ambient applied asphalt specified. Apply the specified Fields asphalt at the following uniform rates per 100 square feet: Cutback asphalts 5 gallons and asphalt emulsions 3 gallons.

2. RMCG PolrWhite, White Ceramic Granules: Evenly spread 50 pounds of PolrWhite into the Fields asphalt specified. Apply the specified asphalt at the following uniform rates per 100 square feet: Cutback asphalts 5 gallons and asphalt emulsions 3 gallons.

3. RMPG PeaGravl, Washed .25" Pea Gravel: Evenly spread 400 pounds of PeaGravl into the specified Fields asphalt at the following uniform rates per 100 square feet: Ambient applied asphalt 8 gallons and hot applied asphalt 60 pounds.

Reflective Cap Sheets
Reflective cap sheets shall not be installed on slopes greater than 6" per horizontal foot so as to eliminate the possibility of sheet slippage.

Apply one of the following specified reflective cap sheets: (1) M69 Poly RubrCap, (2) F59 PolyCap, (3) M68 Glas RubrCap, or (4) F58 GlasCap.

The two primary installation factors for reflective cap sheets are temperature and technique.
1. A minimum ambient temperature of 60°F is required during reflective cap sheet installations so as to achieve a smooth, well adhered layer.

2. Prior to time of installation, unroll the reflective cap sheet rolls and cut into approximately 12' sections or thirds. Allow enough time for the precut sections to relax and flatten in the heat. Adhere the reflective cap sheet sections to the ply sheets. Keep the seams of the reflective cap sheets offset a minimum of 6" from the seams of ply sheets. The precut sections shall be rerolled just prior to application and unrolled into the asphalt as the asphalt is applied. As long as the reflective cap sheets are capable of being unrolled without cracking, application with rerolled cap sections shall be permitted.

Reflective cap sheets shall be adhered into the specified Fields asphalt. Ambient asphalt adhesives shall be applied at the uniform rate of 4 gallons per 100 square feet. Hot asphalt adhesives shall be applied at the uniform rate of 30 pounds per 100 square feet.

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