Roof Flashing
Roof Flashing provides weather protection for Roof penetration. Roof Flashing made in two halves and caulked. For roofs that are not flat there is a maximum slope of 20°.
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Roof Flashing provides weather protection for roof penetration. Used for flat roofs or on roofs that have up to a maximum slope of 20 degrees.
Roof Flashing is manufactured as follows:
- Inner diameter sizes of 3 to 24 inches with a standard 20 gauge galvanize or an optional 20 gauge 304SS Stainless Steel
- Outside diameter is 8 inches more than the inside diameter
- Roof Flashing is made in two halves with a 2 inch overlap, caulked and riveted
- Manufactured in either 20 gauge Galvanize or 304SS Stainless Steel.
| Size
in. |
Wgt.
lbs |
|---|---|
| 3 | 0.45 |
| 4 | 0.62 |
| 5 | 0.84 |
| 6 | 1.12 |
| 7 | 1.35 |
| 8 | 1.63 |
| 9 | 1.94 |
| 10 | 2.26 |
| 11 | 2.47 |
| 12 | 2.97 |
| 13 | 3.30 |
| 14 | 4.41 |
| 15 | 5.10 |
| 16 | 5.60 |
| 17 | 6.10 |
| 18 | 6.74 |
| 19 | 7.25 |
| 20 | 7.68 |
| 21 | 8.13 |
| 22 | 8.94 |
| 23 | 9.20 |
| 24 | 11.25 |
Galvanized Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 20 | 0.0396 | 1.01 |
Stainless Gauge Metal Thickness
| Gauge | Inches | Millimeters |
|---|---|---|
| 20 | 0.0375 | .95 |
NOTES:
- At temperatures ranging between 390° F and 480° F, the zinc-iron alloy layers in the galvanized steel will continue to provide a high level of protection from corrosion. However, there may be some peeling, changes in mechanical properties, and reduction in the corrosion protection. Recommended maximum service temperature is 390° F.
- For 304 SS metal, bluing may occur at temperatures of 800° F and above.
- Rock River Silicone Sealant and Red Devil HVAC/R High Temperature Silicone Sealant are not able to be painted.
| Item | Material | Compliance/Rating |
|---|---|---|
| Roof Flashing | Galvanized | ASTM A653 with a G-90 Rating |
| 304 SS | Finish meets ASTM A240 | |
| 316 SS | Finish meets ASTM A240 | |
| 3M Scotch Seal Metal Sealant 2084 | Acetone blend | AAMA Specification 801.1 |
| 3M Polyurethane Sealant 560 | Polyurethane | ASTM E 162 Bombardier SP 800-C |
| Rock River Silicone Sealant | 100% Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A FDA No. 421 CFR 117.2600, conforms to FDA requirements |
| Red Devil HVAC/R High Temperature Silicone Sealant | Silicone | ASTM C920 Class 25 TT-S-00230C Class A and TT-S-001543A CEBTP 432.6 140-2 Mil Spec 46106A CGSB 19C9-9B DIN 18540 Part 2 OREX 150031-2 |