|
CALCULATING MATERIAL
REQUIREMENTS
FOR STANDING SEAM ROOFS USING
EPDM
LIQUID RUBBER®
|
|
 |
|
|
|
1) Calculate Expanded Roof Surface |
|
a) Total L × W areas |
|
b) Establish expanded surface factor using a string or
flexible tape measure. |
|
Expanded area = L × W × Factor |
|
2) Determine Spread Rate based on Dry Film thickness
desired. |
|
|
Sq.Ft. |
= |
1600 |
× |
.635 |
|
|
Gal |
|
dry film in mils |
|
volume solids of product |
|
|
|
|
|
|
Example |
|
|
|
How many gallons of Liquid Rubber are needed to coat a
10,000ft2 standing seam metal roof with a 20-mil average
film thickness? |
|
|
|
Expanded Surface Roughness Factor = 1.2; surface factor = .9 |
|
|
|
Expanded Area = 10,000 × 1.2 = 12,000ft2 |
|
|
Gallons needed = 12,000ft2 × 1600 × .635 × .9 = 548.6
gallons
20
45.7 |
|
Click here to
Order EPDM Liquid Rubber. |
|
|
