1 gallon at 5 mils thick will cover 320 sq.
How much area will a gallon of roof coating cover.
1 gallon at 1 mil thick will cover 1600 sq.
For all three products allow one gallon of roof coating for every 80 square feet of corrugated metal roof or 100 square feet of smooth metal roofing.
What about non rectangular areas.
For example to cover 2000 sq.
See our how to measure your roof guide.
Add the 2 areas 100 200 300 sq ft to get a total.
For two coats double that figure.
1 gallon at 10 mils thick will cover 160 sq.
One 5 gallon pail covers 250 square feet of roof with 2 coats.
Square footage is based on multiplying the length of an area x width of that area.
One gallon will cover 50 square feet of foam or modified bitumen roofing concrete or bonded tar and gravel roofing.
For instance an l shaped surface can be broken into 2 smaller rectangles see illustration below.
22 dry mils applying temperature.
Add the 2 areas 100 200 300 sq ft to get a total.
In those instances you need to break the area down into smaller rectangles.
Any derivative of 1600 based on the thickness of the coating will tell you how many square feet the product yields.
What about non rectangular areas.
100 square feet per gallon per coat.
In those instances you need to break the area down into smaller rectangles.
1 gallon at 20 mils thick will cover 80 sq.
Square footage is based on multiplying the length of an area x width of that area.
2000 500 4 5 gallon pails.
Do not apply in temperatures below freezing above 120 f 49 c or if rain is expected within 2 hours.