Click below for info
on measurements
• Seam Strength
• Brittle Point
• Thickness
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SEAM STRENGTH
High Seam Strength comes from the melt window of the membrane. A wider temperature range assures a solid weld with the greater flexibility in varying field conditions. A high seam strength means less number of cold welds and increase productivity. Even after the roof ages it also ensures that it can be serviced just as a new one would.
BRITTLE POINT
The brittleness point is a measurement to determine the flexibility and is an indicator of the polymer deterioration in the membrane. The ultimate test of TPO flexibility is achieved at extremely cold temperatures. Passing the test means that the roof is aging appropriately within the life span and still meeting the initial requirements of a new membrane.
THICKNESS
The thickness of a sheet directly affects its ability to withstand long-term weathering, abrasion, UV exposure and weldability. Over time the consistent thickness measurement means a sheet is standing up to weather and staying water tight. Losing a mil or two doesn’t seem like much until you add them up. Are you still being covered by 60 mills 7 years later?
60 Mil TPO - White
Fall '16
Cut
Sep. '09
Installed
Moderate
Yearly UV
Index Avg.
42°F
Avg. Jan. Low
78°F
Avg. July High
19
Rainfall (in.)
CLIMATE
UNION CITY CALIFORNIA
60 Mil TPO - White
Fall '16
Cut
Sep. '09
Installed
Moderate
Yearly UV
Index Avg.
42°F
Avg. Jan. Low
78°F
Avg. July High
17.6
Rainfall (in.)
CLIMATE
FREMONT CALIFORNIA
60 Mil TPO - White
Fall '16
Cut
July '10
Installed
High
Yearly UV
Index Avg.
37°F
Avg. Jan. Low
96°F
Avg. July High
39.1
Rainfall (in.)
CLIMATE
FARMERS BRANCH TEXAS
60 Mil TPO - White
Fall '16
Cut
Apr. '10
Installed
High
Yearly UV
Index Avg.
44°F
Avg. Jan. Low
93°F
Avg. July High
52
Rainfall (in.)
CLIMATE
HOUSTON TEXAS
60 Mil TPO - White
Yearly UV
Index Avg.
Avg. Jan. Low
Cut
Fall '18
Aug. '08
Installed
Avg. July High
High
11°F
90°F
18
Rainfall (in.)
CLIMATE
LONGMONT COLORADO
60 Mil TPO - White
Yearly UV
Index Avg.
Avg. Jan. Low
Cut
Fall '16
Dec. '09
Installed
Avg. July High
High
20°F
85°F
39.6
Rainfall (in.)
CLIMATE
GROVE CITY OHIO
LEARN MORE
With over 10 years in the TPO space, JM has observed how the industry standard requirements continue to evolve as the competitive landscape intensifies. But TPO roof performance and customer expectations have not changed. The roof needs to perform and withstand real-life conditions, harsh weather and REAL life temperatures.
Recently, JM extended the roof-cut program to continue to evaluate JM TPO performance in different weather conditions, including relative humidity, UV index, and average ambient temperatures. Click the checkpoints on the map to learn more.
