Yes tar can be applied to a roof in temperatures as low as 40 degrees fahrenheit.
Roofing tar temperature.
If the roofing job needs to be done immediately due to leaks or wind damage lay a tarp over the damaged section of the roof or install temporary roofing.
Tar can flash into sudden flame if it s too hot it s basically chunky oil which does burn.
Roofing tar s unique liquid solid properties make it ideal for flat and low slope roofs where it can be self healing and fix leaks.
You should also not apply tar when it is overly hot as the high temperature can cause it to drip.
You don t want your tar to reach that number though you want it to remain at around 450 475 degrees.
The warm temperature can cause the tar to drip and make an incredible sticky mess.
Ideal temperature to get the best results and to prevent breakage or softening of materials install roofing when the temperature is between 50 and 60 degrees f if at all possible.
At hotter temperatures your roofing tar may start dripping creating an unsightly difficult mess.
The ideal temperature is 70 degrees f.
Roofing tar is sensitive to temperature.
Additionally never apply tar when it is extremely hot say in the middle of summer.
When to tar a roof.
You ll need one that can go over 500 degrees fahrenheit.
Temperatures lower than 70f means the substance will take a long time to set.
However in extremely high temperatures roofing tar will turn into a liquid.
When applying roofing tar make sure that you have at least a few consecutive days of sunshine without rain or snow so that the tar has time to cure.