Some are plumbing vents others serve as vents for appliances.
Painting roof furnace vent.
Pvc and abs vents through roof exposed to sunlight should be protected by water base synthetic latex paints.
The easiest way is to do this is to use a good quality spray paint.
2 coats coming from one direction and then 2 coming from the other direction to get under all the slanted bits.
There s no need to do the sides since they ll be hiding inside the hole.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
This is also often recommended for water heater or furnace vents if pvc material.
Watch this video to l.
Your choice of colors unless the city or hoa has restrictions on what colors to use.
Gas furnaces usually come with their own specifications.
These pipes can be easily painted to blend in with your roof color.
The paint helps protect the pipes from the suns uv rays.
The vent pipe must overlap at each joint to prevent gas from leaking.
But they stick out like a sore thumb don t they.
I did 4 light coats with about 5 minutes of drying time in between.
Adhere to them even if you are building the vent on your own.
Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.
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