Guadalupe Valley Services Roofing And Home Repair 3 GuadalupeValleyServices.com [xjT4Uq 8fdo]

00:00 Mike Hanson here with Guadalupe Valley Services back again with Simon, roof expert. We're going to show you some common errors on the way people put roofs on and this time it's about vents okay go ahead Simon take it away well these are plumbing pipe jack flashings right here that you see these pipes coming out of the roof and these are just old it's not so much in error but they're so old that you can see a gap between there the water can run down Okay, now contrary to what many people believe the primary purpose of these vents is not to let air out it does that But it's let extra air in To chase the fluids if they're covered up tight you'll think you have a clogged drain You'll drink drains will drain very very slowly It lets extra area just like if you're drinking an iced tea or coke through a straw. You can put your thumb over the straw and pull up the fluid

00:51 then drop it, that extra air coming in. So these things should not be sealed tight but this part needs to be tight here and this one's really bad shape these are old-style plastic vents that are completely deteriorated you can actually see a hole you can look right into the attic there on these so that is definitely leaking in any kind of decent rain water hitting outside the pipe is running in that's not so much an installation error that's just an old