Do blistered shingles need to be replaced?
Hi everybody this is Tracy Bookman owner of Homestead Roofing. Welcome to our walk
in the park video series where we take just a few minutes to answer questions
about roof related issues. Today's question actually comes from one
of our YouTube viewers Lauri who asked: do blister singles need
to be replaced? Well like the answer to so many of our
other questions the answer to this one is
it depends. If the blistering problem is systemic over the whole roof so every
slope of the roof has blisters on the shingles
more than likely that's a sign of the shin - of a shingle
failure and it's probably due to the fact that the roof isn't ventilated
correctly and you know it's not going to
pose a real big problem for you in the immediate but you're going to want to
monitor it make sure that it's not getting
severe because if it starts getting severe it's going to start exposing
that asphalt underneath all the granules once that stuff starts to erode because
of weathering then you could start developing
holes or pockets in your shingles and you want to avoid that,
it's really no different than if your roof was all beat up with hail damage.
More typically what we see on blistering is
certain slopes have blisters and the other slopes are fine
and again that's a sign most commonly of the roof not being sufficiently
ventilated or maybe there's no ventilation at all because what's
happening is those sides that get the most intense exposure to the sun
there's too much heat and it's causing the asphalt in the shingle to bubble up
and then you know either that bubble breaks and
all the granules dislodge or that bubble then when it cools goes back
down and still the granules wash off. But if only certain slopes on
your roof have blistering then that situation you're still going
to have to monitor that and if it gets severe you're probably
going to have to replace those slopes that have the blistering problem.
But if your house is for sale or you're
planning to put your house up for sale and you have blistering systemic
blistering over the whole roof or maybe you know half your roof
is blistered because that's the exposure side more than likely
to sell that house you're going to have to
do something about those slopes that are blistered
you probably are going to have to replace those slopes, and the reason that
you're probably going to have to replace those slopes is because
those blister shingles are going to show up in probably every
buyer's inspection report and a lot of times the home inspector is going to get
up there and he's going to think that it's hail damage because
home inspectors...and blistering can look like hail damage and so a lot of times
that's what we'll see home inspectors show that as hail damage
in fact we're going to do a whole video just about home inspectors we'll link to
that that would be right up here.
But if your shingles let's say you just spot issues you know shingle here and
there has blistering that's really not going to be any big
deal and you probably don't even need to worry about
trying to replace just those shingles. But after Lauri's initial question
on our YouTube video she actually followed that up
with some secondary information saying that her house
is new construction and they haven't even moved in yet
and there's already blistering on those shingles
well and it's and the blistering is all on
one side so on all the slopes that have the most sun exposure.
That's definitely a sign of shingle failure
and she said that there's well she said that there's no ventilation
in the house at all which I don't even understand how a new construction can
get away with that because that's not even gonna pass code
but in a situation like that if it's if it's a new shingle and
there's already blistering that's definitely a shingle failure and
that should be a manufacturer's warranty issue so you need to get the
manufacturer involved. So I hope that answers your question
about whether or not blistered shingles need to be replaced
if you've got any questions about this particular video about this particular
issue or any other questions feel free to give
our office a call right up here 719-433-6991
you can also visit our website that's right down here
homesteadroofingcolorado.com we've got a ton of
other information out there lots of educational videos for you.
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and until our next walk in the park video I'm Tracy Bookman
owner of Homestead Roofing.