Building and Construction - Flat roof repair

Author

Flat roof repair

Gollum

2006-03-15, 6:29 pm

I would appreciate input from contractors with commercial flat roof
experience.

I have a torched down rolled roof that is about 12 years old (NYC
weather) Small but annoying leaks in 6 places.

A contractor wants to fix any obvious spots and then "seal it" with
a rolled/squeeged compound from Karnak. Cost is supposed to be 50
cents a square foot.

Is this a good idea? Or a waste of money?

Thanks
Greg

TonyfromNY

2006-03-16, 10:21 am

50 cents a square foot sounds pretty cheap, but it depends on how bad
the roof is that will determine what is needed to fix it. I personally
don't know about karnac, but if you want, our company does commercial
roofs specifically, you can call us and maybe we can give you a better
idea with some more information. We are the manufacturer of the Astec
Re-Ply Systems,call us at 800-223-8494, or take a look at some of the
commercial projects we have done at our website:
http://www.icc-astec.com/

TonyfromNY

2006-03-16, 10:21 am

Actually, I was just thinking, is that 50 cents for product only or
does that include labor? What size is the roof and how long will it
take to complete? In order to determine whether it "is a good idea or a
waste of money" more information is needed.

Gollum

2006-03-16, 3:21 pm

On 16 Mar 2006 05:40:27 -0800, "TonyfromNY"
<ahumanbeinghuman@gmail.com> wrote:

>Actually, I was just thinking, is that 50 cents for product only or
>does that include labor? What size is the roof and how long will it
>take to complete? In order to determine whether it "is a good idea or a
>waste of money" more information is needed.

Building is one story, 12,800 sf and the price is complete including
labor and materials. This is a latex coating not a new roof.
Contractor says it should last 8 years.
I would guess its a two day job.

bu11d09@gmail.com

2006-03-17, 11:21 am

The word "seal" is the key here. Latex coatings probably do not
waterproof and won't stop the leaks.
I guess some questions I would have for the contractor are: How many
mils thick is the coating? Or how many square feet to the gallon is it
applied? Or how many gallons do you plan on using on my roof?
..50 a square foot is incrediably cheap, and given the NY market for
labor, well, it costs at least .10 a square foot to clean/pressure wash
most roofs. Obviously prep is key- if the contactor isn't planning on
cleaning the roof by pressure washing it, how will ANYTHING stick to it
for two weeks let alone 8 years- this is a roof after all -nothing is
exposed to the enviroment more than a roog . Doesn't sound like you are
getting a warranty either, if you are, than the manufacurer has specs
that you can refer to make sure the job is being done according to the
manufacturer.
I imagine you have had estimates from other roofers- they were probably
all at least 4 times as much. Ask for references, or to see something
similar 4 years old or older. How long has this guy been in business?
Just do your homework.

Gollum

2006-03-27, 3:21 pm

On 17 Mar 2006 06:28:33 -0800, bu11d09@gmail.com wrote:

>
>The word "seal" is the key here. Latex coatings probably do not
>waterproof and won't stop the leaks.
> I guess some questions I would have for the contractor are: How many
>mils thick is the coating? Or how many square feet to the gallon is it
>applied? Or how many gallons do you plan on using on my roof?
>.50 a square foot is incrediably cheap, and given the NY market for
>labor, well, it costs at least .10 a square foot to clean/pressure wash
>most roofs. Obviously prep is key- if the contactor isn't planning on
>cleaning the roof by pressure washing it, how will ANYTHING stick to it
>for two weeks let alone 8 years- this is a roof after all -nothing is
>exposed to the enviroment more than a roog . Doesn't sound like you are
>getting a warranty either, if you are, than the manufacurer has specs
>that you can refer to make sure the job is being done according to the
>manufacturer.
>I imagine you have had estimates from other roofers- they were probably
>all at least 4 times as much. Ask for references, or to see something
>similar 4 years old or older. How long has this guy been in business?
>Just do your homework.

Thanks for the response. I wasn't trying to skip my homework. I was
more interested if the basic technique of coating the roof, instead of
a new roof, was viable.

Greg

TonyfromNY

2006-03-28, 9:21 am

Gollum wrote:
> Thanks for the response. I wasn't trying to skip my homework. I was
> more interested if the basic technique of coating the roof, instead of
> a new roof, was viable.
>
> Greg

Roof coatings are almost always an option, unless you let the roof go
too long and it becomes structurally unsound. There are a lot of
advantages to coatings over replacing a roof besides just the cost
savings. If we can be of any further assistance though, feel free to
call.

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