Home>Discussions>EXTERIORS>Roof Valley replacement without reshingling complete roof
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A. Spruce
Re: Roof Valley replacement without reshingling complete roof
A. Spruce
keith3267 wrote:

If you don't mind a little ugly, there is a roof mastic that is primarily used on trailers that you could paint over the metal with. It is thick and forms a membrane so if there are any holes in the metal flashing, it will fill them and stop any leaks. The stuff is difficult to put down so that it doesn't look like it was done with a broom, thats the ugly part. I would only recommend this if you were within a couple of years of replacing the roof, but since you are not, I am only giving information, not a recommendation.

I've only seen this product in white (Sno-Roof ), if it's available in black, then it would be a decent option. There is an infomercial out there advertising a sealing membrane type material, sold by installing a screen door in the bottom of an aluminum boat, coating the door with the product, then putting the boat in the water with no leaks. Don't know the name of it, but it is an aerosol, so application would be super easy and it would seal up any possible leak points.

Mastercarpentry
Re: Roof Valley replacement without reshingling complete roof
Mastercarpentry

When the warranty covers labor too, then I will follow what is recommended to the letter when shingling. Until then I will do what works best based on my experience with the severe thunderstorms we're graced with here every summer where 2" of rain in an hour with 60+ MPH winds pushing it isn't that uncommon. My ways also work when temps go over 100F without a drop of rain for days on end too. Never a leak when I do them or when done my way but I've seen hundreds of leaks from 'professional roofers' who supposedly did the job correctly. Yes, I go overkill on roofs but the results speak for themselves with my roofs out-performing and out-lasting any others done with those same shingles. That because I'm the poor slob who has to fix the houses after someone else's roof job leaks and I hate doing that kind of work with a passion because there's no need for it to ever happen short of a tornado or hurricane hitting it. Do what works best and screw what anyone else says about that.

Phil

A. Spruce
Re: Roof Valley replacement without reshingling complete roof
A. Spruce
Mastercarpentry wrote:

Do what works best and screw what anyone else says about that.

Phil

I was going to post a similar response, but decided that it was counterproductive to the overall discussion. We all do what works best in our areas, regardless of manufacturer specs, which may or may not cover what we need, kind of like following code, in extreme cases code is best, however, in the real world, many times code is legalese crap, perpetuated by petty functionaries, in an effort to garner more and more fiscal enhancement to the local jurisdictions. Don't get me wrong, I am all for doing things the right and safe way, but that is not always allowable if all the "rules" are followed to the letter in every instance. For those of us that still have it, common sense is an EXCELLENT guide.

I've modified the way I lay valleys over the years to what works best in the field for my area. My methods have been created by working with other trusted contractors and seeing how valleys have been done for the past century during reroof projects. To that end, I have installed metal flashed valleys, cut valleys, and my preferred way, braided valleys. I, have never had a roof related callback due to the way I've done things.

My question to llmotoll was genuine and without malice, I'd sincerely like to see what the roofer's governing body has to say on the subject of roofing in general, but specifically to the construction of a valley, as the search I did of the organization he mentioned did not turn up any such reference document that is available to the public. The worst thing that could happen is that we all might adopt a few of those guidelines in the way we address roofing issues.

llmotoll
Re: Roof Valley replacement without reshingling complete roof
llmotoll

The NRCA set's the standard for roofing. Information is available to all on line. It's not free, so if you really want to learn you need to pay a fee even if you are a member there is a fee$$$

llmotoll
Re: Roof Valley replacement without reshingling complete roof
llmotoll

Yes there are many ways to do anything in roofing. And I'm sure the valley assemblies everyone else has mentioned here that I have disagreed with, function just fine for the most part.

Keep in mind when "industry standards" are called out in regards to how a detail is assembled it talks to "Global Standards". No matter where you are located on Earth this detail will function pending modification for local codes.

A. Spruce
Re: Roof Valley replacement without reshingling complete roof
A. Spruce
llmotoll wrote:

The NRCA set's the standard for roofing. Information is available to all on line. It's not free, so if you really want to learn you need to pay a fee even if you are a member there is a fee$$$

What sense does it make to create "secret" information? The NRCA knows damn good and well that very few are going to pay for this information, which means it's practically useless. Guess it's a good thing that the roofing manufacturer's print installation instructions on the product package.

ed21
Re: Roof Valley replacement without reshingling complete roof
ed21

The NRCA manuals are well and good and I've had the full set for reference before, but in my experience asking a good roofer who is knowledgeable about a certain type of roof for information on how things are best done is invaluable.

dj1
Re: Roof Valley replacement without reshingling complete roof
dj1

From llmotoll: "Guess I was banned for hurting someones feelings about roofing."

I know you refer to me, just say so, it's not that hard.

"feelings"? I lost my feelings when John Lennon was murdered at the Dakotas in 1980.

Next time you want to bully someone, try your boss, ON THE ROOF.

Mastercarpentry
Re: Roof Valley replacement without reshingling complete roof
Mastercarpentry

Knowledge is valuable and I know that sometimes you have to pay for that knowledge, but when you're talking about something every homeowner should have access to so they don't get ripped off by a shoddy contractor that information should be freely given or assured through a permit/inspection system.

Around here you need a permit but there's no follow-up inspection so rip-off roofing has become the norm, and when the roofer's professional trade association goes to the length of hiding such information it tell me that they are not worthy of anybody's trust. Truth need not and should not be hidden from those who need it when it comes to something as simple as a shingle roof. Given the vastness of building codes in general, I can understand there being a cost for the code-book (which I think is far too high) but that information can generally be found for free on specific issues if not it's entirety.

I want my customers to have free access to information so they can know that I am doing the work correctly. I have nothing to hide about my work at all; indeed I want it to be scrutinized and compared to the work of others which does not even come close to my standards. That makes me look good in comparison but it can't happen when the needed information is hidden by somebody whose obvious interest lies in making money instead of widely promoting good trade practices.

The roofing industry has not helped the situation of shoddy workmanship and they bear part of the blame for bad roof work because of their practices.

Phil

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