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Old 12-07-2012, 12:16 PM   #31
Low Slope Roofing
 
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By code you are supposed to tear off after you have two roofs in place. You currently have 1/2 inch of rigid fiberglass insulation, multi-ply built up roof, probably asphalt but may be coal tar pitch, The recover roof is 1.5 inch rigid fiberboard, followed by an asphalt BUR with a granule surfaced cap sheet.

Get a RCI registered roof consultant to come out and design a new roof for you. It will be the best money you ever spent. For starters, you need to get slope to drain in the design. Modified Bitumen does not do well in ponding conditions, and NO MANUFACTURER WARRANTS A PONDED ROOF, AND NO MANUFACTURER WARRANTS RESIDENTIAL LOW SLOPE ROOFING. You need a good design and specification, and a good commercial low slope roofing contractor. Low slope roofing is water proofing, not water shedding, and it must be done correctly.
Actually there are some manufactures who warrant low slope roofs. What's the reason for getting a RCI registered consultant? Any roofing contractor worth his salt can design a proper roof.

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Old 12-07-2012, 12:44 PM   #32
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What manufacturer provides a full system warranty on RESIDENTIAL Low slope roofing systems? I am really interested in knowing this.

The key word in your statement is "Worth his salt" It has been my experience that most residential STEEP roofing contractors are quickly out of their element when it comes to low slope roofing.

Most roofers recommend what they are used to, and therefore comfortable installing, or in some cases what they are licensed to install. There is nothing wrong with this as long as they are not trying to put a square peg in a round hole. When I am called out to investigate a failure, this is usually the case.

There are, without question, roofers that are fully capable of designing and installing any type of roof, and installing it well. They are very few, and very very far between. The same is true of roof consultants, engineers, and architects.

If you start with an RCI Registered Roof Consultant, you at least have someone that has proven proficiency in the theory behind the art through education, lab, and field experience.
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Old 12-07-2012, 01:02 PM   #33
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Quote:
Originally Posted by jagans View Post
What manufacturer provides a full system warranty on RESIDENTIAL Low slope roofing systems? I am really interested in knowing this.

The key word in your statement is "Worth his salt" It has been my experience that most residential STEEP roofing contractors are quickly out of their element when it comes to low slope roofing.

Most roofers recommend what they are used to, and therefore comfortable installing, or in some cases what they are licensed to install. There is nothing wrong with this as long as they are not trying to put a square peg in a round hole. When I am called out to investigate a failure, this is usually the case.

There are, without question, roofers that are fully capable of designing and installing any type of roof, and installing it well. They are very few, and very very far between. The same is true of roof consultants, engineers, and architects.

If you start with an RCI Registered Roof Consultant, you at least have someone that has proven proficiency in the theory behind the art through education, lab, and field experience.
IB or Fibertite, I believe one of them do and I though Durolast does also, I don't know for sure as IB and Fibertite do not have a presence in our area, and I honestly could care less about durolast, as they dont back their warranties on commercial installs.

I tend to agree with you but with already overly priced roofing products adding the expense of a consultant on a residential roof is not something most home owners can afford. Sadly they are at the mercy of the roofing contractor who may or may not be qualified.
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Old 12-07-2012, 01:43 PM   #34
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I use Fibertite on a regular basis. They dont warrant residences any more. They did several years ago. Great product. So is Sarnafil. I dont know IB.
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Old 12-07-2012, 01:49 PM   #35
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IB does I just looked, life time for as long as you own the home.

http://www.ibroof.com/IBinfo/res_residential_roofs.html

The only PVC we install is Versico. I don't know of any others that offer a manufactures warranty besides IB.
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Old 12-07-2012, 01:59 PM   #36
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My opinion regarding foam is that it is a good insulation, and it is great for Quonset huts and oil storage facilities, but that is because the only time I see them is after they fail. There are a lot of them out there though so I guess they work. I worked for an engineering firm that had the contract to inspect the foam roofs warranted by Dow Chemical (Silicone Coating) and the problems that we saw were:

1. Lack of basic roofing knowledge on the part of the contractor, ie foaming over through wall flashing etc.

2. Spraying in conditions that were not conducive to foam roofing. Humidity etc. The stuff was really touchy.

3. Lack of proper preparation. (Foaming over a wet roof, etc.)

4. Thin coating.

5. Mechanical damage by the dreaded HVAC trolls. Flipping their screwdriver into the foam for fun etc.

The guy who ran the program liked them. I think that foam is insulation, not waterproofing.
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Old 12-07-2012, 02:47 PM   #37
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Thats a pretty safe bet by IB. The average homeowner length of ownership is 10 years. Is it transferable?

I just went through the same thing with my furnace. Heat exchanger lifetime warranty to the original homeowner. Nice trick.

Just another reason to NOT base your purchase on warranty
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Old 12-11-2012, 12:55 PM   #38
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Yeah I'm pretty sure it was non-transferable, it would be what they are banking on i'm sure.

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