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I don't know the terminology for pitches, etc, but I would like to keep the architectural detail of the ski slop over the porch. We had a quote for GAF Timberline shingles with a good membrane and new sheathing. As an afterthought we asked about the cost versus metal roof, and off the top of his head it would be about $2,000 more. (nothing firm). The roof is about 30 squares for shingles. 3000 sq ft I think.
The house is in Oklahoma, and hail is also a concern. Would the steep pitches of the roof help prevent severe pock marks vs a flat roof?
The roofing salesman seemed to be steering us away from a metal roof. Something about the insurance company wouldn't insure it unless all the old materials were removed and new sheathing put down, and also that insurance coverage may not cover hail damage versus an asphalt roof.
The asphalt roof he quoted us on was GAF fiberglass impregnated shingles. I don't know if the GAF shingles have a greater profit than metal, even with the cost of a metal roof guesstimated $2,000 higher. We will get several quotes before deciding.
The roof has 2 layers of shingles and on the back side 3, with original shakes.
We like the durability of metal roofs and are leaning that way if there are ones that reflect some of the midwest heat. Obviously a white vinyl sided house can't handle a white roof cosmetically, but are there other light colors that will work just as well in our area?
I appreciate any advice you can provide. The roof is not leaking, so we have a little time, but we would like to re-roof it before winter, or wait for spring '06 and take advantage of the $500. tax credit for energy efficient metal roofs.
ps - I apologize for the size of the pic for the forum.
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As an association we are restricted to comments on warranties and costs etc. It would appear that your existing roof has failed. The foirst thing I would do is investigate why it failed before I install the same type of material again.Certainly a metal roof will provide a long term solution to your problems however unlike shingles there are many more systems and finishes available. Make certain that he is not quoting on an agricultural utility panel. You should be using a PVDF, SNP or granular finished product with a good G90 or AZ 50 substrate.
Certain metal roofs are hail tested and carry insurannce rebates. Our products for example are tested to the highest Class 4 UL 2218 test. Ask for this certification even with other materials. As to heat, there are reflective cotings now that allow many more options than white. Look for the energy star rated material.
The building code calls for proper ventilation so certainly have this looked at at the same time as it will save you on your AC costs and provide a much more comfortable home. I think when you identify why the exixting roof failed ventilation will come up high on the list and should be addressed even if you stay with the same system.
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Thank you for your reply Alan. I don't understand what you mean about my existing roof failing. ?? The roof needs replacement from age. Are you seeing something else besides normal aging that I should be concerned about?
The house was built in 1910 and is a hodge podge of several layers. The latest layer is about 14 yrs old. Some sheathing has been replaced through the years, but other areas reveal original shakes under asphalt shingles, so the sheathing on those areas (if any) is original.
In this area, 15yrs is the life expectancy for a shingle roof and the reason we'd like to have a metal roof installed, since we'll go through the expense of a new roof anyway. The sun bakes them unbearably and the winds loosen the shingles. We have adequate ventilation in the attic with vent fans and vents throughout. There is no moisture or wood deterioration from inside inspection of the roof in the attic area.
I'm assuming the slopes and valleys will not be a problem for a metal roof? I will check your association for contractors in our area and follow your recommendations for materials certification, etc.
thank you for your reply.
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Sorry but in my view when one buys a shingle roof that is warrantied for 25 yrs you should expect it to last longer not shorter and as it lasted only 15 yrs, I say that it failed. Now either it is a product problem or an application problem, but certainly I would identify the problem and correct it no matter what product you have installed. If you have attic fans then you have a ventilation problem as they tend to short circuit the air. Ventilation is not just about having air it is about having balanced intake air at the eaves and exhaust air at the ridge equal to 1 sf of free air for every 150 sf of ceiling area which is minimum. Good luck.
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Well I appreciate your response, but from what I've read, several layers of shingle alone will cut the life of the shingle. Because the ORIGINAL 1910 shakes are under layers of roof on the back side, I assume all reroofs were crap jobs.
We just bought this house, so I have no idea what quality of shingles were put up there. What I really WANTED to know was if we could get a metal roof and preserve the slope of the roof architecturally. Unless I misread your replies, that was never addressed.
I will use a certified installer, have spoken with GAF and Malarkey and plan to use a quality shingle, with new decking. I really don't know what more I can do. If more ventilation is needed that will be addressed at the time of reroof.
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Most vertical seam metal roofs will not accommodate the "ski slope" portion of your roof. It would be possible for a qualified contractor to form something special on the job to do this.
Many o the shingle, slate, and shake facsimile metal roofs shown on this website could be used on your roof and would allow for the ski slope curvature.
10/19/2005
Dura-Loc Roofing Systems, Inc.
10/20/2005
10/20/2005
Dura-Loc Roofing Systems, Inc.
10/21/2005
10/21/2005
Isaiah Industries, Inc.
10/22/2005