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Old 08-24-2010, 12:31 PM   #31
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My Flat roof project-help!


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Hi, don't use aluminum flashing with a torch applied roof!!!

What mill aluminum? .032 or .019? We typically will use the thicker .032 for flat roof flashings, although I suppose on residential single ply .019 would be acceptable. What paint finish? Baked on enamel 15 year color warranty or premium kynar coated 25 year color warranty?

What type of insulation are they recommending? 1/2" Polyisocyanurate or 1/2" fiberboard? The price difference is vast when comparing ISO to fiber. This actually also brings up another point, is the ceiling in that flat roof section insulated with fiberglass already? I'm assuming it is which I would then install 1/2" fiberboard... but that also brings up another question. What about ventilation?

Fiberboard has little R value, and isn't being installed for the R value, but as a seperator between the roof and the sheathing, which is necessary. Therefore ventilation is required.

What about system ratings? How is the modified goingt o be installed fiberboard with a base sheet and a smoot black membrane? This is a 10 year roof. Add a granulated over that and you now have a 20 year roof. See my point?

PVC or EPDM what mil? .45, .60, .80? How is it installed, mechanically attached or fully adhered? A .45 mechanically attached is a 15 year roof while a .60 or thicker fully adhered is a 20 year roof. .90 EPDM fully adhered and double seamed is a 30 year roof.


Any roof would suffice to be honest. Typically on a residential like this we would isntall a granulated modified bitumen to match the shingles. I would install no less than a 15 year rated roof, never a 10 or 12, and preferrably a 20 year rated roof if the budget allows. The only reason in this situation I opt for the modifiued is the color match. If it's completely not visible from the ground, any membrane will be fine. I personally prefer the single ply. If you want reflectivity go with PVC.
can you come install my roof please????? they are not giving me a lot of details. the roof is not visible from the ground. i am looking for the longest lasting roof.

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Old 08-24-2010, 12:32 PM   #32
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My Flat roof project-help!


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Does the flat roof have any penetrations like vent pipes and stuff?

If not then why not go with the self adhered mod bit like the Certainteed Flintastic which is granulated and comes in different colors.
yes it has a couple vents and stuff.

also Grumpy- how do i do ventilation? because right now i got soffit vents all along the bottom, but nothing at the ridge. so i need to install ridge vents. can you do that properly with a flat roof?
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Old 08-24-2010, 12:34 PM   #33
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My Flat roof project-help!


"Seeya" I see you're from Lexington Ky, so that makes us about 40 miles apart. As far as the roof subject, I'd look into the framed gable roof.........why?, because has a higher resale value, don't have to worry about heavy snows and a leaking roof . So lets have it Seeya ,how would you do a carefree roof?........please inlighten me. Bernie
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Old 08-24-2010, 12:47 PM   #34
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My Flat roof project-help!


If this is a insurance job,stay away from the insurance companies man. They work hand in hand, and if you let the man give you a bid, you'll no doubt be locked in on the cheap bid. What you don't know is that if the low bid runs over ,the insurance company will help him out. I had a fire many years ago ,and I got stung for 5 grand with the "low bid" concept.
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Old 08-24-2010, 12:56 PM   #35
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My Flat roof project-help!


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If this is a insurance job,stay away from the insurance companies man. They work hand in hand, and if you let the man give you a bid, you'll no doubt be locked in on the cheap bid. What you don't know is that if the low bid runs over ,the insurance company will help him out. I had a fire many years ago ,and I got stung for 5 grand with the "low bid" concept.
the insurance is not paying for it-i just asked for referrals. what do you mean the insurance company will help him out?
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Old 08-24-2010, 01:27 PM   #36
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My Flat roof project-help!


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Originally Posted by bernieb View Post
"Seeya" I see you're from Lexington Ky, so that makes us about 40 miles apart. As far as the roof subject, I'd look into the framed gable roof.........why?, because has a higher resale value, don't have to worry about heavy snows and a leaking roof . So lets have it Seeya ,how would you do a carefree roof?........please inlighten me. Bernie

Not necessarily true about the resale value. If the architectural style would commonly use a low pitched roof (Frank Lloyd Wright's designs come to mind as a far fetched example), then adding a gabled or hipped roof could ruin the value and charm.

Also, to gable a roof like the OP's, the load points would change and some engineering and inside structural work would likely be necessary. Then there's the gable's to deal with.

I think maybe you're equating low pitched roofing with roll roofing or some specific product. There are lots of systems out there, some better than others and lots of installers of varying degree of skill. Your point is well taken in that it's harder to screw up a steep pitched roof because of the shorter dwell time of the water. But we fix way more screw ups on steep roofs than low pitched ones. And they're all mostly flashing related.

There's no such thing as a completely carefree roof. But I've got some low pitched roofs that I've done that are going on 30 years old now. And I do maintenance on several that are 100+ years old.

Where are you located?
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Old 08-24-2010, 02:04 PM   #37
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yea i agree steep slope may be better for water protection but i dont have funds to go and expand the integrity of the rafters and what not.
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Old 08-24-2010, 02:28 PM   #38
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Federer, here's the sequence of events. I had a fire back in the sixties, a bad fire I might say,only paid 16,000 for the ranch brick three bedrooms ,nice neighborhood. Long story how a open can of gas got knocked over and into the water heater. Called insurance company and he said to get two bids of my choice. One was 19,300 and the other was 19,000. Gave to insurance man and he said he'll have a quote from a company. I said okay(bad move) he come in at 14,000. I knew from the start that I'd be doing the work , and I didn't let him know that from the start. After living in a Motel with three kids and a wife for a month, the insurance company said, you can get who you want to fix your home ,but 14,000 is all you get. Family falling apart ,I took the money. Yes, I put the house back together and lived in it for another 25 years. Insurance compaines work with a general contractor, usually a family member or a inlaw. Where ever there's money ,there's a crook somewhere. Hey, you may have an insurance claim.........be careful.
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Old 08-24-2010, 02:42 PM   #39
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"Seeyou" I'm in the wilderness, close to Ky River,near Perry Park, Owenton Ky. Will be 73 next week and have a wife of 53 years that hates my guts........god I love that woman.
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Old 08-24-2010, 02:56 PM   #40
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My Flat roof project-help!


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"Seeyou" I'm in the wilderness, close to Ky River,near Perry Park, Owenton Ky. Will be 73 next week and have a wife of 53 years that hates my guts........god I love that woman.
I was just in Owenton Sunday. My wife is from there and they're getting ready to tear her family home down (next to the Baptist church). We went up to salvage some stained glass out of it before they ran a track hoe through it.

I know Perry Park, or used to. I worked for the elec co when they were developing it. Pretty area.

Happy birthday and many more.
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Old 08-24-2010, 03:06 PM   #41
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My Flat roof project-help!


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Federer, here's the sequence of events. I had a fire back in the sixties, a bad fire I might say,only paid 16,000 for the ranch brick three bedrooms ,nice neighborhood. Long story how a open can of gas got knocked over and into the water heater. Called insurance company and he said to get two bids of my choice. One was 19,300 and the other was 19,000. Gave to insurance man and he said he'll have a quote from a company. I said okay(bad move) he come in at 14,000. I knew from the start that I'd be doing the work , and I didn't let him know that from the start. After living in a Motel with three kids and a wife for a month, the insurance company said, you can get who you want to fix your home ,but 14,000 is all you get. Family falling apart ,I took the money. Yes, I put the house back together and lived in it for another 25 years. Insurance compaines work with a general contractor, usually a family member or a inlaw. Where ever there's money ,there's a crook somewhere. Hey, you may have an insurance claim.........be careful.
that sounds like my squence. but i am slow-i dont get what the issue is here? i got an estimate from the insurance company and they cut me a check, and i can use whoever i want. whats wrong with using someone they referred? workmanship issues?
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Old 08-24-2010, 03:50 PM   #42
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My Flat roof project-help!


A lot of things to consider here Federer. All I'm saying is that when money is involved, you have to be careful, and it sounds like you are doing just that. Your insurance man may have give you a "kiss-off" check. Afterall the less claims he has ,the bigger the bonus he gets. Nobody knows how much damage your roof system has right now, and everybody bids for the worst. My suggestion is ,go with the one that you feel you can trust, and live with it. Wouldn't hurt to check with the "Better Business Bureau" but keep in mind a lot of people out there want the work done ,but hate to turn loose of the almighty dollar, so a good contractor may have several bad marks on him.
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Old 08-24-2010, 05:33 PM   #43
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i am trying to be careful, but i dont know how to go about it! i just called up a roofing supply company today and got more referrals. so we will see what kind of bids they give me. i cant tell who i trust-i havent found one i trust yet! maybe i should just pay you and grumpy to come and do it :D
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Old 08-26-2010, 11:09 AM   #44
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Ok i realized a new issue I forgot to address before! what kind of ventilation should i get? the roof slope is too flat for a ridge vent. what options do i have?
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Old 08-26-2010, 11:20 AM   #45
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is flashing supposed to be ripped up when you install new gutters?

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