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Hello,

I need to get a roof replaced and I found non-toxic shingles, but all the

ice and water shields for laying beneath the shingles are petroleum based.

I learned they used to used felt, but now even the felt is soaked in a

petroleum based product first. Is there a safer ice and water shield on the

market?

Elyse

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Elyse,

I'm not sure where you live, but I doubt that any roofing products would be able

to affect the inside of your house. Of course, I am no expert and do not know

how sensitive you are.

There should be plywood underneath whatever you lay the roofing materials on and

my lay-guess is that it should not off-gass into the house. Even if you have no

enclosed attic, I would assume that you'd at least have inner walls underneath

the plywood or partical board. I'd be more concerned if you lived in a very hot

climate like AZ where some friends have mentioned the heat in summer being so

strong that they need to sat inside as alot of things off-gas in the heat. But

even then it would be affecting the outside air and the shingles would be

totally covering the felt or ice and water shield as the heat makes the shingles

adhear to any sub-roofing material. The felt or iws should effectively be sealed

in between the plywood and the shingles.

If you had to replace the plywood, then maybe that would be of concern as both

commercial plywood and even more so, partical board has alot of formaldehyde. In

our home, we have an accessable attic. If we had to get new plywood, I would

look into the type that has less formaldehyde. I think that some companies sell

it w/o either the urea formaldehyde or phenol. I don't think that there is a

kind that is totally formaldehyde-free. There is a distributor of non-toxic

products in Charlottesville, Va that sells this kind of wood and you'd be able

to get better info on it than my memory can offer. Do stay away from partical

board as that is really dosed with formaldehyde.

But if you are considering ice and water shield that I'm guessing you must live

in a cold climate? Most of the time, even then, I think that ice and water

shields are used around the perimeter of the roof and not all throughout.

I'd personally be really interested to know where you've been able to get

non-toxic shingles.

Hopefully those more knowing can confirm, add to or refute anything I've

mentioned.

Hope this is helpful,

Sam

Hello,

I need to get a roof replaced and I found non-toxic shingles, but all the

ice and water shields for laying beneath the shingles are petroleum based.

I learned they used to used felt, but now even the felt is soaked in a

petroleum based product first. Is there a safer ice and water shield on the

market?

Elyse

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Sam,

Good point about the wood, if any needs to be replaced it could be a problem

finding non chemically treated wood.

I am more sensitive than most people, I'm affected by things that many

aren't (like fabric softener and other everyday things that people use)

which is why when other people are not affected it doesn't mean I won't

be. Technically the roof is supposed to be sealed and toxic materials should

not be able to get through to the house, but there's no way to know for

sure. I wish there was a way to know how good a seal in the roof is and if

formaldehyde would sneak through to the house.

It's very difficult to find safer versions of all the possible materials

that might be used. Maybe like you say because I'm not in a very hot

climate it might be ok. Our summers do get hot and very muggy in Canada,

but not nearly as hot as Arizona, and they don't last as long either.

Metal roofs are non-toxic, but would be noisy when it rains. I found

shingles from two places. One is www.enviroshake.com and the other is

www.authenticroof.com which are supposed to be made from an inert recycled

plastic and last much longer than typical shingles. (both supply only

shingles, not iws or other materials. Btw I think the iws goes over the

whole roof, not just the edges).

Do you know the name of the company in Charlottseville that sells the better

wood? They might be able to put me in touch with a supplier. Thanks,

Elyse

On Sat, Mar 20, 2010 at 3:58 PM, Sam <yaddayadda53@...> wrote:

>

>

> Elyse,

>

> I'm not sure where you live, but I doubt that any roofing products would be

> able to affect the inside of your house. Of course, I am no expert and do

> not know how sensitive you are.

>

> There should be plywood underneath whatever you lay the roofing materials

> on and my lay-guess is that it should not off-gass into the house. Even if

> you have no enclosed attic, I would assume that you'd at least have inner

> walls underneath the plywood or partical board. I'd be more concerned if you

> lived in a very hot climate like AZ where some friends have mentioned the

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Hi Elyse,

I had to dig around for the name of the company. But finally found it. It is

called Nature Neutrals.

" http://www.natureneutral.com/php-bin/ecomm4/categories.php?category_id=30 " In

the same website you can look up AFM Safecoat. Just click on the link that says

" sealers " and it will take you there. AFM SafeSeal is something that supposodly

you can use to seal in any offgassing that might come from treated plywood and

might work as an overall way to seal in any possible off-gassing. Of course if

you are senstive, you might want to buy this or any other sealer that you find

and paint a sample on something you know doesn't bother you. Then keep it near

your bed for a few days and see if you react.  

At one point we thought we were going to have to replace the plywood on our

home, and I did speak with the people at Nature Neutrals, who gave me the best

price and quality plywood. If I recall correctly even the non-toxic plywood has

some amount of naturally occuring formaldehyde or some lesser type that may

still be used. I think the really bad stuff is urea formaldehyde and lesser of

the evils is the phenol formaldehyde. Maybe someone more versed could explain it

to you better than I can. 

If you find the safeseal really works well, you might be able to use regular

plywood and save some money. I would not recommend using particle board as it is

way more toxic than plywood.

I'm no expert, but I doubt that there would be serious enough off-gassing within

your house in the Canadian climate at any time of year. Of course though experts

like Carl or Jeff would be better versed in building issues by far. Perhaps you

need to check with a consultant to get an expert idea.

Either way, if a sealer of some kind seems compatable with you, maybe the thing

to do is to at least for easing your mind would be to seal in the inside of the

plywood?

Here is AFM website which would have more info and you can also talk with their

tech support. " http://www.afmsafecoat.com/ "

The enviroshake shingles look very interesting. Thanks for sharing.

Sam

--- On Sun, 3/21/10, mec <macedgeca@...> wrote

Sam,

Good point about the wood, if any needs to be replaced it could be a problem

finding non chemically treated wood.

I am more sensitive than most people, I'm affected by things that many

aren't (like fabric softener and other everyday things that people use)

which is why when other people are not affected it doesn't mean I won't

be. Technically the roof is supposed to be sealed and toxic materials should

not be able to get through to the house, but there's no way to know for

sure. I wish there was a way to know how good a seal in the roof is and if

formaldehyde would sneak through to the house.

It's very difficult to find safer versions of all the possible materials

that might be used. Maybe like you say because I'm not in a very hot

climate it might be ok. Our summers do get hot and very muggy in Canada,

but not nearly as hot as Arizona, and they don't last as long either.

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I put a green addition on my home a few years ago and used NO plywood anywhere.

You do not have to use plywood on a roof, plain spruce boards will work just

fine. D

>

> Hi Elyse,

> I had to dig around for the name of the company. But finally found it. It is

called Nature Neutrals.

" http://www.natureneutral.com/php-bin/ecomm4/categories.php?category_id=30 " In

the same website you can look up AFM Safecoat. Just click on the link that says

" sealers " and it will take you there. AFM SafeSeal is something that supposodly

you can use to seal in any offgassing that might come from treated plywood and

might work as an overall way to seal in any possible off-gassing. Of course if

you are senstive, you might want to buy this or any other sealer that you find

and paint a sample on something you

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Sam,

Thanks so much for the website address. I've heard very good things about

AFM as well.

It's possible the amount of offgassing form wood or an iws might not be a

problem, but there's no way to know for sure. It's not the kind of thing

that can undone, so I'll try to get whatever safer materials possible.

On Sun, Mar 21, 2010 at 12:21 PM, Sam <yaddayadda53@...> wrote:

>

>

> Hi Elyse,

> I had to dig around for the name of the company. But finally found it. It

> is called Nature Neutrals. "

> http://www.natureneutral.com/php-bin/ecomm4/categories.php?category_id=30 " In

> the same website you can look up AFM Safecoat. Just click on the link that

> says " sealers " and it will take you there. AFM SafeSeal is something that

> supposodly you can use to seal in any offgassing that might come from

> treated plywood and might work as an overall way to seal in any possible

> off-gassing. Of course if you are senstive, you might want to buy this or

> any other sealer that you find and paint a sample on something you know

> doesn't bother you. Then keep it near your bed for a few days and see if you

> react.

> At one point we thought we were going to have to replace the plywood on our

> home, and I did speak with the people at Nature Neutrals, who gave me the

> best price and quality plywood. If I recall correctly even the non-toxic

> plywood has some amount of naturally occuring formaldehyde or some lesser

> type that may still be used. I think the really bad stuff is urea

> formaldehyde and lesser of the evils is the phenol formaldehyde. Maybe

> someone more versed could explain it to you better than I can.

> If you find the safeseal really works well, you might be able to use

> regular plywood and save some money. I would not recommend using particle

> board as it is way more toxic than plywood.

> I'm no expert, but I doubt that there would be serious enough off-gassing

> within your house in the Canadian climate at any time of year. Of course

> though experts like Carl or Jeff would be better versed in building issues

> by far. Perhaps you need to check with a consultant to get an expert idea.

> Either way, if a sealer of some kind seems compatable with you, maybe the

> thing to do is to at least for easing your mind would be to seal in the

> inside of the plywood?

> Here is AFM website which would have more info and you can also talk with

> their tech support. " http://www.afmsafecoat.com/ "

> The enviroshake shingles look very interesting. Thanks for sharing.

> Sam

>

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Great tip on the Spruce Diane, thanks.

On Mon, Mar 22, 2010 at 1:58 PM, dianebolton52 <dianebolton@...>wrote:

>

>

> I put a green addition on my home a few years ago and used NO plywood

> anywhere. You do not have to use plywood on a roof, plain spruce boards will

> work just fine. D

>

>

>

> >

> > Hi Elyse,

> > I had to dig around for the name of the company. But finally found it. It

> is called Nature Neutrals. "

> http://www.natureneutral.com/php-bin/ecomm4/categories.php?category_id=30 " In

> the same website you can look up AFM Safecoat. Just click on the link that

> says " sealers " and it will take you there. AFM SafeSeal is something that

> supposodly you can use to seal in any offgassing that might come from

> treated plywood and might work as an overall way to seal in any possible

> off-gassing. Of course if you are senstive, you might want to buy this or

> any other sealer that you find and paint a sample on something you

>

>

>

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I got to where I don't like the AFM Safeseal. If you don't use it all at once,

it can go funking on you. I think it gets bacterial contamination, or

something?

Anyway, I got to liking AFM's Hardseal better. It has alcohol in it, so it

can't go funky. The alcohol will definitely bother you, if you are sensitive.

But it goes away in a few days. For me, it was worth the trade off.

Todd in Tenn.

=======================================================

> >

> > Hi Elyse,

> > I had to dig around for the name of the company. But finally found it. It is

called Nature Neutrals.

" http://www.natureneutral.com/php-bin/ecomm4/categories.php?category_id=30 " In

the same website you can look up AFM Safecoat. Just click on the link that says

" sealers " and it will take you there. AFM SafeSeal is something that supposodly

you can use to seal in any offgassing that might come from treated plywood and

might work as an overall way to seal in any possible off-gassing. Of course if

you are senstive, you might want to buy this or any other sealer that you find

and paint a sample on something you

>

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