Roofing Paper as Weed Barrier ?

Is there any reason not to use roofing (tar) paper under pavers to prevent weed growth? Either way, how long would this be expected to last?
- Magnusfarce
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Landscaping cloth works better - get the pro grade, say at home depot. I believe it is made of glass fiber felt, which lasts a very long time, yet allows necessary drainage, which tarpaper does not, and will make the pavers mossy, sooner. BTW I've seen bug/rodent holes on tarpaper that lays on the ground.
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Magnusfarce wrote:

It is of little or no value and may trap water that you want to filter through.
--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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Weeds will grow above the paper, water will be trapped, Use roundup.
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snipped-for-privacy@webtv.net (m Ransley) wrote in message

Good advice...not. Roundup will not, does not and won't ever stop weed growth. All it will do is kill what is already growing.
Harry K
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Harry K wrote:

Yep, Triox would be the better product. Apply it once or twice a year.
--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math
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On 11/20/2004 1:19 AM US(ET), Magnusfarce took fingers to keys, and typed the following:

If the pavers were laid down correctly, there is crushed stone, sand, or other inorganic material, underneath for at least a few inches, and possibly up to a foot or more, if done professionally. Grass and weeds will not grow in this inorganic material, and the pavers provide protection from light and air borne organic material, both of which are required for plant growth. Where the weeds start to grow, is in the sand between the pavers, and they start to grow from the top. That is because, over time, organic material, which will support growth, gets into the sand, and wind or water borne seeds start to grow in this organic material. It seems that a microscopic piece of organic material is enough to support the germination of a seed (except where you want seeds to grow, like your lawn, unless you apply lots of extra organic material and tend to it regularly). If you pull out the newly started weeds or grass between the stones, you will see that the roots are only an inch or so deep. They did not start growing from beneath the pavers, so the addition of any roofing material, plastic, or anything else under the pavers will not prevent wind borne seeds from growing between the pavers.
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