DIYbanter - View Single Post

pe wrote:
On Sat, 10 Jun 2006 20:02:48 GMT, "Walter R." wrote:

Great advice

One or two layers of HEAVY roofing felt on the concrete will prevent weeds,
support the bricks, and prevent them from shifting.

snip...

It probably won't stop the weeds, at least if his weeds are similar to
mine. Invariably I had weeds in the sanded cracks which resulted from
windblown seeds lodging there and sprouting. The warm bricks and damp
sand provided an ideal seed-sprouting environment. Having the roofing
felt under the bricks might actually make the environment warmer (a bit
of insulation from the slab) and moister (keeping water from running out
the bottom) thus accelerating the sprouting.

--
John McGaw
[Knoxville, TN, USA]
http://johnmcgaw.com