Fixing driveway pavement next to a permanent wood foundation
Hi GBA Community,
I’m looking for input on approaches and products to replace or renovate a 30-40 year old asphalt pavement parking pad and driveway that is directly adjacent (adjoining) a home with a permanent wood foundation (PWF) of similar age, located in Climate Zone 7a (British Columbia, Canada). The PWF is in good condition and has adequate foundation drainage and general site grading, however as compaction around the PWF isn’t to a level of providing a great road/driveway base the 2-3 ft strip of asphalt closest to the foundation shows greater signs of faituge cracking. There are also mild tire depressions and general breakdown of the top inch of apshalt on the flatter apron area adjacent to the home. In addition to suitable paving products that may have benefits beyond conventional asphalt or concrete, I would like input on how to deal with the interface between the driveway apron and the PWF, or alternatively separating the driveway from the structure by developing a landscaping setback (driveway border) away from the PWF similar to what we have done around the lawn interfaces of the home (i.e. 6″x 6″ pressure treated border and drainage rock). As the apron should ideally slope and drain to the adjacent lawn area after being regraded I’m not that concerned with using a porous pavement product or needing to reduce the net runoff from the site, especially due to the clay-silt nature of the underlying soils on this site. Any advice on approaches or other resources would be greatly appreciated.
Kindest regards,
Jason
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Replies
Jason,
What you are suggesting is all I could come up with in similar circumstances. I used pt. 2"x6" to form a border, and filled the gap with clear crushed gravel. One nice thing about it is that it is easy to modify or remove for access, or if plans change.