Hi All - William makes some really good points - the underlayment can be a big problem on tile roofs. We have a (nearly) squeaky clean track record with roof leaks, but have had one nightmare of a problem on an old tile roof where the felt underlayment was failing and leaking essentially all over the place, especially around existing skylights. Just having our crews up on the roof walking on the tiles appeared to have disturbed the felt enough to trigger leaks. It is definitely safest to involve a roofer to take everything off and start fresh on a tile roof. Waterproofing with a roofer can be done by either adding comp shingle under the arrays (especially good choice for large rectangular arrays) or they can waterproof the tiles with a flashing system and standard cylindrical solar posts.
Don't work on tile roofs over 10 years old without involving a roofer to at least check the condition. If the roof is relatively new, we have found that the tile replacement mounts are the best bet. Pegasus is another brand besides Iron Ridge (formerly Quickmount) that makes tile replacement mounts. Definitely don't get involved in natural clay tile or slate roofing without a roofer! I frequently talk with installers who work in parts of California with newer housing stock where concrete tiles are very common and they install some sort of J-hook product. I fear that they have lots of leaks in their future, only time will tell. August Luminalt On Wed, Aug 18, 2021 at 2:00 PM jay <[email protected]> wrote: > HI mac, > > One issue is if the roof is rated for added weight of the solar in > addition to the tile. > > If its not, then one technique is to remove the tiles, install some other > roofing material such as composition shingles and then install the solar > over that. > Often you can reinsert the tiles at the edges so it looks normal. > > Oh and if they are low fired clay tile, they can break just walking on > them. > > Lots of good mounting brackets out there > > jay > > peltz power > > > > > > On Aug 18, 2021, at 10:12 AM, Mac Lewis <[email protected]> wrote: > > Hello Wrenches, > > Im looking for recommendations on the best way to mount solar on tile > roofs. We don't have too many tile roofs in our area and admittedly we are > afraid of them. I know some of you are probably doing this all of the > time. What is your favorite way to approach a tile roof? Hooks or tile > replacement or other? Any advantages to specific brands? > > Thanks! > > -- > > > > Mac Lewis > > *"Yo solo sé que no sé nada." -Sócrates* > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > > > _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
_______________________________________________ List sponsored by Redwood Alliance Pay optional member dues here: http://re-wrenches.org List Address: [email protected] Change listserver email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org There are two list archives for searching. When one doesn't work, try the other: https://www.mail-archive.com/[email protected]/ http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: http://www.re-wrenches.org/etiquette.htm Check out or update participant bios: http://www.members.re-wrenches.org
