Chimeny Resurface In 45 Degrees..? Any Tricks?

qualitywork1

im a mason contractor but have never worked this late in the season,,,i have a chimeny job to resurface mortar over stucco work and fill a few gaps,,,otherwise the structure is fine,,,just ugly ,,,,ive heard a few ideas on how to keep the integrity of the work,,,,,but could always get more advise,,night time now is about 35 degrees or so,,,how can i keep the work from freezing? and is there an additive i could use to help?,,,,,,,,,,,in the winter i start back to carpentry and sheetrock,,,,but i want to do masonry as long as i can,,,,,,,sheet rock sucks please respond....

LNG24

To start with, might help to post this in the Masonry Section. Second, Tarps and a heater.