bummer
I have had 0 issues in 1.5 years
the garage door wall button is the motion sensor on mine and of course it goes on when you open the garage door
I would be careful of GregSmith
they recently sold out to another large mail order type tool company and while they pretend their showrooms are closed due to COVID-19 some are just closed for good
that being said I bought my lift from them not knowing this 2 months ago and I was told...
is this your first Novel ?
lol
i would at least let it have a winter to prove or fail itself or throw a meter on it and do some math before you well up much more ;-)
heck your not sided or rocked just build the header down and run the flooring into that threshold to avoid a big step and a problem finishing the exterior under the threshold
Does the door have an integrated threshold ?
brick mold = this is a brick opening ?
when you do the flooring do you anticipate having to cut the door bottom ?
Picture would be nice ;-)
raise jamb to anticipated new floor height ,,
make a double top jamb ..
get creative with larger...
i have not seen a guide coat used and you are flooding the area the guide coat if it existed would be gone in one pass and hard to reapply underwater lol
sure you can mark the floor before with paint and even make a map then large sweeping passes
and recheck with the level often...
you are renting this right ?
https://www.homedepot.com/p/rental/EDCO-Concrete-Grinder-10-50200-HD/309419362
i did not think they had any grit choices ?
cure article http://concretepalette.com/how-long-should-you-allow-concrete-to-cure-before-grinding/
I have read a bit on the epoxy coated not being all that.. no expert here ,,
like coating a vehicle frame to prevent rust ,, once rust/moisture finds its way in it is trapped and won't evaporate and goes unchecked
When I do sidewalks in small sections like that I drill holes in the end form and use rebar to tie into the next pour.
if rust is a concern you could rattle can paint the protruding rebar after you took the form off or like mentioned seal the joint and prevent soil washout and freeze...