Answers

You need to prep the surface properly to make it last. If there is any of the original stain left you should either remove it or use the same kind. Be sure to wash it with Log Wash at the very least.

first, do not fill the cracks (checks) !!! You can chink right on top of the old mortar chinking.

Get Log Wash from Perma Chink. call 800-564-2987 to order.

Rule of thumb: If the chink lines 3/4” or less use caulk (Energy Seal), if it is 3/4” or larger use chink (Perma Chink). You should probaly chink/caulk the interior. Call Mike at 866-670-3020 for a quote.

Iwould wash them really good with Log Wash. Call 800-564-2987 to buy it.

Call Perma Chink in TN. They can custom color mix chink for you. Get your wallet out!

Yes

NO !!! Spray foam is like acotton ballabsorbing moisture and holding it against the wood starting rot.

Rain gutters, yes.

Call Mike at 866-670-3020 for help.