Hello:

Have a house with T1-11 (plywood panel type of stuff) siding on it, which
isn't in the greatest of shape.

In the Spring, will be having the typical horizontal Cedar Clapboards
installed.

The two contractors we've had over both said to place the new clapboards
right over the existing T1-11.

Have two questions, please.

One of the contractors says he uses "AYE" quality level cedar clapboards.
Guess there are different "quality levels" for this stuff.

a. Is this AYE grade what we want ?
Are there "better" cedar siding grades to consider, or is this what most
folks use ?
Brands, etc. ?

I've asked for pre-primed clapboards, but is there anything else I should be
specifying ?

b. Surprisingly, one of them said he does not like Tyvek, and has had poor
results with it.
He wants to use #15 Felt between the existing T1-11 and the new
Clapboards.

I was under the impression that Tyvek was a sort of "standard" these
days.

Would sure appreciate any thoughts on this propoised use of #15 Felt.

Thanks,
Bob