You are confusing two completely different products/goals. If you already have money in a Roth IRA, you can buy an annuity type product that would include long term care. Or you can just purchase a combo life/LTC policy with money outside your retirement account. For help on these products call my trusted LTC people –Brian Gordon or Peter Florek at Murray Gordon Associates– 800-533-6242.
You can use my name or not, because I get nothing from this recommendation but the knowledge that you will be treated well and responsibly.