FMV of roof at property sale date 3x its cost?

[wafco33]

Other posts say use the roof current FMV, but since the sale of entire property is 3x the purchase cost, a FMV of roof 3x what I paid for it seems unreasonable

I think the right value to "sell the roof asset" is $1 above its current depreciated value so a net Gain of $1 is realized. Could also sell for a zero gain. Any direction would help

[Critter-3]

ALL the assets listed for depreciation need to be sold so you need to allocate the sale price & costs of sale over all of them.  You cannot just give it a $1 sale price as it will throw off the total calculations.

 A simple example : 

asset              original basis             % of total basis      sales price     cost of sale

house             70,000                          70%                         140,000          14,000

land                20,000                           20%                            40,000           4000

roof                10,000                           10%                             20,000           2000

 totals            100,000                         100%                         200,000         20,000

[Mike9241]

Other posts say use the roof current FMV, but since the sale of entire property is 3x the purchase cost, a FMV of roof 3x what I paid for it seems unreasonable.  FMV determination is not straightforward. The land could be worth 10 times what you paid for making the building/roof worth less than 3 times what you paid

[Critter-3]

Who cares what anything is worth right now or any other nonsense figures  ... it doesn't matter for the allocation ratio computations  since you use the original basis used when you placed the asset into service.  This means you don't need to concoct any allocation method since there is already a simple one in place that the IRS approves of and you can support in an audit if needed.