To qualify for material participation, you generally need to meet either the 500-hour or 100-hour rule.

. $2-4 per sf.Rigid Core Vinyl: This material is available in SPC (stone polymer composite) and WPC (wood polymer composite) types.

Quote from @Davin Manfredi: This is a construction material on the remodel or work done on the home, so I would say it would fall on you.

A builder’s risk policy is also worth exploring, as it can protect the property, materials, and equipment during your restoration work. 

Ask them to explain.2) They should provide you with the materials receipt, which you'll need for the warranty!

Shortages of construction labor and material will also have a major impact upon pricing. 

Quote from @Conrad Tillman: Quote from @Jay Hinrichs: LOL  its kind of like 50 ways to leave your lover.And its very much dependent on your jurisdiction. however I will list the stuff I have gone through the last decade or so through about 200 new builds in 4 markets.1. material price fluctuations. rarely down almost always up pretty much annually. 2. as we all know labor  scarce  and or unqualified and do poor work..

If you will be purchasing materials those cards offer some discounts and in addition you can get pro discounted pricing on larger orders as well.

3- what is the cost of materials?

I actually have two options for this property: 1) Rent out the existing 25 storage units AND rent out the building plus add the 25 additional units out of pocket.OR 2) Rent out the existing 25 storage units and added the 25 additional units out of pocket to rent them out BUT keep the metal building for my GC business to where we have offices and storage for building materials.