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Old 09-23-2017, 03:41 PM   #11
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Wood and steel expand at different rates so a direct connection might cause bowing or cracks.

I'm not very concerned about fashion so my short list of ideas includes a big sheet of linoleum running front to back in one piece. It would not eat in to headroom much, it may be waterproof enough for hose cleaning and easy to sweep or mop.

If you want wood, you might look at the system used for old (hot rod) truck beds. They have wooden planks fastened with metal strips between them. If you bolt the metal strips down and let the boards float, it should be fine.

There might be other workable systems like floating tongue and groove but I'm not sure how much they can be trusted so look it up.
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Old 09-23-2017, 07:03 PM   #12
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If you are concerned about getting as much insulation as possible, synthetic carpet with rubber background has an r rating of 2 or 3 - forget the actual details.

If you are concerned with grooves or blemishes in the floor, I have heard of people using truck bed liner paint to smooth things out - no significant increase in thickness.
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Old 09-23-2017, 07:32 PM   #13
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Quote:
Originally Posted by pengyou View Post
If you are concerned about getting as much insulation as possible, synthetic carpet with rubber background has an r rating of 2 or 3 - forget the actual details.

.
Source

What is R-Value in Carpet?


There are many benefits to carpet in a home, one of them being the potential in energy savings when heating your home. Carpeting can insulate a home up to 10 times more than hardwood flooring.

R-value is a term used to describe the thermal resistance rating of carpet, or in plain and simple terms the insulating value. R-value is calculated not from the actual materials as much as from the thickness of the carpet. Most of the time the R-value is printed on the label of the product in the store. If the R-value for your carpet is not labeled or readily available it can be easily calculated by multiplying the carpetís thickness in inches but 2.6. the higher the R-value, the more insulating power it provides to the home.What is R-Value in Carpet?
The carpet padding also effects room temperature and some may say that the padding under the carpet does just as much or more insulating than the actual carpet itself.

Urethane padding has the highest R-value of all padding choices. The R-value rating is anywhere from 1.05 to 2.15 dependent upon the thickness of the pad. Urethane padding is low in density making it a lightweight padding choice and because it is not a dense product it is not ideal for high traffic areas. It is a great option for bedrooms, but you might want to keep it out of the hallway or family room.

Rubber padding has the lowest R-value of carpet padding. It rates between .31 and 1.61. Rubber padding is pretty dense and is still a great option for those high traffic areas like the hallway. Rubber paddings are best when they donít contain fillers.

Fiber padding has an R-value in the middle measuring in at .97 to 1.94, not too much higher than rubber padding. Fiber padding is constructed of hair or plant fibers and is also high density making it another option for a high traffic area. Being in the middle with its R-value, fiber padding, provides a pretty good warming and cooling property along with decent carpet support.

When you add both the R-value of the carpet and the pad together you will get the complete R-value and insulation value added to your home. Some carpet and padding combinations can measure an R-value of over 2.0. The combination of carpet and padding together form to create a strong barrier against heat and cool air loss depending upon the season.

If you are looking to save money on heating and even cooling bills in your home check out the R-value of carpet and padding options that will work for your home and lifestyle.
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Old 09-23-2017, 07:58 PM   #14
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Carpet Cushion Council - R Value of Floor Coverings

Some hard numbers on R values of carpet.



Quote:
Originally Posted by Rusty View Post
Source

What is R-Value in Carpet?


There are many benefits to carpet in a home, one of them being the potential in energy savings when heating your home. Carpeting can insulate a home up to 10 times more than hardwood flooring.

R-value is a term used to describe the thermal resistance rating of carpet, or in plain and simple terms the insulating value. R-value is calculated not from the actual materials as much as from the thickness of the carpet. Most of the time the R-value is printed on the label of the product in the store. If the R-value for your carpet is not labeled or readily available it can be easily calculated by multiplying the carpetís thickness in inches but 2.6. the higher the R-value, the more insulating power it provides to the home.What is R-Value in Carpet?
The carpet padding also effects room temperature and some may say that the padding under the carpet does just as much or more insulating than the actual carpet itself.

Urethane padding has the highest R-value of all padding choices. The R-value rating is anywhere from 1.05 to 2.15 dependent upon the thickness of the pad. Urethane padding is low in density making it a lightweight padding choice and because it is not a dense product it is not ideal for high traffic areas. It is a great option for bedrooms, but you might want to keep it out of the hallway or family room.

Rubber padding has the lowest R-value of carpet padding. It rates between .31 and 1.61. Rubber padding is pretty dense and is still a great option for those high traffic areas like the hallway. Rubber paddings are best when they donít contain fillers.

Fiber padding has an R-value in the middle measuring in at .97 to 1.94, not too much higher than rubber padding. Fiber padding is constructed of hair or plant fibers and is also high density making it another option for a high traffic area. Being in the middle with its R-value, fiber padding, provides a pretty good warming and cooling property along with decent carpet support.

When you add both the R-value of the carpet and the pad together you will get the complete R-value and insulation value added to your home. Some carpet and padding combinations can measure an R-value of over 2.0. The combination of carpet and padding together form to create a strong barrier against heat and cool air loss depending upon the season.

If you are looking to save money on heating and even cooling bills in your home check out the R-value of carpet and padding options that will work for your home and lifestyle.
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Old 09-24-2017, 08:43 AM   #15
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Quote:
Originally Posted by Marceps View Post
Hardwood planks will be screwed to steel floor with sheet metal metal screws. I think.
I would be concerned with the screws getting a good lasting "bite" on the sheet metal. You will basically get 1-2 threads of the screw in the sheet metal base. Where with a wood subfloor you get 10-20 threads in the wood base.

Also part of the job of the subfloor is to absorb pressure and weight. I would worry about the planks flexing and the screws coming loose and causing problems.
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