Basement renovation 2

Learn how to insulate your basement floor and how do build a sub floor. For the full length video log on www.soyourerenovating.com

Category:

Howto & Style

Tags:

• Basement
• renovation

[vedder316]

I am planning on using this for a small foyer. Is there any was to do two layers of insulation paneling? Or would I be better off framing and using the fiberglass rolls?

[soyourerenovating]

@vedder316 What do you mean by a small foyer?

Yes you can use two layers of insulating panels. You can also go for thicker boards which is a better option. Now take into consideration that polysyrene panels resist humidity Fiberglas batts don't.

[dluuc]

Looks like an advertisement. Just a waste of money.

[soyourerenovating]

@dluuc

Wrong. Basements count for 30% of your home 

energy efficiency. Rurthermore if your basement is not properly insulated

your house will always be cold and humid. As for the material used it is expanded polystyrene panel. Go for the brand you like but please .....insulate, save energy, save the planet!

[d1incharge]

why don't you dumb canadians insulate before pouring concrete? Just use a good carpet pad?, This looks dumb, and will take over 2" off of your ceiling height, as if basements arent short enough. Just dumb. 

[soyourerenovating]

@d1incharge

Unfortunately there are a lot of houses out there that were built without any insulation underneath the slab and this is the solution. Any other Idea!!!

[jimmyjones001]

@d1incharge All i have to say is wow. You don't know shit.

[Salmiery]

So, I will be finishing a basement soon that does need a dehumidifier in it, will this thwart mold from growing into the framework and work as a seal between the framing and the concrete?

[drsmith33]

@d1incharge Although I Iike the foam board for the walls behind the studs, for radiant temperature transfer control, I have to agree that insulating the floor is kinda silly. The floors in my house are always around 55 - 60 degrees F. Not too bad in the winter, but adds a nice cooling effect in the summer. Not worth spending the money or loosinig the floor to ceiling height.

[HomeEnergyNow]

@soyourerenovating You should maybe look into getting some type of energy license, or practice doing Manual J's. If you look at an energy pie chart for your home, occupant lifestyle and HVAC efficiency are the biggest slices. The smaller slices of the pie are insulation, infiltration, design. Insulation itself may be less than 30% of the pie depending on the house, believing the basement insulation alone is 30% is plain ludacris.

[HomeEnergyNow]

@soyourerenovating I think a good carpet pad will actually produce a better return on investment than this method. When you have rediculous costs, like plywood floor, all the foam, you have to have rediculous savings to justify it, and with a basement floor, when I plug the numbers into my software, there is not that much to save. Adding ceiling insulation, sealing the house to .35ACH, higher efficiency heaters will all trump the money invested into insulating basement floors. Poor priority.

[nathan4288]

If you put up rigid foam insulation in your basement because you have bad moisture problems, all you're going to do is trap the water between the wall and the insulation. The best thing you can do is put a good product on the outside of your foundation. Hydroseal is a good product to put on when you're building your foundation. if you try to use it after the dirt has been backfilled you'll need to make sure you clean your wall really well so that the membrane will stick evenly along the wall.

[d1incharge]

@donsjuand The only thing hydrostatic pressure would change is flow, not the fact that it leaks. Weather it be .003 psi or 3000psi, if it is greater than the interior and has a path, it will leak. You don't seal interior of concrete, if you really have to, you don't do it with foamboard, you do it with a coating. Adding the foam, forces you to add plywood, and fasteners, taking the price of the floor insulation far greater than any energy changes that come from R-8 on your basement floor.

[donsjuand]

@d1incharge The hydrostatic pressure from a basement filled with water and that caused by the soil around the foundation could be very different, so let's talk about preventing water from leaking through the basement rather than insulating; Mike Holmes handled the insulation part already. For waterproofing, you talk waterproofing; foundation waterproof coatings on the exterior and possibly interior as well as an example. Apples are apples, they don't make oranges.

[d1incharge]

@donsjuand Ever owned a swimming pool? Anybody that thinks foamboard and tape and expanding foam are going to seal anything are out of their mind. Just imagine that basement as a pool, do you really think it would hold water? Hell no, this holmes guy is a home depot and lowes saleman/ mooron that couldn't make money at const. so had to bend over for hollywood.

[d1incharge]

@vedder316 Use whatever brings you the most R-value for your money. Rember, foam will make your wall fatter, and if you try to install a lap siding over foam board, it will look like shit because it compresses and will make for a wavy looking siding job.