7 votes

Would it be possible to recycle all plastic into bricks and use them for building or insulation?

It's definitely possible to recycle plastic and create LEGO-like building blocks. In fact several houses have already been built this way! In 2010 a Colombian architect called Oscar Mendez had the ...
  • 14.3k
7 votes

Would it be possible to recycle all plastic into bricks and use them for building or insulation?

At present the plastic waste stream can be diverted into multi-color goo mixed with wood chips and be extruded into synthetic fence posts. Ugly as sin, but better than nothing, and I think that for ...
5 votes

Choice between Expanded or Extruded Polystyrene Insulation Boards

This article describes the difference: EPS is formed as beads (as used in cushions) then heated and pressed together XPS is formed as a sheet or whatever final shape is desired. So EPS will break up ...
  • 3,785
5 votes
Accepted

What is the most economical and convenient inner insulation for winters?

Insulation alone does not make for a comfortable building. I built a sleepout using coolstore panels (0.6mm steel skin with 75mm eps core). That is nearly airtight and very well insulated. But it has ...
  • 3,785
4 votes

Is it possible to use sand for heat insulation at walls?

Even though rock is a poor heat conductor for example in geothermal wells that slowly become cooler over time as heat is extracted, you cannot use sand as a general purpose heat insulator in houses. ...
  • 3,992
4 votes

Does insulating homes make sense as a carbon footprint reduction strategy if no thermostats are installed?

It's true that if you feed a constant heating power to a building, and insulate it better, it's still constant power so same energy consumption. The insulation in such a case would just increase ...
  • 3,992
4 votes

Does insulating homes make sense as a carbon footprint reduction strategy if no thermostats are installed?

Not all homes, everywhere are insulated. Insulation also is relevant in hot climates to keep homes cool. Installing insulation is usually one of the first steps to reduce energy usage for heating or ...
  • 3,362
3 votes

Insulating against unwanted conductive heat

When you've got very little space to work with, as is often the case when insulating floors, it can be worth looking at more expensive insulation that has a higher insulation value. Yes, reducing ...
  • 14.7k
3 votes

Safe weather tape for insulating windows

California is very proactive about requiring warning labels on chemicals that are possibly a problem for human health. Depending on your own judgement of the information below, I think you could just ...
3 votes
Accepted

Are building certificates under EU Directive 2002/91/EC, such as EPC, Energieausweis, DPE, directly comparable between EU countries?

No. The letter rankings cannot be compared between nations in the EU, as each nation has a different number of grades (or no grades at all). From "A comparative analysis of the energy performance ...
  • 11.5k
2 votes

MVHR no longer the ventilation of choice in some Nordic countries?

I would answer this as a comment, but comments don't accept multiple paragraphs. On the face of it this is a bad idea. Better to pull air OUT of the house, and let it sneak in where it can. ...
2 votes

Aerogel as home insulation?

There are already aerogels used in residents that are blankets and much more resilient than other legacy products available. They roll out easily and have none of the issues as fiberglass and other ...
  • 21
2 votes
Accepted

Calculating U values - Am I doing it correctly?

You are right about the complexity of the calculations, and also about the very wide tolerances. Normally those are done from CAD drawings but those contain a lot of assumptions (some more complex ...
  • 3,785
2 votes

Does insulating homes make sense as a carbon footprint reduction strategy if no thermostats are installed?

Does insulating homes make sense as a carbon footprint reduction strategy if no thermostats are installed? Insulating homes purely as a strategy for reducing their carbon footprint makes sense only ...
  • 61
2 votes

What is the best way to insulate block walls?

Sand could be an acceptable material for heat storage but still not as good as water. Sand has heat capacity of 0.83 kJ/kgK, but with density of 1600 kg/m3. Water has heat capacity of 4.19 kJ/kgK, but ...
  • 3,992
2 votes

Solutions to increase roof insulation with raised tie trusses

In a similar situation; I cut one inch thick foil faced foam board to fit snuggly between between the joists. I left one inch space between the foam board and roof sheathing for air circulation up ...
2 votes
Accepted

Meta-campaigns for sustainable building management?

There are several active organizations which provide guidelines, ratings, and certification of sustainable buildings, focusing variously on energy, water, waste, and embodied carbon. Several standards ...
  • 11.5k
2 votes
Accepted

Can window films be fully removed from a window?

Window film can be removed, but it takes some effort. The film needs to be softened with ammonia, heated with a blow dryer & carefully peeled from the one of the corners. A razor blade could be ...
  • 3,362
1 vote

How effective are shrink plastic insulation kits for residential windows?

They will help . But a word of caution ,water will be running off your window sills if you put them on the inside of the windows. They are not attractive but neater when on the outside. On the inside ...
1 vote
Accepted

Can I insulate my refrigerator to improve efficiency?

I think the greatest efficiency improvement can be obtained by cleaning the condenser coils on the bottom and/back . In a home unit the coils,especially on the bottom collect a lot of lint , pet hair ,...
1 vote
Accepted

Should I close vents to unused rooms?

No, closing the air vents will increase your energy bill. The added pressure from closing a vent can cause air leaks in your system, causing long-term and unnecessary energy waste. The heater or air ...
1 vote

Insulating against unwanted conductive heat

If you do a find (control-f) for "0.00" on this web page, http://www.engineeringtoolbox.com/thermal-conductivity-d_429.html, you will find that gasses have the lowest thermal conductivity. If you do a ...
1 vote

Repurposing polystyrene packaging material as ceiling insulation; safety and techniques

You are track of a useful idea here, but the ceiling space is not the place to use it. I have actually asked our local waste management municipality if it's realistic to pull a stream of waste ...
1 vote

Which Loft Insulation Type is best for the top floor of a three story house?

Blown or batts. See HomeDepot for a comparison. Look at R-Value and height and depth. Also, both fiberglass and cellulose can iritate your lungs. So wear a respirator. Also check out the HomeDepot ...
1 vote

What's the optimal glass separation for secondary glazing?

1/4 to 3/8 inch. Smaller spaces than this means fewer collision between gas molecules so heat transfers faster. Larger spaces than this allow convection cells to form. For residential use, lean ...
1 vote

Would it be possible to recycle all plastic into bricks and use them for building or insulation?

There is a man in Cameroon who has been melting plastic bags and molding them into paving stones. He has been doing this for 15 years. He adds sand to the melted plastic. See the full story at: ...
1 vote

Aerogel as home insulation?

If cost was not an issue and you were simply doing it to remove dust then yes cost aside this particular panel although expensive http://www.buyaerogel.com/product/airloy-x103-large-panels/ The H ...
1 vote

Sheep wool as insulation?

I use sheep wool to insulate my little cottage and it works great, it might seem you need a thicker layer though - as long as the beams can hold it, I will just add more wool on top. I use wool from ...
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Only top scored, non community-wiki answers of a minimum length are eligible