Thermal foil insulation, which way should the foil face?
Q. I have just purchased Thermal foil insulation for the loft, but the instructions are not great. I have had a loft conversion, but I want to insulate the storage area in the front of the roof.I am going to use this on the beams that seperate the room and the store, but should the foil face the plasterboard, or the store area? By the way, the insulation comes on a roll, with foil on one side and bubble wrap on the other.
Asked by views_on_offer - Mon Jan 7 10:19:26 2008 - - 5 Answers - 0 Comments

A. The foil should face the warm side of the wall or floor, otherwise it will trap condensation.
Answered by big_mustache - Mon Jan 7 10:58:48 2008

Can you use regular thermal insulation in interior walls to help block sound transfer?
Q. Looking for cheap and somewhat effective ways to provide sound insulation from room to room in renovation... thanks.
Asked by jack d - Mon Sep 7 17:10:50 2009 - - 1 Answers - 0 Comments

A. Without removing the wall on one side, you could have insulation blown into the walls from the attic. But if the walls are load bearing walls, the insulation will not go to the bottom because of the cross studs. It's major now and would have been easy when the house was built. I have the same problem.
Answered by Robert W - Mon Sep 7 17:22:28 2009

Suggest thermal insulation material for rcc roof that can be put during water proofing of roof?
Q. the best way to thermal insulate and water proofing of rcc slabs economical, may be some poly urethane material or whatever but should be very effective and light weight.
Asked by umesh v - Sat May 26 08:52:59 2007 - - 2 Answers - 0 Comments

A. Porosil a specially graded Light Weight Insulating Aggregate for loose fill insulation in Cavity Wall and over Suspended/False Ceiling. # 100% inorganic and Asbestos free. It will not rot, emit odours or attract vermin. # Light in weight and easy to handle. # POROSIL is the only insulating material which is Non-toxic and non-flammable at the time of fire. # Reduces unwanted heat flow making living comfortable. # Reduces the Air Conditioning Power Consumption upto 20 to 30%
Answered by IndianaHoosier - Wed May 30 07:53:27 2007

is bubble wrap good for thermal insulation?
Q. I'm on abit of a budget and i have loads. What other alternatives should i consider? I'm looking to insulate a large container. thanks!
Asked by Andre - Tue Feb 12 16:39:43 2008 - - 6 Answers - 0 Comments

A. I've used bubble wrap bags to keep drinks cold when I go hiking or biking. As someone pointed out, the web between the bubbles doesn't insulate as well, but if you put two sheets bubble-to-bubbles, it should improve the air-trapping enough to do a decent job of insulating. Assuming that you don't need a really high R-rated insulation.
Answered by HyperDog - Tue Feb 12 17:03:35 2008

What material is the exact opposite of thermal insulation (such as Styrofoam for thermal insulation) ?
Q. Okay, so Styrofoam helps keep your drinks warmer for longer, but what type of material that we can easily access is used to cool your drink faster and ones that have no effect on the temperature change of your liquid such as tea or coffee?
Asked by phoenix. - Sun Jan 24 22:43:26 2010 - - 3 Answers - 0 Comments

A. A thermal conductor would be the opposite. Just like with electricity, there are insulators and conductors. Thermal insulators and conductors are usually the same as electrical insulators and conductors. For example, metals are great thermal conductors. Also, a moving fluid (including gases) over a material will increase the heat transfer from a surface (called convection). So a thin metal coffee cup with a fan blowing on it would cool off very quickly compared to a Styrofoam or porcelain coffee cup.
Answered by Singularity - Sun Jan 24 22:48:30 2010

Should house electrical cables be kept out of new thermal insulation?
Q. So I'm thinking of insulating my attic. I have a slab foundation and all my electrical runs through the attic. I know certain hot features (light fixtures, transformers, etc) need a certain amount of clearance around them so they can dissipate heat - that's in the electrical code. Do runs of individual cable, runs of multiple cables (which have to be derated just because they're near other cables) or junction boxes need to be kept clear of insulation too? The derating business makes me think they need space to dissipate heat, but I can't find anything on the topic. Also, if they are on the house side of the summer heat (it easily reaches 140 up there) wouldn't that be better anyway?
Asked by Robert G - Sat Jan 20 13:34:41 2007 - - 6 Answers - 0 Comments

A. i have to laugh occasionally, when i think about how the NEC (National Electrical Code) has gotten folks so scared..Article 310 has always stated the ampacities of wires...#12 guage copper, according to Code, can handle 30 amps of current. (Article 310-16) although it stipulates that #12 will be attached to no more than a 20 amp breaker or fuse. Think of your average bedroom in a house. 6 to 8 receptacles. per. room..max current load...1 clock radio...1 lamp. 1 television...potentially 5 amps on a set of wires meant to carry at least 30...Unless you have a factory in your house, with the continuous load factor figured...no more than 80% load per circuit breaker...don't worry about it...your house is never gonna get hot enough, to affect… [cont.]
Answered by backyard_tire_biter - Sat Jan 20 23:35:17 2007

where a cwsc is located in the roof space of a dwelling and the space beneath it contains thermal insulation?
Q. what action should a plumber take???
Asked by Lee - Wed Jul 2 14:47:14 2008 - - 1 Answers - 0 Comments

A. struggling to understand your question! are you talking about a storage tank? what is the problem with the insulation? if it is in the way move it but insulation under a tank is not a problem the tank will need to be insulated any way!
Answered by MICHAEL K - Wed Jul 2 15:30:28 2008

who know about the thermal insulation technology materials and ways to do in the buildings?
Q. old and new ways?
Asked by ahmad - Thu Nov 19 17:02:27 2009 - - 1 Answers - 0 Comments

Does any one can help me to find great site about house (Thermal mass,Sustainability,insul ation.....)thanks?
Q. Does any one can help me to find great site about house (Thermal mass,Sustainability,insul ation...)thanks
Asked by MREZA_dj20 - Sat Mar 22 17:52:54 2008 - - 1 Answers - 0 Comments

A. Check these links.
Answered by a_jolly_swagman - Sat Mar 22 19:03:44 2008

should thermal insulation ever be applied directly to the underside of a roof top?
Q. should thermal insulation ever be applied directly to the underside of a roof top?
Asked by Tara - Tue Mar 24 19:02:18 2009 - - 3 Answers - 0 Comments

A. Should it be done, No. Thermal Insulation is put direftly above the ceiling. Not on the actually roof top. The reason being, that even though both methods will trap in heat, With the insulation on the arches of the roof, it still allowing heat into the Attic, Or roof space. This means that the top of the roof will infact be the warmest part of the house, and lot of heat will be lost. from the main rooms of the house.
Answered by BigDave=] - Tue Mar 24 19:14:36 2009

What is household thermal insulation?
Q. Why do we use it and how does it work?
Asked by MooT - Wed Nov 4 01:56:32 2009 - - 2 Answers - 0 Comments

A. Thermal insulation is basically a barrier between the environment inside your house, and the environment outside your house... it essentially regulates the conditions between the interior and exterior of your home... It is designed to control problems like hot or cold bleeding from, or into, your dwelling, condensation, and the development of mold or bacteria that results moisture from improper thermal insulation... There are many different kinds... the best suited for your home all depends on the environment that your home exists in and the materials that your home was built with... Talk to a professional... Home Depot DIY just doesn`t cut it when it comes to such home issues!! Cheers! G.
Answered by Frisky - Wed Nov 4 02:07:47 2009

searching for thermal insulation for molding machine platens?
Q. searching for thermal insulation for molding machine platens?
Asked by Jithesh PTK - Sat Dec 26 05:17:27 2009 - - 2 Answers - 0 Comments

A. In general Mould will have water cooling. I think your problem is handling of the temperature on the platens you can use any commercial Insulation. Insulation again dependant on your temperatures and the surface you wish to protect. Please check in the for insulation material you can choose from them. It is not complected.
Answered by Thermopads Maintnance - Mon Dec 28 01:46:14 2009

thermal conductivity insulation pleaaaase help?
Q. show that the minimum thickness of insulation required to prevent heat loss from a steel cylinder of radius ri at temperature ti ragged with an insulation of outer radius r0 is k/h0. here, k is the thermal conductivity of the insulator, h0 is the outter heat transfer coefficient with respect to the ambient atmosphere of the temperature Tb. assume that the steel cylinder offers no resistance.
Asked by maryam - Fri Aug 29 08:15:57 2008 - - 1 Answers - 0 Comments

A. Read your lecture notes/textbook. Getting other people to do your homework will do you absolutely no good in the long run. If you are unable or simply can't be bothered to keep on top of the subject, should you be attempting it in the first place?
Answered by Pete WG - Fri Aug 29 10:04:02 2008

Any Thermal insulation which is environmental friendly?
Q. Any Thermal insulation which is environmental friendly?
Asked by Jitendra M - Sat Jan 13 05:04:16 2007 - - 3 Answers - 0 Comments

A. I'm a volunteer with Habitat for Humanity. We recently completed a project for two homes in which the insulation used was recycled cotton. It was supplied in eight foot sections in batts the thickness and width of the cells in the wall. It was fairly dense and I doubt that it would settle much over time. As I recall, it had the same R rating as equivalent fiberglass insulation. I suppose you would say that this insulation is environmentally friendly, in that, being made of cotton, it would decompose if any was released to the outside. I'm not sure what fire retardant chemical was used, but I suspect it was also eco-friendly. Just an interesting note is that, while we were installing the insulation, lint was everywhere. We had to… [cont.]
Answered by Tech Dude - Sat Jan 13 11:57:50 2007

thermal insulation grants?
Q. thermal insulation grants?
Asked by DEBS - Tue Mar 20 03:13:43 2007 - - 1 Answers - 0 Comments

A. Yes, most councils will give you a grant, they don't advertise it! Speak to the environmental department I think it is, if not they should be able to help you. (or have a look on their web site, they should have one) I had my walls insulated and extra lagging in the loft and the tanks etc. They will pay a percentage, you have to use a company that they will put the work through, few forms to fill in, and send off, but does help out!
Answered by DEBBIE A - Tue Mar 20 03:48:50 2007

Thermal Insulation Help please??
Q. 1) It is required by our local building code to have an R value of 10 for exterior walls, I am using Glass fiber insulation on the masnary block but my columns and beams are not insulated, what s the best way to insulate beams using glass fiber without affectation the look of the Facade? 2) What can I use glass fiber insulation for other in partition system, HVAC ducting, and other acoustical uses. I am looking for some new idea for in order to push my business forward?
Asked by Houmam K - Sun Jan 20 08:26:15 2008 - - 1 Answers - 0 Comments

A. spray poly-iso
Answered by Jeffrey J - Sun Jan 20 08:42:33 2008

Where do you find the History of Thermal insulation ( Cannot be Wikipedia)?
Q. Where do you find the History of Thermal insulation ( Cannot be Wikipedia)?
Asked by Ayan (ai-en) - Tue Nov 14 10:16:53 2006 - - 2 Answers - 0 Comments

A. Try this website for information on the history of thermal insulation:
Answered by suctioncup83616 - Tue Nov 14 10:36:40 2006

Thermal insulation protection?
Q. There is a situation where the temperature of room is 250 degree C and they wanted to box up one machine to keep it at 70 degree C. we are going to have 40mm thick calcium silicate board with k=0.17 W/mK. Please help me whether the thickness of board would be sufficient to keep that machine 70 degree C. Could you also guide me on how to calculate it??? Thanks a lot and hope some one can help me with this queries asap ..thanks again all Thanks Spike for your help... i'm not sure about the rate of heat rejection though, the room is an industrial room at factory. usually how much is the rate???are there any reference or website i can refer to
Asked by violet7 - Wed Jul 9 21:55:17 2008 - - 2 Answers - 0 Comments

A. I agree with Spike. You must specify the heat rejection Fourier's Law of Heat conduction Q = - k * A * dT/dx Here, Q = Heat load k = Thermal Conductivity (0.17 W/mK in your case) A = Surface area of the board (We can assume 1 m^2 as the basis) dT = Temperature gradient ( 250 - 70 = 180 C) dx = Thickness of board (0.04 m) The negative sign is to indicate the direction of heat flow, it is irrelevant for heat load calculations. Remember that thermal conductivity usually varies with temperature. Substituting Q = 0.17 * 1 * 180/0.04 = 765 W/m^2 Now, if the machine at 70 C is rejecting heat at a rate of 765 W/m^2, then you can use 40 mm slabs for insulation. You need to find out the heat rejection rate for the machine. The above… [cont.]
Answered by Fluorine - Thu Jul 10 01:18:33 2008

thermal properties of Kingspan Insulation boards?
Q. external walls upto 3m's high:- 1MM thick Coated galvinised mild steel profile sheeting, 80mm mineral wool quilt with 100mm heavyweight block internal finish.. ok question is what part of this element would be exchanged for the insulation boards? internal part? filling or external? and more importantly, does anyone know the thermal properties for the boards? 'U' values, or its heat capacity? if you cant go that deep can you tell me why the insulation board is better than the current set up? i need good detailed answers please! im looking to find out which one is going to keep heat in! and the difference in heat loss between both set ups. and cost comparisons.. thanks for any help. if you can give mre help plz email or IM me… [cont.]
Asked by Martin Q - Mon Nov 19 12:50:55 2007 - - 2 Answers - 0 Comments

A. I agree that you should go to kingspans website to check the K value of their materials so that you can calculate the U value of the entire wall. Rockwool is a reasonable insulator, but will have no where near the resistance of a good thickness of high density foam insulation (not polystyrene). You can get both composite panels and built up systems of insulation, the built up systems tend to use rockwool. A good system is the planjja (check the spelling) system. Suggest you buy an environmental science book and learn how to calculate heat losses if you are so keen to keep the heat in! Try reading "environmental science in building, by randall mcmullan" to learn to calculate your own u values. This will teach you to analyse the… [cont.]
Answered by andrew b - Tue Nov 20 18:36:31 2007

thermal conductivity in dritherm fibreglass insulation... which is better??
Q. The dritherm fiberglass insulation I am about to use on my extension was presumed to have a value of 0.036 (W/mK) when the u-values were calculated, but has 0.035. Does the insulation improve/worsen as the figure increases/decreases? I know as the figure of the u-value decreases, it improves, but is this the same rule for the Thermal Conductivity?
Asked by soft69uk - Thu Nov 1 06:26:41 2007 - - 1 Answers - 0 Comments

A. The lower the thermal conductivity, the better the insulation. Same for U value - lower U value, better insulation. The U value says how much power is lost per square meter of surface for each degree of temperature difference. Thermal conductivity is a property of a material and is independent of the thickness of the material. All fiberglass has the same thermal conductivity (roughly). The U value is a property of a wall, window or other surface (such as your sheets of fibreglass). For a single material, it depends on the thermal conductivity and thickness of the material. It can also be calculated for composite constructions from the thermal conductivities and thicknesses of the various materials used. For windows, it can also take… [cont.]
Answered by greenshootuk - Thu Nov 1 06:32:02 2007