Door ,window,ventilator etc frames,pannels etc

My opinion is Stone only

I f we take any Metals first  we need to deforest in order to do mining,second we need to transport the same which involves fossil fuel,and then we need to smelt using great energy ,power,coal (mining)leading to global warming

Coming to PVC, it is a by product of Fossil fuel and it has the most number of disadvantages as far as nature is concerned, it is the last thing in earth that decomposes,it affect s health as it gives out chemical gases over its period of use(I have posted Safe plastics some days back) so not contributing to green….Its the most dangerous material we use in our daily life in different styles

Wood- that’s what we are all worried about. Yes we need to conserve it and create it.so we cannot use it

That leaves us with I think only stone –a natural product ,but not without its own disadvantages.it absorbs heat,fragile for some purposes and so on

What I meant was that taking theadvantag es and disadvantages of all materials,in making of green building(since it is not sufficient that the building is green,the process of raw material and the raw material needs to contribute to green), we are left with STONE only

In Mangalore, concrete frames are used for window and door applications. Venyl doors are used in bathroom and toilet applications where water related problems weaken the door. Other doors are used by high quality card-boards where re-inforced saw dust is used for fabrication, venyls are also used rarely. Main doors which are used for entry purpose from either back or front, Teak or Jack woods are used - for security and durability reasons. Jack woods especially, would be seasoned before use since they crack or bend during change of season otherwise. For other usages, the rich look is the criteria for applications like pooja and furniture etc, where rose wood, acasia etc are used. Since Mangalore is an area where there will be a rainy season for about 6 months, green revolution in construction sense has not gained popularity.

Mandeep,

Will  vinyl be safe for windows against  thieves. 

If we have a particular interest in choosing "green" building materials, take a look at how vinyl compares environmentally to other products.

Vinyl's environmental performance starts with the raw materials used to make it - mostly common salt, a practically unlimited natural resource. Production of vinyl requires a smaller amount of non-renewable petroleum resources than many alternative materials, while using significantly less energy.

In fact, one study indicates that the use of vinyl in eight major building and construction applications saves an estimated 260 trillion BTU of energy per year - the equivalent of 44.2 million barrels of oil. Vinyl's superior durability also saves resources, since it reduces the need for frequent replacement - and disposal - of worn-out products. And when used in window profiles, vinyl can save additional energy - and money - by efficiently insulating homes and buildings.

When vinyl building products do reach the end of their useful lives - or when vinyl scrap is generated at the construction site - the material can be recycled and reused in other building products, such as drainage pipe, windows, flooring, exterior accessories and fencing, or used in other applications, like traffic cones, parking stops or retaining walls. Programs are currently in operation to recycle vinyl building products.

Basab ,

If question was not asked ,how one can answer,question and answer have their own sanctity,I also agree with u that 1st answer is best.thumbs up to it.

I think the first response is more interesting than the original question, as it opened up many areas of 'Green' building concept. I am actually trying to understand this concept of 'green' buildings. If I am not wrong, the greenest building will be one which does not alter the natural environmental balance at all. Since that is impossible to achieve, we settle for the one which disturbs the balance the least. The question is, is using Aluminium better than using wood? On the face of it, it would seem so, because use of wood leads to deforestation with it's consequent ill effects. However, if we look at mining of bauxite for making aluminium, we shall see that requires widespread deforestation for mining and release of a lot of green house gases during the smelting process for extracting Aluminium. So, are we really saving the environment by using Aluminium? Furthermore, what is the greener alternative to wood for the doors? Aluminium framed glazed doors are not an acceptable solution for residential doors. Any ideas?