1. Samuel Isaac Ruibal Rosón
Aixa Fernández Fernández
Laura Fresco Magadán
Insulators and metals

2. It is produced by
matting, condensing
and pressing woolen
fibres.
Some types of felt are
very soft, some are
tough enough to form
construction materials.
Felt/Fieltro

3. Building uses
It is used for
waterproofing roofs
to prevent ingress of
moisture, and it has
a lot of uses too, but
not for buildings.

4. Steel/Acero
Steel is an ferrous metal that has carbon and iron.
The steel is the most popular alloy. It catches a
percentage between 0.2 and 0.3 of carbon and
iron.

5. Building applications.
The steel is used in structures for different
systems of construction from a group of
constructive techniques and vanguard materials.

6. Buildings with steel. The Eiffel Tower is
one of the most
important buildings
with steel. It is in
Paris (France) And
it's one of the most
important buildings
of the world too.

7. Hope you like the presentation,
thanks for your attention.