BULDING MATERIALS

Presentation by

Bamboo is a

type of grass (it is not a kind of

wood). It grows

much faster.

INTRODUCTION

TYPES OF BAMBOOS

Monopodial

This kind of bamboos are thin and long

Sympodial This kind of bamboos are Short and thick

Climbing This kind of bamboos are Irregular

PROPERTIES

• renewable

• versatile

resource,

• high strength

• low weight,

• easily worked

using simple

tools.

LOCATION It is mainly found in

tropical and sub-

tropical regions.

CONSTRUCTION OF

ROOFS

using BAMBOOS

Advantage's of bamboo roofing

Cooler Interior

More Cladding

Conventional apex roofs

Water Proof

Additional Prevention from Water

Bamboo trussers are first coated with 2-3layers of Rubber tree oil.

The roof of a

building is most

important

component - this is

what defines a

construction as a

shelter.

roof? ?

A roof must be,

strong enough to resist

the considerable forces generated by

wind and roof coverings.

In this respect bamboo is ideal

as a roofing material - it is strong,

resilient and light-weight.

Structure

The bamboo structure of a roof can

comprise “cut’

components - purlins, rafters and laths or

battens, or

triangulated (trussed) assemblies.

Bamboo, in a variety

of forms, is also used as a roof covering

and for

ceilings.

Layering of the trussers

The under structure consisting of a woven bamboo net.

Over that net is the first layer of interlocking split bamboo stems/shingles.

Then comes a second layer of structural bamboo on the outer roof is fixed.

Split Bamboo is installed on that outer roof

Next is special thick and viscous rubber installation.

Finally split bamboo is overlaid. This is further treated with rubber oil to

protect and insulate the bamboo from the rain.

Traditional roof construction:

The simplest form of roof comprises a

bamboo ridge purlin and eaves beams,

supported on the perimeter posts. Halved

culms are then laid convex side down, edge

to edge, spanning from the ridge to the

eaves. A second layer, convex side up, is

then laid to cover the joints. The maximum

overall span using this method is about 3

Metres.

A variation on this is the use of whole culms,

suitably spaced to accept battens for tiles or

thatch (see Roof

covering). To extend the span, a central post

can be used. Beyond this, the options are

almost infinite. Efficient jointing of

components is a key consideration.

Trusses: Trusses offer a number of advantages

over traditional forms of construction,

including more economic and efficient use of

materials, the ability to span larger

distances, the use of shorter components

(counteracting effects of bow, crook and

taper) and the use of prefabrication.

Advantages of roofs using bamboos

If you are looking for a green solution for

your home roofing, you can use a bamboo

roof. Bamboo grows abundantly in nature.

It is a renewable resource that can be used

for several crafts, furniture and even a

home construction project. You can use a

bamboo roof on your home or outdoor

recreational facility. A bamboo roof is not

only environmentally friendly, but is also

cheap and very appealing to view.