What are the requirements of a roof?

A new roof (e.g. for an extension) will be required to:

• resist weather.
• resist the spread of fire from one property to another.
• be able to support loads (weights)
• provide resistance to heat loss (insulation)
• be ventilated to protect from condensation (in most cases)
• have adequate drainage.

Just so, what are the functional requirement of roof?

(a) Three functional requirements of a roof are:

• stability;
• strength;
• weather resistance or exclusion of wind, sun or rain;
• durability;
• fire resistance;
• thermal insulation;
• sound insulation;
• provide enclosure for service; facilities.

Furthermore, what are the components of a roof? Parts of a roof

• Decking (or sheathing) Usually made from 1⁄2-inch plywood, the decking closes and reinforces the roof structure and provides a nailbed for the shingles.
• Roof edge (or eaves edge) All the boards running along the edge of the roof or eaves.
• Attic.
• Saddle.
• Ridge.
• Valley.
• Underlay membrane.
• Eaves membrane.

Beside this, what are the functions of a roof?

The basic function of any roof is to offer protection from the elements for people and their possessions. Roofs can also provide insulation, retaining heat in the winter or cool air in the summer. Certain roofing materials – especially those of fibrous origin – offer strong insulation.

What are the functional requirement of wall?

Following are the functional requirements of walls in a building construction: Strength. Stability. Weather and ground moisture resistance.

Related Question Answers

What are the functional requirement of door?

The functional requirements of a door, when closed, are:

• Security, prevention of unauthorised entry.
• Privacy.
• Strength and stability.
• Resistance to weather.
• Durability and freedom from maintenance.
• Fire safety.
• Resistance to the passage of heat.
• Resistance to the passage of sound.

What is roof in civil engineering?

A roof is a structure forming the upper covering of a building or other shelter. Roofs can be constructed from a wide variety of materials and in a wide variety of shapes depending on the requirements they have to satisfy, the local climate, the availability of materials and skills, the span to be covered, and so on.

What are the functional requirement of floor?

Following are the functional requirements of floors in building:

• Strength and stability.
• Resistance to weather and ground moisture.
• Durability and free from maintenance.
• Fire resistance.
• Resistance to passage of heat.
• Resistance to passage of sound.

What is the definition of roof?

1a(1) : the cover of a building. (2) : material used for a roof : roofing. b : the roof of a dwelling conventionally designating the home itself didn't have a roof over my head they share the same roof. 2a : the highest point : summit. b : an upper limit : ceiling.

What is the basic structure of a roof?

It consists of rafters and trusses, which are beams that form the shape of the roof and support the sheathing or the next layer. Drainage features are also established during the roof structure phase. These features, like the roof's shape, layout and slope, are important because they allow water to roll off the roof.

What are the types of roof?

Here is a list of 9 different types of roofing to consider for your next re-roofing job:

• Solar tiles.
• Asphalt shingles.
• Metal roofing.
• Stone-coated steel.
• Slate.
• Rubber slate.
• Clay and concrete tiles.
• Green roofs.

What are the points on a roof called?

Ridge. The highest point of a pitched roof that receives the head of the spars (also called rafters or common rafters).

How much do roofs cost?

Shingle Roof: $2.50 to $11 per Square Foot

It depends on the size of the roof and the materials you use. A shingle roof is usually more economical, with costs ranging from an estimated $2.50 per square foot for asphalt shingles to around $11 per square foot for cedar shingles.

What are the steps to roofing a house?

10 Steps to Building a Roof

1. Tear off the old roof.
2. Install the drip edge.
3. Roll out the underlayment.
4. Cover the roof with felt paper.
5. Waterproof the valleys.
6. Apply starter shingles.
7. Install the shingles.
8. Install the flashing.

What is a roof plan?

A roof plan is a scaled drawing or diagram of a proposed roof development containing dimensions of the entire roof structure, including shape, size, design and placement of all materials, ventilation, drainage, slopes, valleys and more.

What does on the roof mean?

1 : to become very angry or upset When they realized he'd lied to them, his parents went through the roof. 2 : to rise to a very high level Sales of their new CD have gone through the roof.

Where do two roofs meet?

Ridge

What is it called where a roof meets a wall?

They're called headwalls and sidewalls. HEADWALL FLASHING. A headwall is a level junction where a roof meets a wall. This illustration shows proper flashing at a headwall condition. Headwall flashing should extend up behind the exterior wall covering and down over the roof-covering material, as you see here.

What goes under roofing shingles?

Sometimes called roofing felt underlayment, roofing tar paper, or roll roofing, this is a layer of protection installed between the roof deck and the roofing shingles.

What is the function of a wall?

The purposes of walls in buildings are to support roofs, floors and ceilings; to enclose a space as part of the building envelope along with a roof to give buildings form; and to provide shelter and security. In addition, the wall may house various types of utilities such as electrical wiring or plumbing.

What are the types of wall?

Wall types

• Wall definition.
• Buttressing wall.
• Cavity wall.
• Compartment wall.
• Curtain wall.
• Dwarf wall.
• External wall.
• Green wall.

What is meant by cavity wall?

A cavity wall is a type of wall that has a hollow center. They can be described as consisting of two "skins" separated by a hollow space (cavity). The skins typically are masonry, such as brick or cinder block. Masonry is an absorbent material that can slowly draw rainwater or even humidity into the wall.

What are the functional characteristics of a building?

A high performing building includes these characteristics:

• Sustainable design with a proper balance of aesthetics, accessibility, cost-effectiveness, safety, and security.
• Superior indoor air quality, based on the specific requirements of the space.
• Energy efficient design and performance.
• Reduced greenhouse gas emissions.

What is a load bearing wall?

A load-bearing wall or bearing wall is a wall that is an active structural element of a building, that is, it bears the weight of the elements above said wall, resting upon it by conducting its weight to a foundation structure.

What are the basic requirements of building planning?

The planning and construction of a building should be aimed at fulfilling the following requirements:

• Strength and stability.
• Dimensional stability.
• Resistance to dampness.
• Resistance to fire.
• Heat insulation.
• Sound insulation.
• Protection against termite attack.
• Durability.