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.
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.
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.
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.
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.
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.
Ridge. The highest point of a pitched roof that receives the head of the spars (also called rafters or common rafters).
Shingle Roof: $2.50 to $11 per Square FootIt 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.
10 Steps to Building a Roof
- Tear off the old roof.
- Install the drip edge.
- Roll out the underlayment.
- Cover the roof with felt paper.
- Waterproof the valleys.
- Apply starter shingles.
- Install the shingles.
- Install the flashing.
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.
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.
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.
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.
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.
Wall types
- Wall definition.
- Buttressing wall.
- Cavity wall.
- Compartment wall.
- Curtain wall.
- Dwarf wall.
- External wall.
- Green 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.
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.
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.
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.
