The Specification Of Roof And Wall Cladding

Performance requirements

Performance requirements

The specification of roof and wall cladding has implications well beyond the aesthetics and weathertightness of the buildings performance, from its construction right through to it's eventual demolition and disposal. Sufficient care must be taken when specifying the cladding to insure the fitness for purpose of the whole building is not compromised.

Specifying profiled metal cladding

The following factors should be taken into consideration when specifying profiled metal cladding systems:

* Weathertightness

* Strength and rigidity

* Thermal insulation

* Control of thermal movement

* Sound insulation

* Fire resistance

* Appearance

* Durability

* Cost

* Daylighting

* External attachments

* Lightning protection

* Design detailing

* Maintenance, remedial work and renewal.

* Control of air leakage

Weathertightness

The primary function of the cladding is to provide a weathertight building envelope, suitable for the intended use of the building. With this in mind the specifier must give careful consideration to the design of the building, location of the building, design and construction of side/end laps and orientation to the external climate.

In general roofs are at a greater risk of leakage than walls and the risk increases as roof pitch decreases.

Strength and rigidity

The profiled cladding system serves as an important structural element. They are required to carry externally applied loads, such as snow and wind loading without deflecting excessively or compromising the other performance requirements. In addition, the cladding is often required to provide restraint to the purlins and side rails.

Appearance

Roof and wall cladding choice will have a significant impact on the appearance of a building. The following factors are particularly important:

Profile shape

The shape of the profile will have an impact on the appearance due to its effect on the perceived colour and texture of the cladding (caused by the reflection of the light).

Colour

The profiled cladding sheet is available in a wide range of pre-finsihed colours and textures.

Fasteners

The overall appearance of the building can be affected by the choice of fasteners especially on wall cladding or steeply pitched roofs. Cladding specifiers should, therefore, give careful consideration to the size, shape, colour and locations of the fastener and washers.

by: Gareth Hoyle

POST COMMENT

The Trainee Most Excellent Fundamentals When Understanding As Well As Competing Several Popular Boar Borderline and labile hypertension Introduction to the stop valve and gate valve The Difference Between Fitted Hats And Adjustable Caps Intro To Iron And Steelmaking: What Is Msds And How Can Such Sophisticated Process Be Simplified? Features of a Coil Nail Gun and Its Uses Planting Tomato Seeds - How To Grow Tomatoes From Seed and Produce Strong Seedlings That Survive! Boost Your Seizure and Cognitive Testing Coding Wearing And Giving Green Varieties Of Sir Walter And Their Benefits Bereavement: Coping With Loss And Grief A Amateur Effective Fundamentals When Understanding As Well As Competing Quite A Few Famous Board Ga