Rooflight Replacement
by Knowle Roofing
Many buildings require a source of natural light and therefore have rooflights
incorporated into the roof. Rooflights can be of various materials and design
such as northlight glazing, domes and GRP translucent sheets.
Defective and ageing rooflights can often be the cause of roof leaks or
insufficient light levels. Practical Roofing has many years experience
replacing all types of rooflight with up to date systems. These include single
skin and factory assembled insulated GRP rooflights (FAIRS), GRP and polycarbonate
domes and multi-wall polycarbonate glazing systems.
Rooflights become discoloured over time from exposure to ultra violet
radiation. This discolouration can be mistaken for dirt, but often attempts to
clean them has no effect as the discolouring is a result of fibres within the
GRP changing colour.
Sometimes a roof may have twin skin rooflights, an internal and external layer. Sometimes the problem may only be within the top sheet allowing us to simply replace with new or both may require replacement.
Site assembled rooflights, manufactured in both GRP and polycarbonate, are quick and easy to install. All sheets achieve the highest levels of profile accuracy and cover a range of options, including safety levels, U values and fire ratings. Single, double and triple skin rooflights are available for a huge variety of applications from canopies to warehouses and factories to retail and leisure facilities.
Insulating Rooflights
Manufactured to suit a customer’s exact specification. Delivered to site as a complete ready to install unit. A cost-effective rooflight option that can be incorporated into most new or refurbished roofs. Manufactured in both GRP and polycarbonate in formats to suit all of the commonly encountered sandwich panel roof coverings.
Modular Vault Rooflights
Comprehensive range of modular length, double skin vault rooflights available in GRP and polycarbonate. Suitable for either flat, pitched or curved roofs, Multivaults are a cost-effective range of vaulted rooflight options that are easily incorporated into new or refurbished roofs.
Solid Polycarbonate Sheet
Solid polycarbonate sheet with shatter resistance up to 200 times that
of glass, ideal for canopy glazing applications.
Roof Ventilation
Adequate ventilation in any workplace is essential for good health and
productivity. A well-designed and efficient ehaust ventilation system has many
benefits, including:
Reducing exposure to airborne hazardous substances thereby preventing
work-related illness and turnover;
Preventing the accumulation of heat in the workplace thereby preventing
heat exhaustion;
Reducing time and money spent on inspection and cleaning of raw
materials, semi-finished products and final products when dust, oil, organic
solvents and other airborne substances are kept to a minimum;
Reducing costs for electricity;
Increasing productivity when the working environment is comfortable and
well-adapted to the needs of the workers.
Use Intake Type and Exhaust Type Ventilation Fans Properly
There are two types of ventilation using electric powered fans: intake or supply type fans and exhaust ventilation type fans. The combined use of intake and exhaust can increase greatly the efficiency of ventilation