Roof Ventilation Requirements Scotland

You can calculate attic ventilation requirements by determining the square footage of your attic.

Roof ventilation requirements scotland.

There are two types of flat roof. The amount of space you devote to intake must be equal to the amount you allow for exhaust and these must be calculated according to the size of your attic and slope of your roof. It applies to both new build and refurbished roofs. Cold roofs and warm roofs.

Building regulations contain the technical requirements to protect the public interest. Swish ventilators for roof voids are covered by british board of agrément certificate no 91 2620. Take a look at the reasons behind roof ventilation the different types and if you need it. Why is there a need for roof ventilation.

A minimum 50mm free air path should be maintained between the top of the insulation and the underside of the roof decking. 3 14 ventilation 3 14 functional standard 3 14 0 introduction 3 14 1 ventilation generally 3 14 2 ventilation of dwellings 3 14 3 ventilation of conservatories 3 14 4 ventilation of areas designated for drying of washing 3 14 5 trickle ventilators 3 14 6 passive stack ventilation systems 3 14 7 conservatories and extensions built over existing windows 3 14 8 mechanical. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. The key to proper ventilation of your roof and attic is balance.

Cold roofs have the waterproof layer placed directly onto the roof deck and the insulation inside the roof just above the ceiling. As modern construction techniques continue to place more emphasis on energy conservation minimising the heat loss from buildings insulation thicknesses have increased and air tightness is constantly improving. When used in accordance with the certificate swish ventilators will satisfy the following statutory requirements. A range of options and models are available including pull cord timer humidistat remote switch and selv extra low voltage.

It is important that air movement occurs and is not impeded by any framing members of the. This guidance page gives you a broad view of the requirements for using the roof space in dwellings and if more detailed information is required it is necessary to refer to the technical handbook and the building standards scotland regulations. Select 100 is a classically styled bathroom extractor fan range designed to comply with current building regulations. In this case ventilation is required and the roof can still become wet with condensation which may cause materials to decay.