A 30 sq min 1 5 lb to 4 lb lead or 16 oz copper flashing adhered onto finished roof with m300 rubrmastic.
Ventilated lead roof details.
Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley.
For each of these areas there are numerous products to suit different applications and construction details.
To provide ventilation opening points can usually be provided on the following areas of a pitched roof.
With the introduction of vapour permeable plastics underlays the need to create ventilated voids above inclined insulation and the requirement to ventilate cold roof lofts may be reduced.
Lead sheet is a soft and malleable metal which means it s an excellent roofing material because it can be formed and shaped to suit any detail.
Eaves soffits and fascias.
One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.
Fd09 roof top chimney pipe detail fd10 roof top plumbing vent pipe detail fd11 sheet metal pipe enclosure detail fd12 roof top pipe roller support detail.
For guidance on the amount of ventilation required reference should be made to british standards 5250 and 6229.
The enclosed void of a warm pitched roof does not require to be ventilated.
Airtrak is a proprietary range of ventilators designed specifically for the ventilation of roof voids.
Types of roof and ventilation 50 ventilation details 51 finish and quality of work 52 sales and distribution centres 53.
Airtrak assists specifiers builders and specialist contractors in helping them to meet the requirements of the building regulations in relation to the important issue of roof void ventilation and the control of condensation.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
Associated lead mills ltd jamestown metals ltd unit b bingley road hoddesdon en11 0nx 2.
Where a warm roof is used a ventilation void should be provided between the insulation and the timber decking supporting the lead if there is sufficient height available.
However it is important to follow the basic principles of sizing and fixings as indicated in the rolled lead sheet manual to reduce the effects of fatigue cracking or creep.
Continuous or individual soffits.
Associated lead mills ltd jamestown metals ltd unit b bingley road hoddesdon en11 0nx 4.
Rather than actively ventilating to the outside entrapped water vapour diffuses.
