Ventilated Lead Roof Details

Associated lead mills ltd jamestown metals ltd unit b bingley road hoddesdon en11 0nx 2.

Ventilated lead roof details.

Prime top surface of. 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. 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. Types of roof and ventilation 50 ventilation details 51 finish and quality of work 52 sales and distribution centres 53.

Eaves soffits and fascias. Associated lead mills ltd jamestown metals ltd unit b bingley road hoddesdon en11 0nx 4. The enclosed void of a warm pitched roof does not require to be ventilated. Continuous or individual soffits.

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. Soffit vents are one of the most popular intake vent styles. 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. To provide ventilation opening points can usually be provided on the following areas of a pitched roof.

For each of these areas there are numerous products to suit different applications and construction details. A 30 sq min 1 5 lb to 4 lb lead or 16 oz copper flashing adhered onto finished roof with m300 rubrmastic. 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. Rather than actively ventilating to the outside entrapped water vapour diffuses.

Why rolled lead. 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. 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. 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.