Lead Flat Roof Detail

It invariably can be found in a number of locations on a roof s profile and it s main function is to channel and deflect rainwater.

Lead flat roof detail.

Apply the oil before any rain and at the end of the day s work. 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. Lead detail lead is commonly is used as a means to complete and help maximise the efficiency of a roof s water sheddings qualities. Lift flashings and coat the underside of the lead for about 50mm from the edge.

Coat the lead before turning up clips around the edges. Lead sheet one of the oldest and most durable roofing materials has been known to last for over 200 years. 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. Apply the oil to all newly installed lead items large or small.

Whilst shaping some of the oldest and most beautiful architecture lead is regularly used in more modest commercial and domestic roofing too from whole roof coverings porches turrets and parapet roofing to modern roof waterproofing details like flashings valleys and gutters. One particular problem which has been the subject of increasing concern speculation and debate is the tendency for condensation on the underside of metal roofs to cause corrosion. Remember to coat between laps. Lead covered roofs typical of many churches and cathedrals.

Banding is typically used to seal soil vent pipes on single ply roofs such as fdt rhepanol pib and involves wrapping an unreinforced membrane around the pipe to a minimum height of 150mm an approved sealant is then applied to the top of the membrane. However even with the best of materials poor design often leads to failure. Typical methods include banding pitch pockets and cover flashings. One coat is all that is needed.

For roof detail the gauge of lead to be used will be dependant upon the application. Roll detail at drips and abutments 41 flat roof roll and drip intersections 42 pitched roof joints and fixings 43 pitched roof intersection with valley 44 vertical cladding joints and fixings 45 vertical cladding head finishes 46 dormer windows jambs and s ill 46 dormer windows tops jambs soffit and side cheeks 47. Also known as the built up roof bur this type of flat roof features three or more layers of waterproof material mixed in an alternating fashion with hot tar and a layer of smooth stone like gravel.