Lead Flat Roofs

Copper with standing seams covered some of the more notable early american roofs including that of christ church 1727 1744 in philadelphia.

Lead flat roofs.

Flat roofs tend to be sensitive to human traffic. These are often expensive options and vulnerable to being stolen and sold as scrap metal. Flat seamed copper was used on many domes and cupolas. Flat roof prices start from 40 per m2 for felt roofs.

Although there is a good argument to use it l ead flashing places extra stress on the gutters and roofline of any house. Lead welded or folded seamed tin folded soldered or folded seamed or copper. Lead should be laid in bays sections with joints between the bays formed over a wooden roll. Lead flashing is not a diy product as it takes years of experience to perfect installing a full lead roof.

On a low pitch roof where the lead isn t free to move it is more likely to buckle on expansion or stretch as it contracts. Joists flat lead roofs should be laid with a slight fall. Metals are also used for flat roofs. Lead can become damaged through.

Lead as well as copper covered roof surfaces where wood tile or slate shingles were inappropriate because of the roof s pitch or shape. For fibreglass expect to pay from 90 per m2 and for fire glass bay roof from 250 per square metre. To help professional installers and those who are learning the ropes of lead flashing and roofing lead calder produced the guide to good leadwork which is widely accepted in the industry as the go to for lead flashing roll and lead work. Lead bay roofs are even more expensive starting from 300 per m2.

Lead is not the lightest of roof flashing materials. Lead covered roofs typical of many churches and cathedrals. Lead sheet one of the oldest and most durable roofing materials has been known to last for over 200 years. Lead sheet has been around for centuries so there are some rules that have been developed that no good lead worker will deviate from.

Rubber roofs costs start from 80 per m2. Lead flashings john gilbert used here to make a long lasting complicated junction lead worked to cover a skylight john gilbert a good long lasting repair typical problems. Flat roof cost per square metre. When the lead rests directly onto sawn timber on a steeply pitched roof and non resinous timber has been used underlay may not be necessary.

Joints along the length should be stepped to prevent rain seeping up through capillary action lead is normally laid over. Thicker lead is used on. If the lead flashing is not installed perfectly it can widen cracks in the foundations of a home because of its density and weight. However even with the best of materials poor design often leads to failure.