Weight Of 3 Layer Felt Roof System

Three layer felt system.

Weight of 3 layer felt roof system.

Please contact us if you have any queries by clicking here. They are no longer laid with hot bitumen and have stone chippings put on top. The 3 layer felt roof system is also versatile when it comes to appearance. This includes the roof deck and the supporting structure typically roof trusses and or rafters as well as the roof system itself.

The weight of roofing constructions above the truss rafter may be estimated with the calculator below. Fitted using a blowtorch the 3 layer felt roof system benefits from being more stable than the older methods. You can return to viewing our roofing products by clicking on the below titles. They had a stereotypical belief they were only good enough for your shed or garage.

Second layer is a sanded underlay which is to. Felt tar and slag roofing 3 ply 4 5 lb m ft 2 22 kg m 2 felt tar and slag roofing 4 ply 4 8 lb m ft 2 23 4 kg m 2. Use our table below to compare membrane thickness and weight for our range of flat roofing. Don t forget to add all roof assembly materials when calculating total roof weight.

The type and amount of roofing felt to apply varies according to roof slope. None asphalt roll roofing 1 1 lb m ft 2. Melt the bitumen by heating on the underside of the membrane from a gas torch. Anderson tecnatorch sbs torch on mineral felt capsheet is used as the final layer of the felt roofing process.

Each of the three layers is laid in a half lap system so any joint in the roof is as far away as possible from another joint. Atlantic single ply system 17000 system 17000 plus system 5000 classic commodity systems. If the slope is greater than 4 12 which provides more water drainage from the roof use one layer of 15 felt. It s available in rolls that are 8m long and 1m wide with a thickness of 4 2mm mineral or 3 8mm sand.

Of course how many rolls you need will depend on the size of the roof so ensure you measure correctly. This type of felt roof comes on rolls and is laid with the aid of a very large blow torch that heats and melts the rear of the felt melting it onto the roof structure below. 3 layer felt roofing system expert installation of 3 layer felt roofing systems the first layer is a 3g perforated membrane felt which is loosed lay onto the primed deck. The products used today are a 3 layer membrane system applied with the use of a gas gun.

Three layer felt systems have come a long way from the early days.