Weight Of 3 Layer Felt Roof System

When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.

Weight of 3 layer felt roof system.

Weight in kn m2 u n o. The products used today are a 3 layer membrane system applied with the use of a gas gun. The 3 layer felt roof system is also versatile when it comes to appearance. Fitted using a blowtorch the 3 layer felt roof system benefits from being more stable than the older methods.

16 kn m3 27 kn m3 0 022 76 kn m3 0 58 21 kn m3 b. Three layer felt system. They had a stereotypical belief they were only good enough for your shed or garage. For the third layer of a three layer roof granulated mineral surface.

Don t forget to add all roof assembly materials when calculating total roof weight. 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 weight of roofing constructions above the truss rafter may be estimated with the calculator below. They are no longer laid with hot bitumen and have stone chippings put on top.

None asphalt roll roofing 1 1 lb m ft 2. 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. 0 8 mm 25 mm. Of course how many rolls you need will depend on the size of the roof so ensure you measure correctly.

Three layer felt systems have come a long way from the early days. Anderson tecnatorch sbs torch on mineral felt capsheet is used as the final layer of the felt roofing process. These are the membrane layers of torch down roofing material from the bottom up. You can return to viewing our roofing products by clicking on the below titles.

3 layers and vapour barrier sheet aerated concrete dense aggregate lightweight on. This includes the roof deck and the supporting structure typically roof trusses and or rafters as well as the roof system itself. Melt the bitumen by heating on the underside of the membrane from a gas torch. It s available in rolls that are 8m long and 1m wide with a thickness of 4 2mm mineral or 3 8mm sand.

Typically it s applied as a 3 layer system usually consisting of a perforated underlay a 2mm underlay layer then thick 4 5mm felt. 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. Bituminous felt roofing bitumen blockboard blockwork books brass brickwork bronze. Please contact us if you have any queries by clicking here.

Use our table below to compare membrane thickness and weight for our range of flat roofing.