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a builder using a gas blowtorch to heat and melt bituminous felt sheet to bond to a flat roof making it waterproof Stock Photo - Alamy
![a builder using a gas blowtorch to heat and melt bituminous felt sheet to bond to a flat roof making it waterproof Stock Photo - Alamy a builder using a gas blowtorch to heat and melt bituminous felt sheet to bond to a flat roof making it waterproof Stock Photo - Alamy](https://l450v.alamy.com/450v/a97tr6/a-builder-using-a-gas-blowtorch-to-heat-and-melt-bituminous-felt-sheet-a97tr6.jpg)
a builder using a gas blowtorch to heat and melt bituminous felt sheet to bond to a flat roof making it waterproof Stock Photo - Alamy
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Australia 4mm Color Mineral Surface Torch on Bituminous Asphalt Roofing Felt - China Torch on Membrane, Roofing Sheet | Made-in-China.com
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Black Bitumen Roofing Felt, Packaging Size: Roll, Use For Waterproofing Of Roof at Rs 1500/roll in Sas Nagar
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Australia 4mm Color Mineral Surface Torch on Bituminous Asphalt Roofing Felt - China Torch on Membrane, Roofing Sheet | Made-in-China.com
![The process of installing roofing material using a blowtorch. The bituminous felt melts during the installation process. Soft roof Stock Photo - Alamy The process of installing roofing material using a blowtorch. The bituminous felt melts during the installation process. Soft roof Stock Photo - Alamy](https://c8.alamy.com/comp/2H448EW/the-process-of-installing-roofing-material-using-a-blowtorch-the-bituminous-felt-melts-during-the-installation-process-soft-roof-2H448EW.jpg)