I am only going to refer to primarily to asphalt shingles . PLEASE read the label on the sealant you are using . Our company has used flexible polymer rubber - based sealants rated for -40 F to 200 F that have good UV resistance by Ruscoe www.ruscoe.com that make these rubber based sealants in many colors . They are a high viscosity 1/10 gallon tubes like the BPS-HVAC 1/10 that are a permanent sealant on metal roofs and NEVER completely harden . They are compatible with asphalt shingles . Read the label on your sealant , polyurethane tripolymer sealants while excellent sealants ARE NOT COMPATIBLE WITH ASPHALT SHINGLES . Rusoe will sell direct ( 800 - 293- 8148 ) . We have thousands of attachments to asphalt shingles each year WITHOUT any flashings and never get a leak with Ruscoe and offer all our customers an insurance guarantee against damage to the roof and contents of the home . We have been installing since 1977 at our company . Ruscoe has a unique product that is inexpe nsive when you buy 12 cases or more especially of 12 tubes that will be delivered by a freight line . Gator Tom
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