Stagger field sidelaps from base sheet sidelaps
Warning: Flintlastic Modified Bitumen application may require the use of hot asphalt and/or an open flame roofing torch. Improper application practices may cause physical injury to the applicator or damage to the property. Refer to the current CertainTeed Commercial Roof Systems Manual for further information.
Basic Application: Flintlastic APP Modified Bitumen
Prepare the substrate as described on page 10. Flintlastic APP modified bitumen must be applied using a professional roofer’s torch. Use of hand-held roofing torches is recommended and affords the most control. If multiple burner torching machines are utilized care must be taken to assure uniform heat application and to avoid overheating of the membrane.
Begin membrane application by unrolling the roll and aligning the sidelaps. Re-roll the roll halfway. Standing on the unrolled portion to prevent shifting, begin torching the exposed polyethylene side of the rolled portion. Walk forward as you torch, pushing the heated coil forward and into place with your boot.
Position and align the roll