The product may be exposed for up to 60 days and may be used with asphalt shingles and most other roof coverings.
Grace triflex under steel roofing.
The grace tri flex xt is a woven synthetic water shedding underlayment that is high performance.
Grace tri flex xtreme is attached to the roof with roofing nails or.
Refer to subsequent sections for more details.
Tri flex is a mechanically attached roofing underlayment that can be applied under nearly any roofing material shingles tiles slate metal and more.
Tri flex xt is coated on both sides with a new and enhanced coating formulation made up of slip resistant polymer for exceptional foot traction.
Suitable for use under all major roof coverings grace tri flex mechanically attached underlayment can be used under shingles tiles slate metal and cedar shakes.
Tri flex 15 is a synthetic roofing underlayment coated with polypropylene on both sides and offers many benefits to traditional 15 felt.
Grace tri flex xtreme should not be used at slopes less than 2 12 provided the slope is also acceptable to the primary roof covering.
Tri flex 15 underlayment acts as a secondary watershedding material below mechanically attached roof coverings.
This proprietary resin formula is used in the walk and deckside surfaces to create a slip resistant surface.
On slopes of less than 3 12 grace tri flex xtreme should be half lapped a full 20 in.
Tri flex 15 underlayment is an engineered woven fabric coated on both sides with polypropylene.
Over the underly ing course shingle style.
It is more than 20 times stronger than 30 felt.