초록 ▼

A protective barrier laminate underlayment used to cover the surface of a structure, such as a house, just beneath the outermost, weather bearing layer. The underlayment has an adhesive layer on its lower side for securing the underlayment to the roof and a pattern of adhesive areas on its upper sid

A protective barrier laminate underlayment used to cover the surface of a structure, such as a house, just beneath the outermost, weather bearing layer. The underlayment has an adhesive layer on its lower side for securing the underlayment to the roof and a pattern of adhesive areas on its upper side for allowing a construction worker to walk on the underlayment without slipping. The upper adhesive layer also prevents tools and other objects such as stacks of shingles from sliding off of the roof during construction.

대표청구항 ▼

1. An underlayment for use in providing a barrier between the outer surface of a structure and a layer of exterior finish material, with the underlayment positioned adjacent the outer surface of the structure and the exterior finish material positioned thereover, the underlayment comprising:a flexib

1. An underlayment for use in providing a barrier between the outer surface of a structure and a layer of exterior finish material, with the underlayment positioned adjacent the outer surface of the structure and the exterior finish material positioned thereover, the underlayment comprising:a flexible base layer having upper and lower surfaces; an upper adhesive layer on said upper surface of said base layer; and, a lower adhesive layer on said lower surface of said base layer; wherein said lower adhesive layer comprises a single contiguous surface area and said upper adhesive layer comprises a plurality of spaced apart adhesive areas.