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Abstract
The focus of this paper is to investigate the system performance of standard asphalt shingles and to evaluate the impact of installing nonbreathable underlayments between the shingle layer and the roof deck. The research performed indicates that nonbreathable underlayments may be installed below asphalt shingle roofing materials with comparable or better moisture performance.
The focus of this paper is to investigate the system performance of standard asphalt shingles and to evaluate the impact of installing nonbreathable underlayments between the shingle layer and the roof deck. The research performed indicates that nonbreathable underlayments may be installed below asphalt shingle roofing materials with comparable or better moisture performance.
Date
6/2011
6/2011
Author(s)
Joseph Lstiburek; Achilles Karagiozis; Paul Gassman
Joseph Lstiburek; Achilles Karagiozis; Paul Gassman
Page(s)
1-9
1-9
Source
Owens Corning
Owens Corning
Keyword(s)
underlayment; ventilated; attics; vapor; permeability; asphalt; shingle; performance
underlayment; ventilated; attics; vapor; permeability; asphalt; shingle; performance