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Roof Underlayments

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Ice and Water Shield

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Metal Roofing

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Leak Barrier

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Synthetic Underlayment

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Roof Underlayments

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54 & Up3 & Up2 & Up1 & Up0

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    Top Sellers
15 432 sq. ft. Felt Roof Deck Protection
(4.5 / 281)
Model# D406-0
$32.98
/roll
#30 216 sq. ft. Felt Roof Deck Protection
(4.6 / 413)
Model# D414-0
$32.98
/roll
WeatherWatch 36 in. x 50 ft., 150 sq. ft. Mineral-Surfaced Peel and Stick Roof Leak Barrier Roll
(4.3 / 343)
Model# 0912000
$86.97
/roll
FeltBuster 1000 sq. ft. Synthetic Roofing Underlayment RollFeltBuster 1000 sq. ft. Synthetic Roofing Underlayment Roll
(4.6 / 371)
Model# 0973
$107.00
/roll
4 ft. x 250 ft. Synthetic Roofing Underlayment - Contractor Grade4 ft. x 250 ft. Synthetic Roofing Underlayment - Contractor Grade
(4.7 / 114)
Model# EBSRU04250CON
$69.97
/roll
36 in. x 50 ft. Weather-Armor SB-1 Roof Underlayment
(4.7 / 7)
Model# AP-4100-15
$64.98
48 in. x 250 ft. (1000 sq. ft.) Synthetic Roofing Underlayment
(4.6 / 233)
Model# SLG4250LWE
$59.97
216 sq. ft. Felt Roof Underlayment
(4.4 / 85)
Model# AP-0025
$34.98
Best Seller
StormGuard 200 sq. ft. Synthetic Patterned-Surface Peel and Stick Roof Leak Barrier Roll
(4.2 / 253)
Model# 0915000
$119.00
/roll
Grace Ice and Water Shield 36 in. x 75 ft. Roll Self-Adhered Roofing Underlayment (225 sq. ft.)
(4.4 / 308)
Model# 5003002
$245.78
/roll
ProArmor 1001 sq. ft. Synthetic Roof Underlayment Roll
(4.6 / 150)
Model# PROA21
$105.00
/roll
WeatherLock G (200 Sq. Ft.) Granular Self-Sealing Ice and Water Shield Leak Barrier
(4.2 / 129)
Model# AA10
$99.98
/roll