For low slope applications 2 12 or 4 12 or wherever local codes require use two layers.
Versashield underlayment roofing.
The versashield floor moisture barriers and associated tape products for floors are part of gcp s premier portfolio of moisture mitigation products.
Versashield a fiberglass reinforced underlayment that helps improve the fire resistance of your roof system with ul class a rating.
Roofing underlayment or felt helps prevent unevenness in the roof sheathing from telegraphing through the shingles.
When installed in accordance with section 4 2 1 of gaf elk s esr 2053 versashield underlayment can be used over existing wood shakes or shingles as an alternative to the covering materials specified in section 1510 4 of the ibc section r907 4 of the irc or section 1513 3 of chapter 15 appendix to the ubc.
Roll self adhered roofing underlayment 225 sq.
Versashield fire resistant roof deck protection is a key part of the gaf lifetime roofing system and has even earned the prestigious good housekeeping seal see reverse.
Find gaf s specifications for versashield here.
Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and all qualifying gaf accessories.
The roof deck should be sound and level before laying the underlayment.
To that end we recently acquired versashield floor underlayment a proven easy to install solution that minimizes downtime and reduces the cost of protecting concrete slabs from moisture.
Fire resistant roofing underlayment roll 209 99 gcp applied technologies tri flex xt 48 in.
Fire resistant roofing underlayment roll model 0904000 209 99 roll 209 99 roll.
Roofing material roof type min.
Versashield is an approved alternative to 15 and 30 felt as an underlayment for asphalt shingles.
Please refer to underwriters laboratories certifications directory for actual assemblies.
Gcp applied technologies grace ice and water shield ht 36 in.
Gaf versashield 350 sq.
Versashield fire resistant roof deck protection protect your roof from moisture while improving its fire resistance with ul class a roof deck protection quality roof deck protection provides an extra layer of moisture protection between your roofing material and the roof deck.
Roofing underlayment or felt is usually required for the ul fire rating to apply since shingles are usually tested with underlayment.