You mention it "reduces abrasion", is that specified somewhere? Does it allow same level of movement as rosin paper? Manufacturer of OSB in a two layer subfloor layout calls for 15lb felt (prevent squeaking). Doing 1 x 6" wood slats as 1st subfloor layer, then underlayment on top of the 1st subfloor layer (15 lb felt, or equivalent, presumably silicon vapor shield, aka SVS), then a 1 1/8" OSB subfloor layer, which we xxxx down through the underlayment with 1 3/4 inch decking screws. a) Do we staple/nail down silicon vapor shield or loose lay? Maybe underlayment seal tape to cover seams? Or double sided tape to secure to the floor/prevent it from moving as the OSB 4' x 8' sheet is placed on top of it and screwed down to 1st layer subfloor? All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll Hardwood Flooring Underlayment

Question

You mention it "reduces abrasion", is that specified somewhere? Does it allow same level of movement as rosin paper? Manufacturer of OSB in a two layer subfloor layout calls for 15lb felt (prevent squeaking). Doing 1 x 6" wood slats as 1st subfloor layer, then underlayment on top of the 1st subfloor layer (15 lb felt, or equivalent, presumably silicon vapor shield, aka SVS), then a 1 1/8" OSB subfloor layer, which we xxxx down through the underlayment with 1 3/4 inch decking screws. a) Do we staple/nail down silicon vapor shield or loose lay? Maybe underlayment seal tape to cover seams? Or double sided tape to secure to the floor/prevent it from moving as the OSB 4' x 8' sheet is placed on top of it and screwed down to 1st layer subfloor? All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll Hardwood Flooring Underlayment

Status: Open Dec 22, 2020 - 10:40 AM

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Staff Answer

Dec 27, 2020 - 03:42 AM

Silicone Vapor Shield (SVS) sits in between the flooring and the subfloor and by its intrinsic nature which is smooth and slick and not rough like OSB, prevents abrasion. Because it does not adhere to either flooring or subfloor it does not restrict the movement of either.Staple it down according to manufacturer's instructions shown on website here: https://www.greenbuildingsupply.com/c...

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You mention it "reduces abrasion", is that specified somewhere? Does it allow same level of movement as rosin paper? Manufacturer of OSB in a two layer subfloor layout calls for 15lb felt (prevent squeaking). Doing 1 x 6" wood slats as 1st subfloor layer, then underlayment on top of the 1st subfloor layer (15 lb felt, or equivalent, presumably silicon vapor shield, aka SVS), then a 1 1/8" OSB subfloor layer, which we xxxx down through the underlayment with 1 3/4 inch decking screws. a) Do we staple/nail down silicon vapor shield or loose lay? Maybe underlayment seal tape to cover seams? Or double sided tape to secure to the floor/prevent it from moving as the OSB 4' x 8' sheet is placed on top of it and screwed down to 1st layer subfloor?

All Globe Inc, Silicone Vapor Shield for Hardwood Floors, 200 SF Roll

Non-toxic, zero VOC, retarder for hardwood flooring Silicone Vapor Shield (SVS) is the best-rated underlayment paper for moisture protection of nail down or engineered hardwood flooring over plywood or OSB subfloors. Rather than trapping moisture, this semi-impermeable vapor retarder allows moisture... See More

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