Siding Underlayment

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Q250TS
Product Line: TopShield®
Product Description: TopShield® Q250TS Siding Underlayment is a 0.2" thick closed-cell extruded polystyrene (XPS) underlayment, available in convenient 4 Ft x 48 Ft fanfold bundles.
Q350TS
Product Line: TopShield®
Product Description: TopShield® Q350TS Siding Underlayment is a high-performance, 0.3" thick closed-cell extruded polystyrene (XPS) underlayment, supplied in convenient 4' x 48' fanfold bundles.
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