HydroGap® Drainable Housewrap



  • Eliminates excess moisture and protects against mold and rot
  • 1mm spacers creates a drainage gap between sheathing and cladding
  • Removes 100x more bulk water than standard housewraps
  • Two non-woven layers surround the water hold-out film providing superior strength and protection from surfactants and damage during installation

Works Well Behind:

  • Fiber Cement
  • Wood (including shingles & shakes)
  • Vinyl & Insulated Vinyl
  • Manufactured Stone
  • Stucco
  • Metal

Product Specs:

  • Thickness: 1mm
  • Width: 5 ft.
  • Perm: 16
  • UV Exposure: 120 days
  • Length: 100 ft.
  • Warranty: 15 Year product / 20 Year system 
  • Fire Rating: Class A
Benjamin Obdyke Incorporated (“Benjamin Obdyke”), warrants that HydroGap® Drainable Housewrap and / or HydroFlash, when installed in accordance with Benjamin Obdyke’s published installation instructions, is free from manufacturing defects for fifteen (15) years from the date of purchase.

Subject to the following Product specific terms and conditions, Benjamin Obdyke warrants that for a period of twenty (20) years from the date of purchase, Products, identified below, when installed in strict accordance with the applicable Benjamin Obdyke Installation instructions, in a properly constructed and designed wall system, following the applicable building codes and accepted industry standards for each type of structure.
HydroGap Installation Instructions:
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5 out of 5 (based on 23 ratings)
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This was our first use of Hydrogap as we are building a mountain home in Virginia with shake shingle exterior. My team found the Benjamin Obdyke Hydrogap to apply easily and it is very durable. We found the quality of the wrap to be excellent and it had a nice finished look prior to shingle application. I plan to use it again.
Posted by Anthony M Marchese, 13th Jan 2022

house wrap

Very good product
Posted by William Bourgoin, 8th Dec 2021

Housewrap review

My contractor thinks this is the best house wrap he’s used ever
Posted by Caton, 6th Oct 2021


This product is awesome! Very easy to Use and perfect for my application of vertical reclaimed barn wood that will be ran vertically over 1x2 over your product that will allow it to drain. it’s made extremely well. Thank you!!
Posted by Robert Bruce, 4th Oct 2021

House wrap

Quality product, it goes on easy. The towns building inspector really likes it.
Posted by Jay Temple, 8th Sep 2021

so far so good

The material is sturdy, but the blue dots appear to come off a little to easily. After putting a ladder against the wall the blue dots either crush or rub off completely. This isn't a deal breaker since there are plenty left to still do the job, but it was surprising.
Posted by Howard, 1st Sep 2021


My husband loved this product , and gives it 5 stars , easy to work with.
Posted by Mary Vadi, 11th Mar 2021

Hydrogap Housewrap

Good stuff. The 5' tall roll was easy to manage. This housewrap doesn't tear like others I've used in the past. Will buy again when I reside the rest of the house.
Posted by Holden Sorem, 21st Aug 2020

Hydrogap housewrap

This product has been popping up more and more on commercial properties. Engineers are requesting this and the guys in the field love it. Super easy to install, and works great.
Posted by Brandon, 28th Jan 2020