Our crawl space was full of sharp edged gravel. The 550 felt was the perfect answer as a barrier between the 12 mil vinyl and the gravel. Easy to install and seam. im

It became almost like a cushion between the gravel and my knees. I would strongly recommend the use of this felt with any of the vinyl encapsulation product it made all the difference in protecting the vinyl.

Our crawl space was full of sharp edged gravel. The 550 felt was the perfect answer as a barrier between the 12 mil vinyl and the gravel. Easy to install and seam. im

It became almost like a cushion between the gravel and my knees. I would strongly recommend the use of this felt with any of the vinyl encapsulation product it made all the difference in protecting the vinyl.

We used on the inside foundation wall and around crawl space doors to help with the damp soil.

Works incredibly well. I plan to tape up a friend for Halloween.

Received sump basin, Very well built and fits my needs at this time,I did give it all star rating as i believe it will hold up for a long time