Checking Whether a Roofing Felt Test Report Matches Your Order
A test report is useful only when it relates to the product being offered. Check sample identity, date, method and the reported result before using it in a purchasing decision.
By Merily Waterproofing · Bulk supply for importers, distributors and building-material wholesalers

Match the sample to the offer
Compare the report’s product name, brand, sample designation and measurable specification with the order. A similar label or general material family is not enough.
A report for one batch should not automatically be presented as evidence covering every roll option or a different current product.
Read the result within its scope
Identify what was tested and by which method. Check units, test conditions and any limitations stated in the document. Distinguish a reported result from a claim of broader system approval.
If a translation is unclear, have the source wording and units reviewed rather than repeating a doubtful English parameter.

Handle historical documents honestly
Merily’s source archive includes a 2018 Grade 350 sample report. It is historical sample evidence, not a blanket current certification for the full range.
Where your order needs updated or specific testing, state the requirement before purchase. Confirm what evidence is available for the exact item.
Put it in your buying record
| Report check | Compare | Reason |
|---|---|---|
| Sample identity | Product, brand and designation | Correct item |
| Date and batch | Relation to offered supply | Scope of evidence |
| Method and units | Required property | Comparable result |
| Limitations | Report wording | Avoid inflated claims |
Questions buyers ask
Is an old report automatically useless?
It can provide historical information, but its relevance to the current offered item must be established.
Can one tested sample cover every roll weight?
Do not assume that. Check the report and applicable scope.
What should we do with unclear translated units?
Verify against the original document and obtain competent technical clarification.
