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How to Look

at a House


A blog with answers
to your questions about
HOME INSPECTION
and HOME MAINTENANCE

Photo - TECO
Photo - TECO


More Blogs on Similar Subjects:

  1. I’m buying a ‘50s house with a “gravel” roof. Is the roof going to be a problem.

  2. Are roof trusses better than roof rafters (stick framing)?

  3. How can I be sure my roofing contractor got a permit?

  4. How can I make my roof last longer?

  5. What is the cost difference between asphalt shingle and metal roofing?

  6. What’s the difference between a roof inspection and a roofing estimate?

  7. What is roof pitch?

  8. What’s the difference between “composite” and regular wood siding?

  9. Should I buy a fixer-upper?

  10. What are “shiners” and why did they make me lose my insurance discount?

  11. What do you look for when you inspect a roof?

  12. What does “lack of tab adhesion” in an asphalt shingle roof mean?

  13. Why does my insurance company want a roof letter?

  14. I saw some staining on the ceiling. Do you think the roof is okay?

  15. How do I find out the age of a roof?

  16. What is a TPO roof?

  17. What is a “cool roof”?

  18. What are the roof sheathing requirements for a roof replacement in Florida?

  19. Can metal roofing be used on a slow slope/pitch roof?

  20. How many layers of roofing are allowed on a home?

  21. What is the average lifespan of a house?

  22. What are the common problems to look for when buying a 1970’s house?

  23. What is the difference between galvanized and galvalume metal roofing?

  24. Does it cost more to roof a hip roof than a gable roof?

  25. What is fiber reinforced concrete?

  26. What is the difference between a clip, single wrap, and double wrap for the wind mitigation form?

  27. What is a “continuous load path”?

  28. Is a ridge board/beam required for a roof framed with rafters?

  29. What causes a lump or dip in the roof?

  30. What are the most common problems with wood roof trusses?

  31. What is the difference between roofing felt and synthetic underlayment?

  32. Why is a popped nail in a shingle roof a problem? How do I fix it?

H-CLIP -  viewed from bottom of roof sheathing in attic.

Welcome to our blog!
We want you to be an informed homebuyer, and each blog post is a question that we have answered for our friends and customers over the years. Hope they help you make a good choice for your next home.

    They are also used for unsupported edges in plywood flooring, and building codes often specify that H-clips be installed for certain combinations of plywood thickness and span. The lack of installed H-clips is most noticeable to an inspector walking on a roof when there is a slight flexing of the roof deck under-foot because of a footstep landing on one aide of an unsupported plywood edge. However, we have never seen the lack of H-clips cause an actual structural problem, so it is not something that we report as a defect.

    It is more likely that an H-clip that is damaged, jammed into the center plies of the plywood, or spaced too far from the center of the span will cause a problem—which is typically buckling or bowing due to uneven stress along the adjacent edges of the plywood. This is sometimes visible from the ground as a lump or dip in the surface of an asphalt shingle roof.


While we hope you find this series of articles about home inspection helpful, they should not be considered an alternative to an actual home inspection by a local inspector. Also, construction standards vary in different parts of the country and it is possible that important issues related to your area may not be covered here.
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