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How to Look

at a House


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


More blog posts about roofing:

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

  2. Why is the attic painted silver?

  3. Should I buy a house that needs a new roof?

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

  5. What is the minimum pitch of an asphalt shingle roof?

  6. What’s the difference between a gable roof and a hip roof?

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

  8. What is roof pitch?

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

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

  11. What is a “cool roof”?

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

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

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

  15. What is the difference between plywood and OSB?

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

  17. What is the minimum pitch for a metal roof?

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

  19. What is an H-clip?

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

  21. If my roof is not leaking, why does it need to be replaced?

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

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

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

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

  26. What can I do to prevent roof leaks?

  27. How can I tell if a roof has more than one layer of shingles?


More blog posts on related subjects:

  1. How can I tell if a house has insulation?

  2. What are the warning signs of a dangerous deck?

  3. Does it make sense to buy an older mobile home and remodel it?

  4. How do you determine when the house was built?

  5. Should I buy a fixer-upper?

  6. How do I remove cigarette odor in a house?

  7. The house has asbestos siding. What should I do?

  8. How do I get insurance if my home can’t pass a 4-point inspection?

  9. There’s an old fuel oil tank underground in the yard. Is it a problem?

  10. Why do the floors slope in this old house?

  11. The garage has been converted to a family room. Is that alright?

  12. When is a railing required for the edge of a deck or porch?

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

  14. What is a “continuous load path”?

  15. What are the different roof deck attachment discount categories for a wind mitigation inspection?

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

  17. What are the warning signs of a sinkhole?

  18. What is engineered wood siding?

  19. Should I be suspicious about a concrete block house covered with siding?

  20. What are the hazards to avoid when going into an 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.

    We occasionally find problems with truss roof structures during a home inspection due to poor storage or handling during construction of the home, or improperly repaired damage later from a fallen tree branch. To read more about defects in truss roofs, go to our blog post “What are the most common problems with wood roof trusses?”

    There are also occasions when a stick-framed addition with a shed roof has been added to a home with a truss-framed main roof, and one end of the rafters bears on the top chords of the trusses. Because trusses are not engineered to handle any additional loads like this, it is a serious defect. While the roof rafters of a home addition can intersect the roof trusses in order to merge the sheathing of the two roofs, the bearing points of the rafters should be framed down to the common bearing wall between the two structures.


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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