How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
site-built, mobile/manufactured and modular homes
ROOF AND ATTIC
Monday, May 21, 2018
Here’s links to a collection of our blog posts about "ROOF AND ATTIC":
• Why is my roof sheathing sagging between the trusses?
• Are H-clips required by the building code for roof sheathing?
• Why is granule loss a problem for an asphalt shingle roof?
• What are the mistakes to avoid when doing attic improvements?
• What causes roof shingles to curl up at corners?
• What causes leaks at a fake roof dormer?
• What causes bubble-like blisters in a built-up and gravel roof?
• Why are there leaves in my attic?
• What is the most common type of roof-to-wall attachment?
• Why does it cost so much more to replace a steep roof than a low slope roof?
• Is an attic required to have a light by the building code?
• What are warning signs I need a new roof?
• How can I inspect my roof for hurricane damage?
• Why is premature curl of roof shingles a problem?
• Can I put a new asphalt shingle roof over an existing shingle roof on a manufactured/mobile home?
• What is the average life expectancy of an SPF roof?
• How can I tell if a roof has more than one layer of shingles?
• How do I safely remove a dead rodent (rat, mouse or squirrel) from the attic?
• What are the common problems with attic insulation?
• How do I safely clean up rodent (rat, mouse or squirrel) urine or droppings the attic?
• What is the life expectancy of an asbestos cement shingle roof?
• What's the average lifespan of a roof?
• What is a "square" of roofing?
• What are roofing purlins and battens?
• Why is it a mistake to replace a roof and not replace its flashings?
• Why is there no attic access hatch in the house?
• What is the difference between roll roofing and modified bitumen?
• What is the minimum slope for a clay or concrete tile roof?
• What is the building code requirement for an attic access hatch, scuttle, or door?
• What is the purpose of the gravel on a flat tar roof?
• Why is vermiculite attic insulation a problem for both buyers and sellers of a home?
• Does a roof with multiple layers of shingles last longer?
• What can I do to prevent roof leaks?
• What are the code requirements for NM-cable (nonmetallic-sheathed cable or Romex®) in an attic?
• Are roof trusses better than roof rafters (stick framing)?
• Why is a popped nail in a shingle roof a problem? How do I fix it?
• What is the difference between roofing felt and synthetic underlayment?
• What are the most common problems with wood roof trusses?
• What causes a lump or dip in the roof?
• If my roof is not leaking, why does it need to be replaced?
• Is a ridge board/beam required for a roof framed with rafters?
• Does it cost more to roof a hip roof than a gable roof?
• What is the difference between galvanized and galvalume metal roofing?
• What is the difference between plywood and OSB?
• How can I be sure my roofing contractor got a permit?
• How many layers of roofing are allowed on a home?
• What are the dark lines running parallel to shingles on my roof?
• Can metal roofing be used on a low slope/pitch roof?
• What are the roof sheathing requirements for a roof replacement in Florida?
• How can I make my roof last longer?
• What causes a sagging roof ridge line?
• What are the warning signs of a dangerous attic pull-down ladder?
• How can I find out the age of a roof?
• Does a gravel roof need maintenance?
• What is the average lifespan of a concrete tile roof?
• Should I buy a house that needs a new roof?
• Should I buy a house with an old roof?
• What is the average lifespan of a built-up and gravel roof?
• What is the average lifespan of a modified bitumen roof?
• What is the average lifespan of a metal (galvalume) roof?
• What is the average lifespan of an architectural (dimensional) shingle roof?
• What are those metal boxes on the roof?
• What is the average lifespan of a regular (3-tab) shingle roof?
• What does "lack of tab adhesion" in an asphalt shingle roof mean?
• What is the minimum pitch/slope for a metal roof?
• Why do roof edges start leaking?
• Why do my dormer windows leak?
• What is the minimum pitch/slope of an asphalt shingle roof?
• What is the average life expectancy of a TPO (Thermoplastic PolyOlefin) roof?
• Do home inspectors go on the roof? Do they get in the attic?
• Should I put gutters on the house?
• What's the difference between a roof inspection and a roofing estimate?
• How much of a roof truss can I cut out to make a storage platform in the attic?
• What is the stuff you paint an old mobile home metal roof with to extend its life?
• What's the difference between an "architectural" and a regular shingle roof?
• I'm buying a '50s modern house with a "gravel" roof. Is the roof going to be a problem?
• How does a home inspector find roof leaks? What about wet spots in the walls?
• What does a home inspector look for when examining a roof?
• Do stains on the ceiling mean the roof is leaking?
• How can I tell if the house needs a new roof?
• Why does my homeowner's insurance want a roof inspection?
• What are the hazards to avoid when going into an attic?
• What is a roof certification letter/report?
• When was a fire separation in the attic first required between sides of a duplex?
• How do you flash skylight, chimney, and pipe vent roof penetrations on a metal roof?
• What is the maximum span allowed for ridge boards?
• Is a house required to have an attic?
• Are soffit/eave vents required by code for attic ventilation?
• Why is insulation not allowed to touch around a gas flue in the attic even if it’s not flammable?
• Which are better: lead or rubber roof vent pipe flashing boots?
• What causes a shingle roof to deteriorate faster and fail prematurely?
• What would cause a new asphalt shingle roof to have loose tab adhesion (sealant strips)?
• Is it alright for a gutter downspout from an upper roof to empty onto a lower roof?
• Does the seller have to pay for a new roof?
• Can I install a new metal roof over an asphalt shingle roof?
• When is a cricket or saddle required on a roof?
• What is the code required minimum pitch/slope for a metal roof?
• What is the minimum slope of a flat roof?
• Should roofing nails be visible sticking into the attic?
• Why is there diagonal bracing at the roof rafters in the attic?
• Are wood roof trusses with plywood gusset plates alright for house construction?
• What are the rules for cutting, notching, or boring holes in an engineered wood truss?
• Can I remove the interior walls under a roof truss?
• What is the minimum size for attic access opening?
• What is the average life expectancy of roof sheathing?
• Is a hip roof stronger than a gable roof?
• Do you need a permit to repair a roof in Florida?
• Can I replace my own roof in Florida?
• What is a cool roof made of?
• Are kickout flashings required by code?
• What is an FBC roof covering?
• What is the difference between a collar tie and rafter tie?
• What is the average life expectancy of roof flashings?
• What is the average life expectancy of pipe boot flashings?
• What is the average life expectancy of rain gutters?
• Why are most house roofs slanted instead of flat?
• How much can you notch a roof rafter for the seat and heel cuts at bearing?
• Is it legal to bore holes through roof trusses to install wiring?
• When did Florida start requiring re-nailing of roof deck sheathing for a roof replacement?
• When were staples banned for roof sheathing attachment in Florida?
• When did the Florida code start requiring roof sheathing nails to be ring-shank instead of smooth?
• Is it normal for a new shingle roof to lose granules?
• Why is my metal roof leaking?
• How loud does the noise get while installing a new roof?
• Is a house required to have an eave overhang by code?
• How far should a metal roof overhang the drip edge?
• What things can void a shingle roof warranty?
• How do I minimize roof penetrations?
• What is the difference between plywood and OSB?
• What are the signs my flat roof needs to be replaced?
• Can water run uphill on a roof?
• How long does fiberglass attic insulation last?
• What is a dead valley at a roof?
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