Q: What is the correct way to install a two-ply roofing underlayment? I was quoted a price on two-layered underlayment for my roof (Fontana G40 underlayment). I asked how much overlap he uses in his installs and he answered 2-4 inches. I was very confused as I have read your information and then confirmed with the TRI Installation Guide (page 17) that there should be 18-19 … [Read more...] about How To Install Two-Ply Roof Underlayment?
Roofing
Reuse or Replace Concrete Tiles When Reroofing ?
Q: Our original concrete tile roof, a little east of San Diego, is around 30+ years old with a roof pitch of about 6 in 12. My guess is that the underlayment should probably be replaced before adding solar panels. The tiles are in great shape with no cracks anywhere. The only problem is on the south end of the house where the fascia had some termites, so I cut off about a … [Read more...] about Reuse or Replace Concrete Tiles When Reroofing ?
Peel-and-Stick vs. Hot Mop For Florida Roof Underlayment
Q: I have received proposals for re-roof of my house however each proposal calls for different underlayments with significant price differences. I live in Southeast Florida. I would appreciate guidance as to what makes the most sense. Thank you for your input; it is greatly appreciated! Proposal 1: - Install on Roof Deck Area: 2.1 One layer of 30# ASTM D-226 asphalt … [Read more...] about Peel-and-Stick vs. Hot Mop For Florida Roof Underlayment
What Caused Water Stains on Ceiling?
Q: How do I identify the source of a water stain on the ceiling? I’m not sure if a leak is from the bathroom directly above or from something else. Also, once identified, how do I go about fixing the leak? – A.G. A: Finding the source of a leak in a ceiling often involves a bit of detective work. Like a detective, you start with the most likely suspect. If you can rule out … [Read more...] about What Caused Water Stains on Ceiling?
Best Low-Slope Roofing Option
Q: What is the best option for replacing a low-slope roof over an addition? We have a low-slope shed roof that was repaired with roll roofing as an emergency patch in 2014. We had ice damage which forced the roof repair, but because it was in the winter, only the lower half of the 23×12' area was repaired. The top half of the addition roof has asphalt shingles where it … [Read more...] about Best Low-Slope Roofing Option
Best Roofing for the Pacific Northwest
Jean writes: I have a concrete tile roof and live in the Pacific Northwest where we have a lot of moss on our roofs. Over the years, the moss removal folk have broken many of my concrete tiles and we no longer can get replacements. The roof is 30 years old, and I am wondering if I should just remove it and get a composite or asphalt shingle roof. Would removing the extra … [Read more...] about Best Roofing for the Pacific Northwest
Metal vs. Plastic Roofing for Carport
Jill asks: What is the best roofing product to use on a carport and pergola? The carport roof covers both, which are part of the same structure. I am aware that there are plastic-coated steel sheets, polyester-coated, zinc, and polycarbonate sheets. It’s a minefield. There are lots of trees overhead, so everything goes green including the roof and patio. I was thinking of maybe … [Read more...] about Metal vs. Plastic Roofing for Carport
Buckling Asphalt Shingles
Lee Writes: Please tell me what caused the buckling shingles in this photo. It appears to me to be the materials rather than structural. This roof was installed in April 2013 in northern Texas. The shingles are Tamko 20-year 3-tab. There is visible warping three years following the installation, as seen in the attached images. The roofer has recently inspected in the … [Read more...] about Buckling Asphalt Shingles