Round Roof

rh911

Been roofing for a number of years, Recently moved into a historic region that has turn of the century homes. Currently installing laminated shingles on a round / curved porch. This is not an exact curve and does not go to a peak. I have some ideas but hoping for some advice from experience?

Tom R

Not something I've done, - - and not even sure exactly what you're asking, - - but if it's in reference to how to lay the shingles consistently, - - I think I would 'scribe' lines to follow, using the outside radius of the roof as my original reference point. Drill the first (bottom) hole at 11" (or whatever, - - 11" would allow for a 1" overhang), - - and the remaining holes at 5" increments (16", 21", 26", etc.) apart in a long strip of plywood that you can stick a colored crayon (or crayons) througn, - - and have a helper guide the bottom edge along the outside radius as you let it 'ride' along the roof, perpendicular to that same outside edge, and draw on your 'top-of-shingle' layout lines.

And then, - - technically speaking, - - and to keep the sides of your shingles tight to each other, - - you would need to make the appropriate 'miter-cuts' on the shingle edges, - - from 'nothing' at the bottom, to 'whatever' at the top.

For 'real' precision, - - you'd also make an appropriate 'radius-pattern' (even if slight) as a guide to cut (or snip) the bottom edge of each shingle, also . . .

jmorgan

Same as Tom R., except we used a masonry string and kept shortening it. On a sharp curve try cutting the shingles in half, before installing them. Makes it look "rounder"
Jim

RooferJim

Its very slow go but when done right looks awesome. we also run a string down from the apex and scribe a line and also use the string for your shoulder cuts. they will get smaller as you go up.

RooferJim
www.jbennetteroofing.com

Grumpy

I typically push metal, often times granulated modified if the round won't be seen. I have seen some done with shingles and for some reason the ridge right at the center always seems to grab my attention. Maybe just because I am a roofer and pay more attention to roofs when I drive than the road.

This is assuming we are talking about the same kind of round. I am talking about an eyebrow. Perhaps you are not. From the other guy's responses it seems you are talking about a turret. If so, I suggest taking a look at the davinci slate website. It shows a very nice video about isntalling tile on turrets and many of the same principals apply to shingles, especially since you will be cutting cutting cutting in order for them to look even.

Ed the Roofer

Lets see if I uploaded the photos.

Cool! I learned how to upload a photo now. These photos are scanned from a job we did 7 years ago, and I believe we installed one hip in the center of the radius section of the front porch. We also installed new gutters and downspouts along the entire home, including the radius section, which was done in small segmented sections, pop-riveted together after proper splicing sealants were applied.

Ed

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