Wavy Deck


#1

I saw a new roof with 3-tab shingles on it and it loks very wavy like if the rafters are not layed out nice and even .

This waves are from the deck

Just wanted to ask your experiences regarding this common problem .


#2

I would also like to know how to fix this problem. My roof has a couple of waves, but I think it is from the plywood bowing under. Not sure though.


#3

usually i think its the plywood bowin down more than the rafters bein to high.

but it wouldnot supprise me if it was rafter related.

fixin?
well if new plywood dont work then i like to tell the h/o it gives the house character.
while lookin at them crazy.

works for me.

i try to stay out of rafter restructuring.

its best for me to call a carpenter at that point.

gweedo.


#4

Once you do the tearoff, run a stringline from L to R, nail to nail (tugged down to the top of the deck).

Do this in one big zig zag (more like a squared zig zag) & look for dips.

The fast method is to lay a 3’ level on the deck & look for gapping.

For the vast majority of 30yr+ roofs, minor ‘waving’ isn’t going to be noticed & isn’t a concern provided it’s not a rotten section or a structural flaw that will create shingle failure.

It’s not too hard to fix & is easy $$ IMO… remove decking, lay the stringline out tight & do a “truss up” with new 2x6’s. Redeck with new pieces if the old deck is bowed.

I usually charge about 45.00 per 8' run of rafter, + 20.00 if they want it drilled & bolted vs. nailing. This is in addition to my rate of $ 85.00 per piece of 1/2" decking.


#5

LMAO :smiley:


#6

gweedo like Q,
gweedo make Q laugh.

gweedo is pleased.

gweedo.


#7

Is your name “Gweedo” or Yoda?