HomeMy WebLinkAboutLetter - Waterproofing Notesa 'fin .. _t_ .
WHOLE HOUSE ENGINEERING
April 15, 2022
Re: Habitat for Humanity — St. Lucie County
Waterproofing Notes - Various Sites
Permit # - - - - - - - - - - 2110-0232
1`1 � b�S Cct.S
To Whom it May Concern:
Whole House Engineering, LLC
4451 St. Lucie Blvd., Suite 201
Fort Pierce, FL 34946
(772) 409-1003 office
(772) 409-1020 fax
RECEIVED
APR 1,9 2022
St. Lucie County
Permitting
This letter is to address questions about the waterproofing notes provided on plans.
Waterproofing notes stated that CMU water resistant coating be applied for 24" around the opening
of the window. This note has been revised to state that water resistant coating be applied in
accordance with the manufacturer's instructions as shown below.
WATERPROOFING NOTES:
1. PRIOR TO BUCK INSTALLATION TREAT THE MASONRY OPENING WITH A CMU WATER RESISTANT COATING
TO SEAL THE WINDOW / DOOR CAVITY TO PREVENT IT FROM ABSORBING WATER. THE CMU WATER
RESISTANT COATING SHALL BE APPLIED IN ACCORDANCE WITH THE MANUFACTURER'S RECOMMENDATIONS.
2. INSTALL BUCKS SO THAT THERE ARE NO EDGE GAPS EXCEEDING 1/S' BETWEEN BUCK AND MASONRY.
3. PRIOR TO BUCK INSTALLATION APPLY 3/8" NOMINAL DIAMETER BEAD OF SEALANT BETWEEN THE BUCK AND THE
MASONRY TO PREVENT THE PASSAGE OF LIQUID BEHIND THE BUCK. COMPLETELY SEAL THE ENTIRE END OF THE
WOOD BUCKS WITH SEALANT TO RESTRICT THE PASSAGE OF LIQUID THROUGH THE CUT ENDS AND THE ENTIRE
EXTERIOR FACE AND RETURN SURFACE OF THE BUCK SHALL BE COATED WITH A LIQUID APPLIED WATER RESISTIVE
COATING / SEALANT.
4. PROVIDE CONTINUOUS 3/8" BEAD OF SEALANT ON WINDOW / DOOR FRAMES AT ALL PERIMETER ON FRONT
AND BACK SURFACE PRIOR TO WINDOW / DOOR INSTALLATION.
5. AFTER WINDOW / DOOR INSTALLATION PROVIDE FOAM SEALANT BETWEEN THE BUCK (OR PRECAST SILL) AND
THE WINDOW / DOOR TO ENSURE A WATER RESISTANT INTERIOR AIR SEAL AROUND THE ENTIRE PERIMETER.
Please advise if you have any questions and/or comments regarding the information contained
within.
Sincerely,
Ryan Bays, PE
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