UICTl| B Eigh Eaily Strength PORTIAND

Gement

Guqrcrnteed to meel or exceed requirements ol Americqn Society lor Testing Mcrterials Specificcrtions lor High Ecrly Strength Portlcnd Cement, qg well ss Federcl Specificctions lor Cement, Portlctnd, High-Ecrrly-Strength, No. E-SS-C-201 a.

HIGH EARI.Y STRIIIGTH

(28 dcry concrete strengthe ia 2rl hours.)

SUI,PHATD RDSISTAT{T

(Result oI compound composition crnd usuclly tound only in specicrl cements desigaed lor this purpose.)

Illtfffi UM EXPAIfSI(IIf and C0IlTRACTtOtf

(Extremely severe <ruto-clave test results consistently indiccrte prcrcticclly no expcnsion or contr<rction, thus elimincrting one oI mosl diflicult problems in use oI cr high ecrly strength cement.)

PAGruI) N MOTSTURD. PROOr GREIII

PAPDR SACI mart buyers apply the definition not only to a product, but to the manufacturer as well. ril7e invite your inquiry at our general office or at any of. the addresses given below.

(Users' qssurcrnce ol lresh stock unilormity and proper results lor concrete.)

SOUND: Free from faw, def€ct or decay; pcrfrct of the kind; firm; strong; trustworthy.

Out here in the Pacific Northwest. at Associated Plywood Mills offices and plants, we put the "sound" yardstick to the test all along the line from logs in ponds to fnished plywood in warehouses. It has been so fot 28 years. That is why APMI plywood is bought with confidence and why stoclis are quickly available in 14 locations from coast to coast.

How to Avoid Paint Troubles on Siding

John Reno, The Pacific Lumber Company, Chicago, Ill', writes that one of their distributors asked them to prepare a list of "Do's and Don'ts" on horv to avoid paint troubles on siding. Here are their recommendations:

1. IJse clear heart kiln-dried siding only.

2. Keep siding dry in storage.

3. Be sure sheathing is dry when siding is installed.

4. Paint ends of siding with thick paint when installingor before. (In pile.)

5. Use galvanized nails.

6. Leave no open joints when installing siding-butt ends of siding tight against corner boards and casings; also against ends of adjacent pieces of siding, including corner mitres.

7. Ends of siding against sloping roofs should be trimmed back at least 3A"-and should be painted.

B. N{etal corner pieces must be fitted rvater-tight.

9. Make tight construction at eaves to prevent entrance of r'vater during rvindy, driving rains.

10. Ilxtend roof sheathing and paper beyond the outside of r'vall siding, so that any condensation on underside of roofing material runs off outside of the siding, and not into stud space or under sidiug. Lorver edge of frieze board to be against outside of siding'

11. I-ou,est course of siding should be at least 6" above ground.

12. Carefully install approved vapor barrier as close as possible to the rvarm side of the wall-especially when there is insulation in the wall.

13. Make sure the sheathing paper is not a vapor barrier.

11. Carefully install flashing over all rvindou's and doors, extending metal down over edges and ends of wellsloped water tables-prevent rvater getting in back of siding or jambs. Edge of siding should not rest do'r,l'n tight against "near level" lvater tables over doors or windows.

15. Use a good grade of paint-do a good job of painting-

16. Don't paint on a damp day-or a cold day.

17. After installing sicling, apply prime coat of paint immediately-before rain occurs. (Of course, priming all surfaces before installing would be ideal.)

1.9. l)o all plastering and let plaster d.y thoroughlv throughout its full thickness before applying second and third coats of paint. Leave windorvs open during clrying of plaster.

19. Prevent movement of moisture to stud spaces from basement or crarvl sPaces.

20. Ventilate attics that have insulated floors.

21. Start out rvith dry siding, keep it dry, and prevent u,ater or condensation getting behind the siding.

New Plywood Mill Stcrts

The Three Rivers Plywood & Timller Companl', at Darrington, \\rash., started production late in NIay. It rvill produce 250,000 square feet of tenth-inch single-sheet veneer daily and employs 15 men.